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Heller, J., and Daria Zlachevskaia. "Is it possible to improve methods of intellectual property valuation?" Zeszyty Teoretyczne Rachunkowości 45, no. 2 (June 21, 2021): 161–86. http://dx.doi.org/10.5604/01.3001.0014.9568.
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Purpose: The purpose of this study is to identify ways to improve or simplify the quality and accuracy of IP valuations via accounting regulation improvements. Methodology/approach: This research relies on qualitative research methods such as case law analysis and comparative research of accounting standards and approaches. Findings: Evidence from this study points towards the conclusion that financial statements currently only reflect a historic financial record of the particular business, profoundly biased by a conservative tangible assets perspective. The central thesis of this study is that it makes sense to adopt a comprehensive intellectual property valuation strategy to ascertain the specific value of the intangible assets since the comprehensive application of valuation models is likely to yield superior results to using them separately. Research limitations/implications: Although the proposed approach seeks to bring more clarity to the valuation process while simplifying the appraisal of intellectual property assets, its efficacy is subject to increased transparency, a maturing intellectual property market, and credible data availability. Originality/value: This study makes a valuable contribution to research on methods that facilitate accurate intellectual property valuation while offering an alternative valuation model which combines the strengths of individual valuation models.
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Uwaifiokun, Vincent. "Application of Contemporary Equated Yield and Dcf Explicit Growth Methods in the Valuation of Over-Rented Properties in a Recessionary Period: A Case Study of Nigeria." Real Estate Management and Valuation 26, no. 3 (September 1, 2018): 35–50. http://dx.doi.org/10.2478/remav-2018-0023.
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Abstract Valuations have always been time specific and, if properly undertaken, are supposed to give a true reflection of property market conditions at any given point in time. In periods of economic decline, when properties are leased or tend to exchange hands at rents or prices lower than their true market value, a need to capture the explicit growth rate associated with an instability in the property market arises. With the Nigerian economy currently facing its worst recession in years, the onus is on valuers to adopt contemporary methods of valuation which seek to mirror the true situation of the property market at any point in time; something which, hitherto, conventional methods of valuations have failed to do. This paper therefore takes a pilot survey of the types of investment valuation models currently adopted by valuers when carrying out valuations of reversionary properties in a recession. The study seeks to highlight the knowledge gap of valuers, both in practice and in the academia, concerning the use of the Equated yield and DCF explicit growth method of valuation, and hence enlighten them and the general public on its use as a more appropriate method of valuing properties during a downturn.
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HUBAR, Yu, V. SAI, O. HULKO, and A. MARCHENKO. "Current state of development of agricultural land assessment methods." Modern achievements of geodesic science and industry 42, no. II (September 1, 2021): 118–26. http://dx.doi.org/10.33841/1819-1339-2-42-118-126.
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Purpose of this research is to improve the methods of valuation of agricultural land. Today, the moratorium on the purchase and sale of agricultural land has been lifted and sale of agricultural land is increasingly raised and therefore the problem of establishing an objective (market) price for agricultural land is relevant, because increasing the level of their use is an objective necessity and condition for the gradual development of society [Hubar Yu., 2020]. Methodology. A significant contribution to the study of the theory and methods of land valuation was made by A. S. Danilenko, Yu. F. Dekhtyarenko, Yu. P. Hubar, A. G. Martin, M. G. Stupen, A. M. Tretyak, G. V. Cherevko. Instead, the formation and improvement of methodological bases for the monetary valuation of agricultural land paid attention to G. D. Gutsulyk, D. S. Dobriak, О. S. Dorosh, O. F. Kovalishin. Emphasis was placed on the shortcomings of the economic assessment conducted in the Soviet period I. K. Bystryakov, S. I. Doroguntsov, Hubar Yu. P., A. M. Tretyak, M. A. Hvesyk and others. However, despite the considerable amount of scientific research in which the land was considered a means of production, tools and objects of labor (which in the current environment is insufficient), little studied and debatable are the value of land as a whole system with all its properties. This is due to the fact that agricultural land is mostly assessed differently according to the available dominant indicators (yield, value of gross output). This does not build a hierarchy on the importance of other indicators. The complexity and versatility of the problem of land valuation require the continuation and deepening of scientific research in this area. Results. The study is based on the general principles of economic and mathematical modeling, mathematical statistics, econometrics, basic and applied research. The information base of the research consisted of scientific works of domestic and foreign scientists in the field of real estate appraisal, land and city cadastres, statistics, ecology. The issue of land pricing is complex and multifaceted, the development of the land market depends on its solution. Therefore, further research should be aimed at improving the valuation of agricultural land. This process should be based on state service, taking into account the economic and political situation. This will ensure after the lifting of the moratorium on the disposal of agricultural land, the creation of a competitive environment in the land market, the objectivity of the assessment and increase the flow of funds to the state budget. Scientific novelty and practical significance. The performed researches will allow to improve the quality of determining the market value of agricultural lands for further development of land reform in Ukraine. The most important results of the study are: generalization of scientific provisions for the implementation of land valuation works and methodological approaches to determining the value of agricultural land; highlighting the disadvantages and advantages of modern methods of agricultural land valuation; proving the importance of taking into account environmental factors in the assessment of land arising from the activities of agricultural production; substantiation of the need to assess land plots with a set of physical properties of soils and spatial conditions of their implementation; development of methods for assessing the normative yield of grain crops on the basis of dynamic and statistical simulation modeling and software for its spatial implementation. It is established that the use of market-based prices will allow to make informed management decisions during the implementation of land reform in Ukraine. Individuals and legal entities on the basis of the proposed developments will be able to assess the investment attractiveness of agricultural land.
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Smith, V. Kerry. "Some Issues in Discrete Response Contingent Valuation Studies." Northeastern Journal of Agricultural and Resource Economics 14, no. 1 (April 1985): 1–4. http://dx.doi.org/10.1017/s0899367x00000696.
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The use of survey or contingent valuation methods to estimate an individual's valuation of non-marketed goods, especially environmental resources, has attracted increasing attention in recent years. Initially, research efforts in this area were viewed by a majority of the economics profession with considerable skepticism. However, with the increased need for information on individuals’ valuation of a whole range of environmental resources and limitations on the ability of indirect market-based methods for valuing all of these resources, there has been a substantial increase in the use of contingent valuation methods to provide this information. Indeed, a recent state-of-the-art assessment (see Cummings et al. [1984]) of the contingent valuation method (CVM) has been able to develop a set of reference operating conditions under which it was reasonable to expect the CVM approach would yield estimates with accuracy that was approximately comparable to the indirect methods. Clearly the definition of these conditions is a judgmental one. Nonetheless, it was based on a substantial number of comparative studies evaluating the relationship between CVM and indirect market estimates of the benefits associated with changes in specific environmental resources. Moreover, it does reflect the changing attitude toward the CVM approach. It is therefore particularly appropriate to consider new directions in the development of the contingent valuation method.
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Gilbert, Scott Dale. "The Value of Future Earnings in Perfect Foresight Equilibrium." Journal of Forensic Economics 22, no. 1 (January 1, 2011): 21–41. http://dx.doi.org/10.5085/jfe.22.1.21.
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Abstract The present work considers the problem of valuing a future income stream in a perfect foresight economy. In this setting, with competitive equilibrium in labor and asset markets, market valuation of labor-generated income streams can be very simple. However, it can also be undone by moral hazard, in which case valuation may be based instead on fair compensation. I show that perfect foresight valuation emerges somewhat imperfectly in the forensic economics literature. To apply this type of valuation, the economist must form an expectation E[P] about perfect foresight price P. I consider several models of this expectation, some of which yield standard present value equations. I find that, while standard equations “fit” historical data well in some respects, they miss some dynamics that are better captured by more advanced econometric methods.
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DEWYNNE, J. N., and N. EL-HASSAN. "THE VALUATION OF SELF-FUNDING INSTALMENT WARRANTS." International Journal of Theoretical and Applied Finance 20, no. 04 (May 2017): 1750025. http://dx.doi.org/10.1142/s021902491750025x.
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We present two models for the fair value of a self-funding instalment warrant. In both models we assume the underlying stock process follows a geometric Brownian motion. In the first model, we assume that the underlying stock pays a continuous dividend yield and in the second we assume that it pays a series of discrete dividend yields. We show that both models admit similarity reductions and use these to obtain simple finite-difference and Monte Carlo solutions. We use the method of multiple scales to connect these two models and establish the first-order correction term to be applied to the first model in order to obtain the second, thereby establishing that the former model is justified when many dividends are paid during the life of the warrant. Further, we show that the functional form of this correction may be expressed in terms of the hedging parameters for the first model and is, from this point of view, independent of the particular payoff in the first model. In two appendices we present approximate solutions for the first model which are valid in the small volatility and the short time-to-expiry limits, respectively, by using singular perturbation techniques. The small volatility solutions are used to check our finite-difference solutions and the small time-to-expiry solutions are used as a means of systematically smoothing the payoffs so we may use pathwise sensitivities for our Monte Carlo methods.
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d'Amato, Maurizio, Nikolaj Siniak, and Giulia Mastrodonato. "“Cyclical assets” and cyclical capitalization." Journal of European Real Estate Research 12, no. 2 (August 8, 2019): 267–88. http://dx.doi.org/10.1108/jerer-05-2018-0022.
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Purpose The purpose of this study is providing a possible methodological solution to the valuation of cyclical.assets. International Valuation Standards introduce a brand new definition of property: the cyclical asset (International Valuation Standards Council 2017, IVS 105, p. 39 and p. 41). Among different property valuation methods, normally this kind of properties is appraised using income approach. In this group of methodology, the opinion of value is based on a proportional relationship between property value and rent. In the past years, a group of methods called cyclical capitalization has been proposed (d’Amato, 2003; d’Amato, 2013;d’Amato, 2015; d’Amato, 2017a; d’Amato 2017 b; d’Amato, 2017c). This method proposes an integration between property valuation and property market cycle. Design/methodology/approach Cyclical capitalization method is applied using a time series of property market rent of offices in prime location in the South Bank area in London. It consists of the determination of more than one all-risk yield to reproduce the property market cycle. Findings A comparison between the cyclical capitalization and two traditional capitalization rate shows how the proposed model is able to provide a stable opinion of value. Research limitations/implications The method may represent a contribution for the determination of the value of cyclical assets or for the mortgage lending value. Practical implications This paper provides the possibility to have a property valuation method less sensitive to upturn and downturn of the property market. Social implications The valuation based on cyclical capitalization are less sensitive to the upturn and the downturn of the market. Originality/value It is one of the first scientific paper addressing the problem of the determination of the value of cyclical assets.
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Sanz, Blanca, Jukka Malinen, Vesa Leppänen, Rubén Valbuena, Tuomo Kauranne, and Timo Tokola. "Valuation of growing stock using multisource GIS data, a stem quality database, and bucking simulation." Canadian Journal of Forest Research 48, no. 8 (August 2018): 888–97. http://dx.doi.org/10.1139/cjfr-2017-0172.
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Customer-oriented production as a sawmill strategy requires up-to-date information on the available raw material resources. Bucking is a process in which the tree stem is divided into products based on the roundwood user’s needs regarding products and their quality and dimensions. Optimization methods are employed in bucking to recover the highest value of the stem for a given product price matrix and requested length–diameter distribution. A method is presented here for assessing the value of harvestable timber stands based on their product yield. Airborne laser scanning, multispectral imagery, and field plots were used to produce timber statistics for a grid covering the target area. The statistics for the plots were generated from this grid. The value of the estimated tree list was assessed using a bucking-to-value simulator together with a stem quality database. Different product yield simulations in terms of volumes, timber assortment recoveries, wood paying capabilities (WPC) and value estimations based on the presented method, and extensive field measurements were compared. As a conclusion, this method can estimate WPC for pulpwood and sawlogs with root mean squared errors of 32.7% and 38.5%, respectively, relative to extensive field measurements.
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Feuereisel, J. "Game appreciation in legislative conditions of the Czech Republic." Journal of Forest Science 49, No. 12 (January 16, 2012): 575–79. http://dx.doi.org/10.17221/4726-jfs.
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An analysis was made of the present situation concerning game appreciation in the Czech Republic. A study was conducted into effective laws and regulations related to the valuation of nature. There is no legally binding directive for game appreciation in the Czech Republic at the present time. A questionnaire method (Contingent Valuation Method – CVM) was used to survey the activities of all 87 authorised experts in game management currently registered in the Czech Republic. It was found out that the game is appreciated as property, which contradicts to its legal status (res nullius). The most frequently used methods of game appreciation are a yield (demand) method and a comparative method. It is necessary to establish legal conditions under which the social value of all game species and other wildlife could be determined in order to ensure their survival and to strengthen the tools of their protection. The legislation in force authorises the Ministries of Agriculture and of the Environment of the Czech Republic to issue a relevant decree.
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Tan, Xin, and Sorin A. Tuluca. "Cash Conversion Cycle: Which One and Does It Matter?" International Journal of Accounting and Financial Reporting 9, no. 4 (October 11, 2019): 64. http://dx.doi.org/10.5296/ijafr.v9i4.15529.
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In the present study, we attempt to investigate the information validity of an important financial metric, the cash conversion cycle (CCC.) A survey of scholarly papers and textbooks reveals that multiple methods to compute the CCC components are employed. Based on a relatively large dataset for six public companies, we explore two of the different methods and their effect on the resulting CCC value. We find that the means of the time series of the two methods over 20 years have only mild statistically significant differences. However, there are important differences in several annual periods for some of the firms analyzed. Since financial managers and financial analysts use the CCC for decision-making, analysis and valuation purposes, the findings of this research represent a warning that the CCC computations might not yield reliable conclusions, as they are dependent on the input used in the calculations.
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Tonkes, Eliot, and Dharma Lesmono. "CONSISTENCY IN THE US CONGRESSIONAL POPULAR OPINION POLLS AND PREDICTION MARKETS." Journal of Prediction Markets 4, no. 2 (December 18, 2012): 45–64. http://dx.doi.org/10.5750/jpm.v4i2.477.
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Prediction and betting markets have evolved with contracts based on electoral outcomes and the traded prices provide a measure of speculators’ views on electoral outcomes. Conversely, popular opinion polls yield data which provide statistics on the public’s declared voting intentions. This article formulates a model to describe the stochastic evolution of opinion polls, and the resultant probability distribution of seats won in the US House of Congress. Based on standard methods from financial option pricing theory, we can then determine the theoretical value of observed contracts in the prediction markets. Our results show that qualitative predictions are obeyed, but there exist significant deviations between the actual prices traded in the Iowa Electronic Market (IEM) and our theoretical valuation under real-world expectations. Some explanations are provided, which are consistent with conclusions drawn by other authors who have studied electoral prediction markets.
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Santos, João Vasco, João Viana, Brecht Devleesschauwer, Juanita A. Haagsma, Cristina Costa Santos, Walter Ricciardi, and Alberto Freitas. "Health expectancies in the European Union: same concept, different methods, different results." Journal of Epidemiology and Community Health 75, no. 8 (January 15, 2021): 764–71. http://dx.doi.org/10.1136/jech-2020-213791.
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BackgroundHealthy life expectancy (HLE) is a population health measure that combines mortality and morbidity, which can be calculated using different methods. In this study, we aimed to assess the correlation, reliability and (dis)agreement between two estimates monitored in the European Union (EU), that is, the European Commission's HLE based on self-perceived health (SPH-HLE) and the Institute for Health Metrics and Evaluation's HLE based on disability weight (DW-HLE), by sex, and comparing these results with LE and proportion of life spent in good health (%GH).MethodsWe performed a retrospective study in the EU28 countries, between 2010 and 2017. The HLE methods differ in definition, measurement and valuation of health states. While SPH-HLE relies directly on one question, DW-HLE relies on epidemiological data adjusted for DW. Spearman’s r, intraclass correlation coefficient, information-based measure of disagreement and Bland-Altman plots were used to assess reliability, correlation and disagreement in HLE resulting from both methods and in LE or %GH measured by both institutions.ResultsCorrelation and reliability between SPH-HLE and DW-HLE were good (better for males), with low disagreement, and were even better for LE between both institutions. The HLE Bland-Altman plots suggest a variability range of approximately 6 years for both sexes, higher for females. There was also an increasing HLE difference between methods with higher average HLE for both sexes.ConclusionWe showed wide variations between both methods with a clear and different high impact on female and male HLE, showing a tendency for countries with higher health expectancies to yield larger gaps between SPH-HLE and DW-HLE.
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Schlereth, Christian, Bernd Skiera, and Agnieszka Wolk. "Measuring Consumers' Preferences for Metered Pricing of Services." Journal of Service Research 14, no. 4 (November 2011): 443–59. http://dx.doi.org/10.1177/1094670511418817.
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Metered pricing plans for services enable companies to increase their profits. Yet measuring consumer preferences for different forms of metered pricing is difficult, because metered prices simultaneously influence three consumer decisions: to purchase the service, to choose a particular pricing plan, and to use a particular quantity. These decisions strongly influence the number of customers that use the service, their usage, and profit. This article develops and validates augmented conjoint analysis methods that capture the interplay among these three decisions and allow for predicting the effects that different metered pricing plans have on consumer behavior and company’s profit. The empirical study reveals that the optimal two-part pricing plan yields 36–49% higher profits than optimal pay-per-use or flat rate pricing plans. Consumers' reactions to changes in metered pricing plans are very heterogeneous. The fixed fee of a two-part pricing plan strongly influences the number of subscribers but hardly influences their usage. In contrast, changes in marginal prices strongly affect consumers' usage but not their subscription. Data collected through ranking- and choice-based conjoint analysis yield comparable willingness-to-pay estimates and substantially outperform contingent valuation. Market researchers should also use pricing plan formats instead of usage formats to elicit the preferences for two-part pricing plans.
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Goyal, Manish Kumar, and Manas Khan. "Assessment of spatially explicit annual water-balance model for Sutlej River Basin in eastern Himalayas and Tungabhadra River Basin in peninsular India." Hydrology Research 48, no. 2 (June 4, 2016): 542–58. http://dx.doi.org/10.2166/nh.2016.053.
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In this paper, Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) water yield model, based on the Budyko framework which is relatively simple and requires less data, has been applied in Sutlej River Basin, located in the eastern Himalayas and in Tungabhadra River Basin, located in peninsular India. The effect of extrapolation of the lumped Zhang model to distributed model (InVEST) has also been analyzed. We also determined the most suitable method for calculating reference evapotranspiration among three different methods, i.e., modified Hargreaves, normal Hargreaves and Hamon's equation. It was found that modified Hargreaves method is the most suitable one under limited data conditions although in certain stations in Tungabhadra River Basin, this method is not applicable. We also observed that the InVEST model performed well in the Sutlej River Basin although a certain proportion of the basin is snow covered. The results from the study also show that errors in climate inputs will have significant influence on water yield as compared to other parameters, i.e., seasonality constant (Z) and evapotranspiration coefficient (KC). In the case of the crop dominated Tungabhadra River Basin, both seasonality constant (Z) and evapotranspiration coefficient (KC) have comparatively greater sensitivity as compared to the Sutlej River Basin.
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Adamikova, Eva, and Iveta Sedlakova. "Impact of creative accounting on the company value: Empirical study for Slovakia." SHS Web of Conferences 92 (2021): 02001. http://dx.doi.org/10.1051/shsconf/20219202001.
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Research background: Procedures and methods for determining the value of a company are different. The purpose of determining the value of the company, what results the company reports and also who performs the valuation has a significant influence on the choice of the method. Purpose of the article: The determination of the final value of the company is influenced by many factors, economic, technical, specifics of the company and also the date on which the value is calculated and who performs the evaluation. Methods: In expert practice in determining the value of the company, we work mainly with methods based on property and income principles (asset method, yield method). The basic material for calculating the value of a company is the company’s accounting, which, however, can often be influenced. There can be several purposes for distorting accounting information (financial statements). The most common reason is the reduction of the tax base, or artificial improvement of the achieved results. Creative accounting practices significantly affect the structure of the company as well as its financial results. Findings & Value added: The main goal of the paper is to quantify a few examples, which will contribute to reducing the economic result. Subsequently, we analyse these interventions how they can affect the resulting general value of the company determined by the expert and whether the expert is able to detect them.
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Howard, Scarlett R., Malika Nisal Ratnayake, Adrian G. Dyer, Jair E. Garcia, and Alan Dorin. "Towards precision apiculture: Traditional and technological insect monitoring methods in strawberry and raspberry crop polytunnels tell different pollination stories." PLOS ONE 16, no. 5 (May 14, 2021): e0251572. http://dx.doi.org/10.1371/journal.pone.0251572.
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Over one third of crops are animal pollinated, with insects being the largest group. In some crops, including strawberries, fruit yield, weight, quality, aesthetics and shelf life increase with insect pollination. Many crops are protected from extreme weather in polytunnels, but the impacts of polytunnels on insects are poorly understood. Polytunnels could reduce pollination services, especially if insects have access issues. Here we examine the distribution and activity of honeybees and non-honeybee wild insects on a commercial fruit farm. We evaluated whether insect distributions are impacted by flower type (strawberry; raspberry; weed), or distance from polytunnel edges. We compared passive pan-trapping and active quadrat observations to establish their suitability for monitoring insect distribution and behaviour on a farm. To understand the relative value of honeybees compared to other insects for strawberry pollination, the primary crop at the site, we enhanced our observations with video data analysed using insect tracking software to document the time spent by insects on flowers. The results show honeybees strongly prefer raspberry and weed flowers over strawberry flowers and that location within the polytunnel impacts insect distributions. Consistent with recent studies, we also show that pan-traps are ineffective to sample honeybee numbers. While the pan-traps and quadrat observations tend to suggest that investment in managed honeybees for strawberry pollination might be ineffective due to consistent low numbers within the crop, the camera data provides contrary evidence. Although honeybees were relatively scarce among strawberry crops, camera data shows they spent more time visiting flowers than other insects. Our results demonstrate that a commercial fruit farm is a complex ecosystem influencing pollinator diversity and abundance through a range of factors. We show that monitoring methods may differ in their valuation of relative contributions of insects to crop pollination.
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Muto, Hiroshi, Takumi Tanikawa, Takayoshi Terashita, and Katsuhiko Ogasawara. "Quantification of the subjective labour load of a filmless radiology system by the contingent valuation method: a pilot study." Journal of Hospital Administration 1, no. 1 (August 5, 2012): 30. http://dx.doi.org/10.5430/jha.v1n1p30.
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Background: A filmless radiology system, which implements a radiology information system and picture archiving and communication system, brings major changes in the work patterns of radiologists and radiological technologists. The purpose of this study was to prospectively quantify the subjective labour load of a filmless radiology system for radiologists and radiological technologists by the contingent valuation method (CVM) and to evaluate the economic labour value. Methods: The questionnaire survey included 14 radiologists and 46 radiological technologists. There was a 75% effective response rate with a total of 45 respondents. The subjective labour load of a filmless radiology system was quantified by the CVM as willingness to accept (WTA). The double-bound dichotomous choice approach was employed for the questionnaire format for WTA. Logistic regression analysis was used to identify the factors affecting WTA. Results: The median and mean WTA per month for radiologists were estimated to be 82,902 yen ($829) and 46,808 yen ($468), respectively. The median and mean WTA for radiological technologists were estimated to be 15,622 yen ($156) and 16,784 yen ($168), respectively. Logistic regression analysis showed promotional view (i.e., willingness to introduce computerization of medical information) as the only significant factor affecting WTA for radiological technologists (p < 0.05). Conclusions: The change from film-based- to filmless- radiology system would be acceptable providing that medical staff in the department of radiology think their labour changes would yield an increase of satisfaction equivalent to 1,430,000 ($14,300) -1,880,000 yen ($18,800).
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Babenko, O. I., V. P. Оleshko, and V. Y. Afanasenko. "THE PREDICTED GENETIC PROGRESS IN DAIRY CATTLE POPULATIONS USING A VARIETY OF METHODS FOR EVALUATION AND SELECTION OF ANIMALS." Animal Breeding and Genetics 51 (March 28, 2018): 27–34. http://dx.doi.org/10.31073/abg.51.04.
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Genetic progress in a herd of animals is due to the selection of four categories of pedigree animals: fathers of sires, mothers of sires, fathers of cows and mothers of cows. Extremely important role in genetic improvement of a herd plays selection of the sires for insemination of breeding stock which become the potential parents of cows. The selection of sires’ mothers, sires’ and cows’ parents provides 90-95% of the effect of selection in animal population, and massive selection of cows’ mothers only 5-10%. The main selection trait in а herd is milk production, therefore with the purpose of analyzing the effectiveness of selection by this trait defined pedigree value of 4 categories of pedigree animals, which influenced on the pace of improvement of the populations. Therefore, to accelerate genetic improvement of dairy cattle populations is necessary to increase the magnitude of the genetic benefits of parental animals and reduced generation intervals, which is the aim of our research. The average annual genetic progress through selection of four categories of pedigree animals in the herd of Holstein breed is 61.2 kg of milk per cow per year and the pace of genetic improvement of the herd – 0.81 %. In the population of Ukrainian Black-and-White Dairy breed, these figures are respectively 43.2 kg of milk and the pace of genetic improvement of the herd – 0.62 % Much more opportunities in raising the rate of genetic improvement can be achieved through the introduction of genomic (GS) or marker-assisted selection (MAS). Under the terms of the genomic breeding, final estimation of pedigree value of sires is carried out during 2.5 years in the contrast with traditional breeding, which involves the time for 5 years. Experts estimate the cost from the use of GS or MAS compared with conventional breeding are up to 92%, and the efficiency of selection is improved two times. Taking into account that data of productivity of animals are associated with genes of economically useful traits, the topical issue is the selection of the optimal polymorphic marker systems for their introduction into practice of breeding and assessment of genetic structure of cattle breeds. On the basis of our results of studies of the effect of QTL – gene, the complex model genotype for the selection of animals for the purpose of increasing milk yield in animals of Ukrainian Black-and-White Dairy breed is like this: CSNSАВ, GHLL, βLGАВ, Pit-1АВ; Holstein – CSNS AB, GHLV, βLGАA, Pit-1АВ. Comparison of model genotypes of Ukrainian Black-and-White Dairy and Holstein shows that there are differences in the combination of genotypes contributing to the best development of traits. Thus, the mass fraction of the protein, the model genotypes are identical at 75% in both breeds: by the yield, quantity of milk fat and protein and total milk fat and protein model genotypes match by 50%. Due to implementation of genomic evaluation and breeding of dairy cattle, the valuation period of pedigree animals was reduced significantly. Unlike conventional breeding, the introduction of genomic selection will reduce the genetic interval in the population of Ukrainian Black-and-White Dairy breed of sires’ fathers by 4.5 years, sires’ mothers by 4.6 years, cows’ fathers by 4.6 years and cows’ mothers by 2.9 years. In the population of Holstein cattle generation interval of sires’ fathers is reduced by 4.3 years, sires’ mothers by 4.5 years, cows’ fathers by 4.5 years, and cows’ mothers by 2.7 years. The results of our studies show that the rate of genetic improvement of dairy cattle population in the main breeding traits can be improved through the selection of animals by QTL-complexes. Thus, the selection of breeding stock based on a comprehensive model of genotype on yield gave an opportunity to improve pedigree value of the maternal cows at 155 kg compared to traditional breeding, and in the population of Holstein cattle at 246 kg. Only these factors allow genetic progress in milk yield in the population of Ukrainian Black-and-White Dairy cattle by 128.5 kg, which is 2.9 times more than the value of the actual genetic progress and in the population of Holstein cattle – 183.2 kg, which is three times more compared to the actual value of genetic progress for milk yield in this population. The contribution of the cows’ mothers to genetic progress increases. So, if at conventional breeding, the contribution of this category of pedigree animals was negative (-4.9%), selection on QTL complex is 3.2% and in the population of Holstein cattle 12%. If you apply the selection of other categories of pedigree animals (sires’ fathers, mothers and parents of sires) on QTL-complexes, which contribution in the genetic improvement of populations is 88.0–96.8%, the rate of genetic improvement of dairy cattle populations will greatly increase. Conclusion. To accelerate genetic improvement of dairy cattle populations it is necessary to use molecular genetic markers that control metabolic processes in the body.
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Ma, Li, Ruoxiu Sun, Ehsan Kazemi, Danbo Pang, Yi Zhang, Qixiang Sun, Jinxing Zhou, and Kebin Zhang. "Evaluation of Ecosystem Services in the Dongting Lake Wetland." Water 11, no. 12 (December 5, 2019): 2564. http://dx.doi.org/10.3390/w11122564.
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The Aeronautical Reconnaissance Coverage Geographic Information System (ArcGIS) 10.2 and Integrated Valuation of Ecosystem Services and Trade-offs (InVEST) model are used to comprehensively evaluate ecosystem services in the Dongting Lake Wetland, focusing on water yield, soil conservation, carbon storage, and snail control and schistosomiasis prevention. The spatial and temporal variations of these services, as well as their variations between different land use types in a period of 10 years from 2005 to 2015, are investigated, and the value of such services is then estimated and analyzed. The results of this study show various temporal and spatial trends in the ecosystem services, such as (1) the overall increase of all these services during the study period (although significant in some services, such as schistosomiasis patient reduction, by 86.8%; and, very slight in some others such as soil conservation, only by 0.02%); (2) different orders of the services values that are based on different land use types; and, (3) the temporal changes in the proportion of the values of different ecosystem services with respect to the total services value. Besides, it is concluded that the evaluation of ecosystem services of a certain wetland is heavily dependent on the characteristics of the area where the wetland is located, and the assessment indicators and methods should be selected based on such characteristics through the analysis of the results and a comparison with the findings of literature.
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Allen, Robert C. "Inferring Yields from Probate Inventories." Journal of Economic History 48, no. 1 (March 1988): 117–25. http://dx.doi.org/10.1017/s0022050700004174.
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An improvement on Mark Overton's method of computing crop yields from probate inventories is proposed. Harvesting costs are explicitly allowed for and a new procedure for eliminating cost-of-production valuations is offered. Applying these methods to a sample of Oxfordshire probate inventories generates higher yields than Overton's investigation of East Anglian inventories. The finding lends support to the view that most of the yield increase in early modern England occurred in the seventeenth century rather than the eighteenth.
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Mayer, Michael, Steven C. Bourassa, Martin Hoesli, and Donato Scognamiglio. "Estimation and updating methods for hedonic valuation." Journal of European Real Estate Research 12, no. 1 (May 7, 2019): 134–50. http://dx.doi.org/10.1108/jerer-08-2018-0035.
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Purpose The purpose of this paper is to investigate the accuracy and volatility of different methods for estimating and updating hedonic valuation models. Design/methodology/approach The authors apply six estimation methods (linear least squares, robust regression, mixed-effects regression, random forests, gradient boosting and neural networks) and two updating methods (moving and extending windows). They use a large and rich data set consisting of over 123,000 single-family houses sold in Switzerland between 2005 and 2017. Findings The gradient boosting method yields the greatest accuracy, while the robust method provides the least volatile predictions. There is a clear trade-off across methods depending on whether the goal is to improve accuracy or avoid volatility. The choice between moving and extending windows has only a modest effect on the results. Originality/value This paper compares a range of linear and machine learning techniques in the context of moving or extending window scenarios that are used in practice but which have not been considered in prior research. The techniques include robust regression, which has not previously been used in this context. The data updating allows for analysis of the volatility in addition to the accuracy of predictions. The results should prove useful in improving hedonic models used by property tax assessors, mortgage underwriters, valuation firms and regulatory authorities.
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Nafees, B., M. Stafford, S. Bhalla, and J. Watkins. "Health state utility and toxicities in metastatic lung cancer: A qualitative study." Journal of Clinical Oncology 24, no. 18_suppl (June 20, 2006): 16017. http://dx.doi.org/10.1200/jco.2006.24.18_suppl.16017.
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16017 Background: In metastatic lung cancer, it is expected that quality of life is impacted both by the efficacy and toxicity of therapy. Previous research has reported health states either based on response to therapy or on toxicity, but not in combination. Using methodology applied in breast cancer (Narewska 2005), we developed health state descriptions for advanced non-small cell lung cancer (NSCLC) for use in cost-utility analyses. Methods: An interview discussion and content validation guide was produced based on literature review and clinical input. Response to therapy was described as responding disease, stable disease, or progressive disease. The most common toxicities were selected based on randomized clinical trials. Descriptions of health states were reviewed by clinical specialists. Final health states will be piloted and then used in a societal-based valuation study using standard gamble technique. The contributory effect of disease state and toxicity will be estimated using a mixed model analysis and compared with the data from the previous breast cancer utility study. Results: Eight toxicities were identified: alopecia and grade 3/4 neutropenia, febrile neutropenia, hand-foot syndrome, gastrointestinal (diarrhea/vomiting), rash, stomatitis and fatigue. These were combined with response to therapy to yield 19 health states: 9 responding disease (one with each toxicity plus one with no toxicity), 9 stable disease (one with each toxicity plus one with no toxicity) and one progressive disease (toxicity not included). These health states were reviewed by 6 pulmonary oncologists and 3 specialist nurses. Conclusions: Development of health states that combine both efficacy and toxicity will be useful in evaluating the relative value of therapies for advanced NSCLC and comparison with other diseases. Input by clinical experts has provided validation for the proposed health states. Evaluation of these health states by members of society will provide appropriate perspective for economic evaluations. [Table: see text]
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Bhalla, S., B. Nafees, M. Stafford, and J. Watkins. "Health state utility and toxicities in metastatic lung and breast cancer: A qualitative study." Journal of Clinical Oncology 24, no. 18_suppl (June 20, 2006): 16021. http://dx.doi.org/10.1200/jco.2006.24.18_suppl.16021.
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16021 Background: In metastatic lung cancer, it is expected that quality of life is impacted both by the efficacy and toxicity. Previous research has reported health states either based on response to therapy or on toxicity, but not in combination. Using methodology applied in breast cancer (Narewska 2005), we developed health state descriptions for advanced non-small cell lung cancer (NSCLC) for use in cost-utility analyses. Methods: An interview discussion and content validation guide was produced based on literature review and clinical input. Response to therapy was described as responding disease, stable disease, or progressive disease. The most common toxicities were selected based on randomized clinical trials. Descriptions of health states were reviewed by clinical specialists. Final health states will be piloted and then used in a societal-based valuation study using standard gamble technique. The contributory effect of disease state and toxicity will be estimated using a mixed model analysis and compared with the data from the previous breast cancer utility study. Results: Eight toxicities were identified: alopecia and grade 3/4 neutropenia, febrile neutropenia, hand-foot syndrome, gastrointestinal (diarrhea/vomiting), rash, stomatitis and fatigue. These were combined with response to therapy to yield 19 health states: 9 responding disease (one with each toxicity plus one with no toxicity), 9 stable disease (one with each toxicity plus one with no toxicity) and one progressive disease (toxicity not included). These health states were reviewed by 6 pulmonary oncologists and 3 specialist nurses. Conclusion: Development of health states that combine both efficacy and toxicity will be useful in evaluating the relative value of therapies for advanced NSCLC and comparison with other diseases. Input by clinical experts has provided validation for the proposed health states. Evaluation of these health states by members of society will provide appropriate perspective for economic evaluations. [Table: see text]
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Frondel, Manuel, Stephan Sommer, and Lukas Tomberg. "Versorgungssicherheit mit Strom: Empirische Evidenz auf Basis der Inferred-Valuation-Methode." Zeitschrift für Wirtschaftspolitik 68, no. 1 (May 27, 2019): 53–73. http://dx.doi.org/10.1515/zfwp-2019-2002.
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Abstract Based on a survey among more than 5,000 German household heads, this article investigates their willingness to pay (WTP) for avoiding power outages using Contingent-Valuation-Methods (CVM). Alternatively, we ask respondents to estimate the WTP of a hypothetical household. This Inferred-Valuation-Method (IVM) is an approach introduced to reduce the hypothetical bias of stated WTP. Our empirical results indicate that, relative to the CVM, the IVM yields inflated WTP values, casting doubt on the validity of the IVM.
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Martin, Antony, Brendan Mulhern, Anum Shaikh, Sohaib Asghar, Jamie O'Hara, Gabriel Pedra, Eileen K. Sawyer, and Nanxin (Nick) Li. "Disease State Adaptation Experienced By Patients with Hemophilia: Literature Review and Expert Consensus." Blood 134, Supplement_1 (November 13, 2019): 5801. http://dx.doi.org/10.1182/blood-2019-124396.
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Introduction Hemophilia is an inherited disorder that causes a deficiency of a blood clotting factor resulting in a lifelong bleeding diathesis. People with hemophilia (PWH) may experience significant morbidity including potentially life-threatening hemorrhages and accumulation of joint damage and require burdensome and costly chronic treatment with factor replacement therapies. Gene therapies aimed at providing endogenous production of the missing clotting factor have the potential to yield significant health benefits for PWH. Economic evaluation is an important component for the commissioning and funding of new treatments like gene therapies. In economic evaluation, quality-of-life (QoL) is measured using health state utility valuations (HSUV). However, people with inherited and long-term health conditions may adapt to their given health state and adjust their expectations, therefore biasing the estimates of QoL/HSUV (i.e., disease state adaptation (DSA) or "disability paradox"; Albrecht and Devlieger, 1999). Here, we describe the first stages of research to evaluate DSA experienced by PWH. Methods To facilitate the selection of research methodology, a systematic litearure review (SLR) was performed to examine existing studies on QoL/HSUVs for PWH. A SLR was conducted to identify full-text studies by searching electronic databases (e.g. MEDLINE, Web of Science, Cochrane Library). Studies were included in the review using predefined inclusion/exclusion criteria for population, study type, language (English). Additionally, a manual search (last three years) for conferences abstracts was performed to capture the most up-to-date research. Findings from the SLR informed the conceptualisation of a study framework. The proposed research approach was then discussed with an expert panel consisting of clinicians, patient advocacy representatives, and Health Technology Assessment (HTA) specialists. Results The SLR identified 32 studies reporting HSUVs in hemophilia. The studies identified applied a mix of direct and indirect HSUV elicitation techniques. Two studies applied direct time trade-off methodology and the remaining 30 studies adopted indirect valuation methodologies. Utility values were found to vary by disease severity, musculoskeletal damage, bleed frequency, inhibitors, hemophilia subtype, treatment regimen, and adherence. Interestingly, HSUVs derived from valuations from the general public were found to be valued lower than those derived from PWH for the same health states. For example, in Carlsson et al. (2017), general public participants consistently rated significantly lower HSUVs for hemophilia disease states compared to PWH (range: 0.54-0.60 vs. 0.67-0.73), suggesting DSA might exist for PWH. Based on SLR findings, an expert panel discussed the feasibility and acceptability of an approach for conducting a preference elicitation study to directly evaluate DSA in PWH. Preference elicitation is an established research framework that is widely used in health economics. A comparative preference elicitation study was proposed to describe and quantify DSA by comparing responses from PWH, caregivers of PWH, and the general public. Conclusion Based on the SLR and expert panel inputs from clinicians, patients and HTA experts, an agreement was achieved about the research methodology for a new study directly assessing DSA experienced by PWH. Experts agreed that a comparative preference elicitation approach among PWH, caregivers of PWH, and the general public was fit-for-purpose for this research. The impact of DSA on QoL/HSUV should be characterized within economic evaluations of novel treatments with transformative impact on patients' lives, such as gene therapies. Disclosures Martin: HCD Economics: Employment. Mulhern:HCD Economics: Consultancy. Shaikh:HCD Economics: Employment. Asghar:HCD Economics: Employment. O'Hara:HCD Economics: Employment, Equity Ownership. Pedra:HCD Economics: Employment. Sawyer:uniQure Inc.: Employment. Li:uniQure Inc.: Employment.
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Boesso, Francine Fricher, Elisangela Marques Jeronimo, Karina Aparecida Furlaneto, and Rogério Lopes Vieites. "AVALIAÇÃO DE MÉTODOS DE EXTRAÇÃO DE SUCO DE JABUTICABA INTEGRAL EM FUNÇÃO DOS TEORES DE COMPOSTOS FENÓLICOS." ENERGIA NA AGRICULTURA 35, no. 3 (September 29, 2020): 457–67. http://dx.doi.org/10.17224/energagric.2020v35n3p457-467.
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AVALIAÇÃO DE MÉTODOS DE EXTRAÇÃO DE SUCO DE JABUTICABA INTEGRAL EM FUNÇÃO DOS TEORES DE COMPOSTOS FENÓLICOS
FRANCINE FRICHER BOESSO1; ELISANGELA MARQUES JERONIMO2; KARINA APARECIDA FURLANETO3; ROGÉRIO LOPES VIEITES4
1 Departamento de Horticultura, Faculdade de Ciências Agronômicas, Unesp de Botucatu, Avenida Universitária, n° 3780, Altos do Paraíso, Botucatu-SP, Brasil, 18610-034, franboesso@gmail.com.
2APTA, Polo Regional Centro Oeste, Avenida Rodrigues Alves, 40-40, Bauru-SP, 17030-000, elisangela.torres@sp.gov.br.
3 Departamento de Horticultura, Faculdade de Ciências Agronômicas, Unesp de Botucatu, Avenida Universitária, n° 3780, Altos do Paraíso, Botucatu-SP, Brasil, 18610-034, karinafurlaneto1@hotmail.com.
4 Departamento de Horticultura, Faculdade de Ciências Agronômicas, Unesp de Botucatu, Avenida Universitária, n° 3780, Altos do Paraíso, Botucatu-SP, Brasil, 18610-034, vieites@fca.unesp.br.
RESUMO: A jabuticaba é um fruto tropical muito apreciado sensorialmente e com significativo valor nutricional. Os elevados teores de compostos fenólicos, presentes principalmente na casca, apresentam benefícios à saúde, despertando o interesse do consumidor pelo consumo da fruta, bem como de seus derivados. Diante disso, objetivou-se estudar métodos de extração do suco de jabuticaba integral, para utilizá-lo posteriormente como matéria-prima no desenvolvimento de formulações de geleia, priorizando a valorização em relação aos teores de compostos fenólicos. O delineamento experimental aplicado foi o inteiramente casualizado (DIC), esquema fatorial 2 x 5, com cinco repetições. Foram avaliadas duas formas de utilização das frutas (jabuticaba inteira x jabuticaba esmagada) e cinco tempos de fervura das mesmas (5, 10, 15, 20 e 25 minutos de fervura). As amostras de suco de jabuticaba integral obtidos foram analisadas em relação às variáveis físico-químicas (rendimento, sólidos solúveis, acidez titulável, pH, açúcares redutores e açúcares redutores totais e cor instrumental) e bioquímicas (compostos fenólicos totais). Os resultados foram avaliados por análise de variância, cujas médias foram comparadas pelo teste de Tukey à 5% e regressão polinomial. Verificou-se que o melhor método de extração do suco de jabuticaba foi o tratamento que utilizou jabuticabas inteiras e quinze minutos de fervura.
Palavras-chaves: Myrciaria jaboticaba (Vell) Berg; compostos bioativos; rendimento.
EVALUATION OF JABUTICABA INTEGRAL JUICE EXTRACTION METHODS ACCORDING TO PHENOLIC COMPOUND CONTENTS
ABSTRACT: Jabuticaba is a tropical fruit very appreciated sensorially and with high nutritional value. The great amount of phenolic compounds, present mainly in the bark, have a beneficial effect on health, thus arousing the consumer's interest in fruit consumption, as well as its derivatives. Therefore, the objective was to study methods of extraction of whole jabuticaba juice, to use it later as raw material in the development of jelly formulations, prioritizing the valuation in relation to phenolic compounds contents. The experimental design applied was completely randomized (IHD), in a 2 x 5 factorial scheme, with five replications. Two forms of use of fruits (whole jabuticaba x crushed jabuticaba) and five boiling times (5, 10, 15, 20 and 25 minutes of boiling) were evaluated. The samples of whole jabuticaba juice obtained were analyzed in relation to physicochemical variables (yield, soluble solids, titratable acidity, pH, reducing sugars and total reducing sugars and instrumental color) and biochemical variables (total phenolic compounds). The samples of whole jabuticaba juice obtained were analyzed in relation to physicochemical variables (yield, soluble solids, titratable acidity, pH, reducing sugars and total reducing sugars and instrumental color) and biochemical variables (total phenolic compounds). The results were evaluated by analysis of variance, whose means were compared by tukey test at 5% and polynomial regression. It was found that the best method of extraction of jabuticaba juice was the treatment that used whole jabuticabas and fifteen minutes of boiling.
Keywords: Myrciaria jaboticaba (Vell) Berg; bioactive compounds; yield.
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Del Saz Salazar, Salvador, Francesc Hernández Sancho, and Ramón Sala Garrido. "Estimación del valor económico de la calidad del agua de un río mediante una doble aproximación: Una aplicación de los principios económicos de la Directiva Marco del Agua." Economía Agraria y Recursos Naturales 9, no. 1 (October 14, 2011): 37. http://dx.doi.org/10.7201/earn.2009.01.03.
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The main aim of the European Water Frame Directive is to achieve the good ecological status in all European waters by 2015 with a combined approach of different measures. In this study, two stated preference methods –contingent valuation and contingent ranking– have been applied to obtain the economic value of a hypothetical improvement of the water quality of a river. The comparison of both methods shows that contingent ranking yields higher values than contingent valuation, as found in previous literature. Lastly, the estimated values are aggregated in order to obtain the social benefits that steam from this environmental improvement.
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Wisen, Craig H., Kevin C. H. Chiang, Michael P. Pippenger, and James C. Collins. "Pricing A Pig In A Poke: Endogenous Valuations And Storage Unit Auctions." Journal of Business & Economics Research (JBER) 12, no. 4 (September 24, 2014): 323. http://dx.doi.org/10.19030/jber.v12i4.8859.
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Storage unit auctions have recently received widespread attention from reality shows and get rich easy business models. This study examines the pitfalls associated with winning storage unit auctions, commonly observed bidding strategies, participant behavior and auction methods. Storage unit auctions present a classic example of endogenous valuation using incomplete information and imperfect secondary markets. The examination of the contents of a storage unit auction yields a novel use for the facility and sheds light on the process that leads to a lien and sale.
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Petrus, Jeffrey, Jacob A. Babarinde, and Lepani Karigawa. "Analysis of Mechanisms for Sustainable Land Taxation in Lae City, Papua New Guinea." Urban Studies and Public Administration 3, no. 3 (July 2, 2020): p38. http://dx.doi.org/10.22158/uspa.v3n3p38.
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Following severe criticisms against perceived inefficiency and unfairness of land taxation system in Papua New Guinea, this paper appraises four mechanisms used for land tax assessment and tax collection in the country. The mechanisms investigated as part of a larger study are validity of previous valuation roll, determination of unimproved land value, professional acceptability of the valuation methods used, and whether planning approval had been secured for the improvements on land. The study is based on a questionnaire survey of 150 respondents, including state land leaseholders and officials of the Lands Department at Lae Municipality and the City’s Internal Revenue Commission. The hypothesis tested yields a Chi-Square Test value of 8.872 and a Probability Value (P Value) of 0.75 (75%), which is statistically significant at 0.01 level. These findings indicate that the Lae City Municipality has 75% chances of becoming sustainable in the foreseeable future, particularly if the recommendations made are thoughtfully implemented.
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González-Sepúlveda, Juan Marcos, and John B. Loomis. "Do CVM Welfare Estimates Suffer from On-Site Sampling Bias? A Comparison of On-Site and Household Visitor Surveys." Agricultural and Resource Economics Review 39, no. 3 (October 2010): 561–70. http://dx.doi.org/10.1017/s1068280500007516.
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The problem of endogenous stratification associated with on-site sampling has been overlooked in the Contingent Valuation Method (CVM). We find that using on-site samples of visitors overstates visitor willingness to pay (WTP) estimates relative to a household sample of visitors, and substantially overstates the unconditional population values. We provide two methods of correcting WTP of on-site samples. The uncorrected on-site sample CVM yields WTP of $132 per trip, while visitor WTP obtained from a random sample of households had a value of $66 per trip. Adaptation of choice-based sampling correction estimator to the on-site CVM data yields $73 per trip, not statistically different from the visitor value from the household survey, but significantly different from the uncorrected on-site sample value.
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LEUNG, TIM, and YANG ZHOU. "A TOP-DOWN APPROACH FOR THE MULTIPLE EXERCISES AND VALUATION OF EMPLOYEE STOCK OPTIONS." International Journal of Theoretical and Applied Finance 23, no. 02 (March 2020): 2050004. http://dx.doi.org/10.1142/s0219024920500041.
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We propose a new framework to value employee stock options (ESOs) that capture multiple exercises of different quantities over time. We also model the ESO holder’s job termination risk and incorporate its impact on the payoffs of both vested and unvested ESOs. Numerical methods based on Fourier transform and finite differences are developed and implemented to solve the associated systems of PDEs. In addition, we introduce a new valuation method based on maturity randomization that yields analytic formulae for vested and unvested ESO costs. We examine the cost impact of job termination risk, exercise intensity and various contractual features.
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Spicka, Jindrich, and Jiri Hnilica. "A Methodical Approach to Design and Valuation of Weather Derivatives in Agriculture." Advances in Meteorology 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/146036.
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The paper deals with weather derivatives as the potentially effective risk management tool for agricultural enterprises seeking to mitigate their income exposure to variations in weather conditions. Design and valuation of the weather derivatives is an interdisciplinary approach covering agrometeorology, statistics, mathematical modeling, and financial and risk management. This paper first offers an overview of data sources and then methods of design and valuation of weather derivatives at the regional level. The accompanied case study focuses on cultivation of cereals (wheat and barley) in the Czech Republic. However, its generalizability is straightforward. The analysis of key growing phases of cereals is based on regression analysis using weather indices as the independent variables and crop yields as dependent variables. With the bootstrap tool, the burn analysis is considered as useful tool for estimating uncertainty about the payoff, option price, and statistics of probability distribution of revenues. The results show that the spatial and production basis risks reduce the efficiency of the weather derivatives. Finally, the potential for expansion of weather derivatives remains in the low income countries of Africa and Asia with systemic weather risk.
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Martínez-Carrasco, Laura, Margarita Brugarolas, Africa Martínez-Poveda, and Juan J. Ruiz-Martínez. "Comparing hypothetical versus non-hypothetical methods for measuring willingness to pay in a food context." Spanish Journal of Agricultural Research 13, no. 4 (December 2, 2015): e0109. http://dx.doi.org/10.5424/sjar/2015134-8233.
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<p>Choosing a valid procedure to measure willingness to pay (WTP) is crucial for designating optimum price policies or for evaluating the demand for new products. This study compares two methods for obtaining WTP in a food context: a random <em>n</em><sup>th</sup> price auction and an open-ended contingent valuation (CV) question. Participants were regular salad tomato buyers of Alicante and they were randomly assigned to one of the two treatments. The products about which they would show their WTP were traditional tomato varieties. Both treatments were divided into three stages: in the first stage the only available information was a reference price for the tomatoes. In stages 2 and 3 we revealed the local origin and the organic grown of the tomatoes respectively. Our results show that in the auction the percentage of participants willing to pay the same or more than the reference price was between 20 and 30%. In the CV method this percentage was between 40 and 65%. The mean WTP in the auction, considering the whole of the individuals, was situated between 1.90 and 2.13 €/kg. These same results obtained through the CV were situated between 2.54 and 3.21 €/kg. The results confirmed the findings of previous papers in which the hypothetical bias of CV was clarified because it yields higher values for WTP than the auction, especially when referring to the number of individuals willing to pay more. Additionally, hedonic price models were estimated for the prices obtained by both methods with the result that in all the models, WTP was directly related to the price paid for the latest purchase of tomatoes.</p>
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Wertenbroch, Klaus, and Bernd Skiera. "Measuring Consumers' Willingness to Pay at the Point of Purchase." Journal of Marketing Research 39, no. 2 (May 2002): 228–41. http://dx.doi.org/10.1509/jmkr.39.2.228.19086.
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Economists, psychologists, and marketing researchers rely on measures of consumers' willingness to pay (WTP) in estimating demand for private and public goods and in designing optimal price schedules. Existing market research techniques for measuring WTP differ in whether they provide an incentive to consumers to reveal their true WTP and in whether they simulate actual point-of-purchase contexts. The authors present an empirical comparison of several procedures for eliciting WTP that are applicable directly at the point of purchase. In particular, the authors test the applicability of Becker, DeGroot, and Marschak's (1964) well-known incentive-compatible procedure for assessing the utility of lotteries to measuring consumers' WTP. In three studies, the authors explore the reliability, validity, and feasibility of the procedure and show that it yields lower WTP estimates than do non-incentive-compatible methods such as open-ended and double-bounded contingent valuation. They show experimentally that differences in WTP estimates arise from the incentive constraint rather than the cognitive effort required in responding. They also control for strategic response behavior.
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Verbych, I. V., and O. V. Medvid. "EFFICIENCY OF THE USE THE CROSSBREEDING OF UKRAINIAN BLACK-AND-WHITE DAIRY AND SWISS CATTLE IN THE STATE STUD FARM "PASICHNA"." Animal Breeding and Genetics 61 (May 27, 2021): 35–48. http://dx.doi.org/10.31073/abg.61.05.
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Goal. To study the influence of intermediate crossing on the level of dairy productivity, qualitative milk indicators, exterior features and resistance of the body of pureorgain and local animals. Methods. Selection and genetic analysis, comparative, statistical. The results. Scientific and production studies were conducted on the basis of a tribal factory of the State Enterprise "Pasichnya" IKSGP NAAN "of the StarosinyaVsky district of the Khmelnytsky region in the chains of distinct animals of the Podilsky factory type of Ukrainian Black-and-White dairy (UCHRMP) and local animals derived from the crossing of the BPRMP cows with Bojabs of the Shvitsky breed. According to the results of experimental studies, it has been found that local cows-first-bristles are somewhat inferior to the purest animals of the Ukrainian Black-and-White dairy breed by the magnitude of the NADA (93.8 kg), but it is compensated by milk quality (fat +0.26%, protein +0.19%), where in the general yield of dairy fat (+9.5 kg) and protein (+6.4 kg), they are favorably different from its purgatory rior. The analysis of the results of the reproductive capacity of cows shows that local animals were first fruitfully inseminated at the age of 545 days and the duration of fertility was 283 days, at that time, purely meters were inserted at the age of 567 days, and the duration of the sharing was 281.5 days. Service-period in the cows-first-born of genotypes, respectively, amounted to 97 and 112 days. The obtained data for the morphological and functional properties of the cow-first-prints show that the assessed number of both groups meets the needs of target standards on technological features and have high indicators of the studied functional properties. Comparative analysis of exterior valuation indicators between the studied groups shows that local cows have higher rates over latitudinal gates, in particular, by breast width and width in the ice, at that time inferior to the children's rior in the rectors of height in the racing, in the area of the torso. and hammer. In the study of natural resistance in the studied cows it has been established that the estimated animal groups are characterized by a sufficiently high level of protective functions of the body and adaptation capacity to technological conditions, which creates good opportunities for further effective selection. The general assessment of the natural resistance of cows-firstbody by morphological and biochemical parameters of blood, phagocytic, bactericidal and lysozymic activity showed that local cows according to Method VE Chumachenko and others. (1990) have a natural resistance to 3 points (61) higher than in their pure-breeding rior (58 points). Conclusions. Results of analysis of dairy performance of local cows-first-birthsters derived from the crossing of Ukrainian Black-and-White breeds with bulls of the Shvitskaya breed showed that the data of the animal though inferior to the christening rior of the Ukrainian Black-and-White dairy breed by the magnitude of the NADA but this difference is compensated by the quality of milk, where The total output of dairy fat and protein, they are favorably different from pureoral analogues. By indicators of reproducible ability, it has been found that local animals were first crazy at the age of 823 days that on 21 days earlier than puredom and 15 days they have a smaller service period. An analysis of the results of the estimation of morphological and physiological properties of the elder showed that there are no significant differences in the investigated groups of primary differences. All animals correspond to technological requirements. The exterior evaluation of the investigated groups of the firstborn showed that purely cows, having higher rates in the elevation in the roll, in the height in the ice and a contrary length of the trunk and the intensity, but inferior to the latitude gauge: the width of the breast, width in the machaches and width in the machaches and width in the machach. Animal estimation according to natural resistance indicators found that animals of both groups have a sufficiently high level of protective functions of the body and adaptation capacity to technological conditions that creates good opportunities for further effective selection.
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Huang, Chin-Huang, and Chun-Hung Lee. "Consumer willingness to pay for organic fresh milk in Taiwan." China Agricultural Economic Review 6, no. 2 (April 29, 2014): 198–211. http://dx.doi.org/10.1108/caer-04-2012-0033.
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Purpose – The Fresh Milk Logo certifies that dairy product sold in Taiwan really is fresh milk. However, the logo represents only a moral pledge by the manufacturer. No method exists for inspecting whether products are fresh milk or reconstituted milk, and the label does not represent a commitment to the same level of quality and consumer health protection as found in organic foods. The purpose of this paper is to analyze consumer perceptions of organic certified agricultural standards (CAS) and estimates consumer willingness to pay (WTP) a premium should the Fresh Milk Logo be transformed into an organic CAS certified label. Design/methodology/approach – Exploratory factor analysis is adopted to extract the main determinants of respondent perceptions and preferences. Additionally, the double-bounded dichotomous choice of the contingent valuation method (CVM) and survival function is used to measure consumer WTP a premium for organic fresh milk. Findings – Consumer consumption preferences for buying fresh milk extracted four main factorial dimensions: Fresh Milk Logo, price/promotion, organic, and product/brand. Respondents are willing to pay US$21.95 extra per year to buy organic CAS milk and the factors affecting WTP are “Fresh Milk Logo” and “organic”. Research limitations/implications – The problems of the CVM include hypothetical and starting point for price bidding. The double-bounded dichotomous choice contingent valuation model and pre-testing can reduce the biases. The survival function is more flexible, yields more information and permits assumptions regarding parametric distributions without additional costs. The collaboration of survival function with the double-bounded method produces a reliable result that incorporates fewer statistical errors. Practical implications – Consumers are willing to pay a premium for fresh milk with an organic CAS label that certifies its good quality and safety. Social implications – Marketing managers can use the study findings to develop effective marketing strategies and refine advertising campaigns to promote organic fresh milk to attract more consumers. Originality/value – Organic food labels certify food safety, and are associated with the trend toward increasing awareness of environmental and health issues. Perception of organic food labels are introduced into double-bounded dichotomous choice CVM to estimate consumers’ WTP, an approach which has successfully dominated traditional methods, using Likert scale-type measurement.
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Boeraeve, Fanny, Marc Dufrêne, Nicolas Dendoncker, Amandine Dupire, and Grégory Mahy. "How Are Landscapes under Agroecological Transition Perceived and Appreciated? A Belgian Case Study." Sustainability 12, no. 6 (March 21, 2020): 2480. http://dx.doi.org/10.3390/su12062480.
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An increasing number of agricultural transition initiatives are taking place, seeking more autonomy and resilience on the farms. This undeniably reshapes the landscape and the delivery of ecosystem services (ES). To date, little research includes the knowledge and perceptions of local communities on rural landscapes in agricultural transition. Yet, farmers shape the landscape and ES delivery, and local inhabitants are directly impacted. The present work aims at assessing the extent to which locals (local inhabitants and farmers) appreciate and view landscapes undergoing agricultural transitions. To do so, questionnaires were submitted to locals enquiring about appreciation and ES perceptions of transitioning landscapes. These landscapes were shown in manipulated photographs simulating an agroecological landscape, a conventional agriculture landscape, and landscapes including each isolated agroecological practice (resulting in six ‘scenarios’). In order to put locals’ perceptions in perspective, the same questionnaire was submitted to ‘ES experts’, and ES perceptions were compared to field-based ES measurements in agroecological and conventional parcels of the same study region. The results show that locals and ES experts appreciate and perceive these scenarios similarly. The agroecological scenario was seen as the most appreciated and the one delivering the most ES, while the conventional one was the least appreciated and seen as the one delivering the least ES. These perceptions of ES delivery partially correspond to the ES field measurements, which showed a similar productivity within agroecological and conventional parcels and more regulating ES in agroecological parcels. We discuss how our results call for the assessment of the multi-performance of agricultural systems in terms of ES rather than focusing on yield only, and how future research addressing agroecological transition should rely on integrated valuations and mixed methods to better embrace the complexity of such transitioning systems.
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Petersen, Mitchell A. "Teuer Furniture (B): Multiples Valuation." Kellogg School of Management Cases, January 20, 2017, 1–16. http://dx.doi.org/10.1108/case.kellogg.2016.000340.
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Teuer Furniture is a privately owned, moderately sized chain of upscale home furnishing showrooms in the United States. By the end of 2012, it had regained its financial footing and a number of long-term investors, including several of Teuer’s original non-management investors, now want to sell their shares. At the request of the board, Jennifer Jerabek, the chief financial officer of the company, and her team put together an extensive valuation of Teuer based on a discounted cash flow analysis. When the model was presented to investors, a number of them disagreed with the results. Some investors considered the value too high; others considered it too low. Not surprisingly, some of the differences of opinion were correlated with whether or not the investors wanted to sell their shares of Teuer. Jerabek was instructed to build a valuation of Teuer using a multiples approach instead.After reading and analyzing the case, students will be able to: Estimate the value of a firm using a multiples approach Select an appropriate group of comparable firms and defend the logic behind the selection Select a correct set of valuation ratios and defend the logic behind the selection Compare the valuations produced by a multiples and DCF approach and if the valuations do not match, explain why the two methods yield different valuations
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Khaliq, Abdul, Hafiz Basheer Ahmad, Muhammad Ashfaq Nadeem, Arshad Mehmood, Naeem Ahmad, Muhammad Yasin, and Rashad Ul Sher. "Valuation of Weed Control Methods by using Inter Row Rotary Weeder in Sugarcane Crop." Indian Journal Of Agricultural Research, OF (July 24, 2020). http://dx.doi.org/10.18805/ijare.a-549.
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Background: Weeds are one of major threats to crop yield and quality. Weeds compete with cane crop and reduce the yield significantly in a very short period. Planned use of all available farm resources leads to integrated control strategy. The current study aimed to study the use of inter row rotary weeder for integrated weeds management to control population dynamics of weeds in sugarcane crop. The objective of experiment is to find out economical, feasible and easy to use approach to minimize the weed density below the threshold level in sugarcane crop and to minimize the use of chemicals for weeds control to promote organic farming. Method: In this research experiment, at Sugarcane Research Institute, Faisalabad during 2017 and 2018, the treatment includes viz. Application od Click (atrazine and acetochlor) @ 3.75 Liter per hectare as Pre-emergence, Ametryn + Atrazine 80 W.P @ 2.50 kg per hectare as post-emergence, Machanical Inter-culture with Rotary weeder and cultivator plough and earthing up. These treatments in different combinations were compared with control. Results: The application of Pre-emergence weedicide Click (atrazine and acetochlor) @ 3.75 Liter per hectare + Inter culture with Rotary weeder 50 days after planting (DAP) + Inter culture with cultivator plough before earthing up (100 DAP) produced significantly higher cane yield of 105 t. ha-1 and highest net benefits per hectare of Rs. 156250/-. The lowest cane yield of 70 t. ha-1 was noted from the experimental units with Weedy check / control. If farmers use this approach, the use of post emergence weedicides will be minimized and will encourage organic farming with safe and healthy environment.
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Adámiková, Eva, Tatiana Čorejová, and Lenka Môcová. "DETERMINANTS OF TRANSPORT COMPANY VALUE AND THE SELECTION OF VALUATION METHODS." CBU International Conference Proceedings 7 (September 30, 2019). http://dx.doi.org/10.12955/cbup.v7.1334.
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The development of a company significantly influences its final value. The value of a transport company can be determined for various legal acts, which also influence the selection of valuation methods. The view of the transport company may differ, depending on whether it is seen by investors or the company owners. Methods of evaluating a transport company, but also of all companies in expert practice, usually follow methodological procedures outlined in the legal standards. These methods are based on basic principles, namely the asset principle, the yield principle, the combined principle, and the market principle. These principles also include other methods of determining the company's value. Each method has its own specifics, a modification of only one model parameter changes the entire company value. The aim of this paper is to analyze the input data and their impact on the value of the transport company from the perspective of various methods. The paper shows the impact of the change in the rate of capitalization and g - the sustainable growth rate and the significant impact of the continuing value on the general value of the company.
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Harris, Robert S. "A Comparison of the Weighted-Average Cost of Capital and Equity-Residual Approaches to Valuation." Darden Business Publishing Cases, January 20, 2017, 1–5. http://dx.doi.org/10.1108/case.darden.2016.000005.
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This technical note compares two methods of treating debt usage in discounted-cash-flow valuation of investment projects or companies. The note demonstrates that the approach using weighted average cost of capital (WACC) and the approach using equity residual (ER) yield equivalent results if consistent assumptions are used. General features are illustrated with specific examples, including a spreadsheet.
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Kompaniets, Maxim, and Inna Kysilyova. "FEATURES OF THE FORMATION AND VALUATION OF INSURANCE RESERVES." Pryazovskyi Economic Herald, no. 3(26) (2021). http://dx.doi.org/10.32840/2522-4263/2021-3-21.
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The purpose of the paper is research of practice of making insurance reserves of the insurance companies in Ukraine and summarizes the ways of improvement of methods for their calculation with the purpose of increasing management efficiency of an organization. The article addresses the characteristics and economic nature of certain types of technical reserves of insurance organizations in particular the unencumbered premiums reserve, the loss reserve and the catastrophe reserve, and the characteristics of their formation. Major methods for calculating the reserve of unencumbered premiums reviewed and recommended adjustment to method 1/36 , and use of the reserve calculation method of unencumbered premiums, which takes into account inflation ratio. The method of calculation and formation of the loss reserve is considered as well as the characteristics of the reserve for past but undeclared losses and reserves for asserted but unresolved losses. The system of indicators of sufficiency of insurance reserves of insurance organizations was analyzed; the calculation formulae and recommended values are given. Insurance reserves sufficiency ratios refers to the status of insurance reserves and determine the adequacy of insurance reserves to the risks taken into insurance. Sufficiency ratio (based on premiums) and sufficiency ratio (based on payments) determine, respectively, the upper and lower limits of insurance reserves. For conducting research and substantiation of relevant conclusions, the indicators of dynamics and structure of insurance reserves of insurance company JSC IC “INGO” are analyzed. Sufficiency ratios for insurance reserves of JSC IC “INGO” are also calculated and Evaluation of the company’s insurance reserves has been performed. The results of the study can be applied by the heads of the financial divisions of insurance companies for the development of tactical and strategic decisions that allows to yield optimal condition of insurance reserves and their reliable valuation of insurance company and to perform the quick analysis of the state of insurance reserves of insurance company.
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Paździor, Artur. "DETERMINING THE COST OF EQUITY IN THE CONDITIONS OF CRISIS." АНАЛИ ПОСЛОВНЕ ЕКОНОМИЈЕ 1, no. 9 (December 15, 2016). http://dx.doi.org/10.7251/ape0913090p.
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Changes on financial markets caused by subprime crisis in the United States andrelated problems in the real sphere of many European economies have initiated adiscussion on the factors of business value, also in the area of methods of determiningthe cost of equity. Known and commonly used, especially on poorly developedmarkets, methods in the period of a traditional business cycle required manyadjustments. This situation could have caused increase in the role of subjective factorsin business valuation. The article, apart from known methods, presents a new conceptof determining the cost of equity, adequate to the present turbulent market conditions.It allows determining more precisely the cost of equity of companies operating in theconditions of unstable economies. In these economies the use of known methods ofcalculating the cost of equity is either impossible or requires the application of manyadjustments that often do not guarantee correct result. An advantage of the presentedmethod over other models (even Bond Yield Plus) is that risk premium, related toinvestments in equity, is determined in a manner preventing discretional adoption ofits amount. The previous practice indicates that often the amount of this premium wasdetermined at a level expected by the customers. The proposed method limits impactof subjective factors on business value, which often distort the actual business value.
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Othman, Mohd Syaubari, and Ahmad Yunus Kassim. "Kesahan dan Kebolehpercayaan Instrumen Komposisi Pengajaran Guru Pendidikan Islam Sekolah Rendah yang Mengintegrasikan Kemahiran Berfikir Aras Tinggi (KBAT) Menerusi Pengajaran Akidah." Sains Humanika 10, no. 3 (August 20, 2018). http://dx.doi.org/10.11113/sh.v10n3.1297.
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This study aims to identify valid and reliable instrument for teaching Islamic Education teachers in integrating primary KBAT using quantitative and qualitative analysis of the mixture (mixed method). This instrument consists of a questionnaire, review of observation and interview protocol that has been modified by researchers to ensure conformity with the objectives set. The instrument is executed based on predetermined procedures and meet measurement standards for validity and reliability. Researchers conducted a content validity and face validity of the questionnaire were constructed either by defining constructs, verification specialists and factor analysis of quantitative methods for the validity qualitatively and implemented trigulasi, expert evaluation and revision by the participants of the pilot study. The overall findings indicate a high level of validity after several improvements have been implemented. Share insights for reliability, Cronbach alpha values above 0.90 indicate for each item that has been determined, while for qualitative research, analysis using the yield valuation cohen kappa 0.87 to 0.83 for the interview and observation. This shows the validity and reliability of the research instrument and can be passed on to the actual review
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Napolitano, Fabio, Daniel Mota-Rojas, Giuseppe De Rosa, Adolfo Guadalupe Alvarez Macias, Ada Braghieri, Aldo Bertoni, Karla Flores, et al. "Advances and Perspectives in Research on Buffalo Milk Production and Mozzarella Cheese." Agro Productividad 14, no. 6 (July 22, 2021). http://dx.doi.org/10.32854/agrop.v14i6.1868.
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Objective: To conduct a bibliographic review of the inventory and distribution of the buffalo herd, leading dairy buffalo breeds, and to map the main research topics for dairy buffaloes, emphasizing feeding methods and their effects on milk and mozzarella cheese quality.Design/Methodology/Approach: Analysis of the main research topics on dairy buffalo, through a wide review of specialized journals.Results: The production and processing of buffalo milk has gained relevance in recent years along different latitudes thanks to its nutritional qualities and the international regard for products such as mozzarella cheese. The main studies are carried out in Asia, Italy, and Brazil, emphasizing that diets are a determining factor in yield and quality of milk and its derivatives, but that genetics, environment, and animal managementare what in the end model these characteristics.Study Limitations/Implications: To conduct further research on dairy buffalo, especially in Mexico, where it has important development opportunities.Findings/Conclusions: The bibliographic body of work presents practical restrictions, advances are recognized, and also the need to further research topics such as reproduction and animal welfare, management and valuation of buffalo milk and its derivatives, with the opportunity to explore organic production.
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List, John A., Paramita Sinha, and Michael H. Taylor. "Using Choice Experiments to Value Non-Market Goods and Services: Evidence from Field Experiments." Advances in Economic Analysis & Policy 5, no. 2 (January 13, 2006). http://dx.doi.org/10.2202/1538-0637.1132.
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Abstract Critics of stated preference methods argue that hypothetical bias precludes survey techniques from providing reliable economic values for non-market goods and services, rendering estimation of the total economic benefits of public programs fruitless. This paper explores a relatively new methodology to obtain the total value of non-market goods and serviceschoice experimentswhich conveniently provide information on the purchase decision as well as the characteristic value vector. The empirical work revolves around examining behavior in two very different field settings. In the first field study, we explore hypothetical bias in the purchase decision by eliciting contributions for a threshold public good in an actual capital campaign. To extend the analysis a level deeper, in a second field experiment we examine both the purchase decision and the marginal value vector via inspection of consumption decisions in an actual marketplace. In support of the new valuation design, both field experiments provide some evidence that hypothetical choice experiments combined with cheap talk can yield credible estimates of the purchase decision. Furthermore, we find no evidence of hypothetical bias when estimating marginal attribute values. Yet, we do find that the cheap talk component might induce internal inconsistency of subjects preferences in the choice experiment.
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Gu, Xiaorong. "Afterword: The value of children in the Global South: Current contributions and future directions." Current Sociology, April 15, 2021, 001139212110061. http://dx.doi.org/10.1177/00113921211006108.
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This Afterword to the Current Sociology Monograph on ‘The Value Turn in Childhood Sociology’ reflects on how this issue adds fundamental insights to our understanding not only of children’s social positions, the roles they play and their life experiences from the perspectives of various stakeholders in a variety of Southern societies, but also of the heterogeneous, hybrid and complex trajectories of modernization in these societies. The articles contribute to existing scholarship in at least three ways. First, they illustrate the productivity of the value turn in childhood sociology by linking children’s social roles, experiences and positions in society with multi-level social mechanisms (inclusive of family, educational institutions, social groups and organizations, and the state) in culturally and socially contextualized analyses. Second, the value turn proposed in this monograph attempts a critical intervention to de-center the previous Western-centric knowledge production in childhood sociology. The articles have contributed towards this objective by foregrounding Southern empirical realities and spearheading grounded theorization based on Southern experiences. Finally, the articles showcase a plethora of research methods and techniques in a variety of research paradigms, including critical discourse analysis, in-depth interviews, ethnographic research, historical analysis and mixed-methods research, which yield rich, profound and nuanced findings about the valuation of children in different contexts. I conclude this closing article by deliberating on future directions for the research agenda on the value of children in sociology.
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Lagerlöf, Helena, Teun Zuiderent-Jerak, and Morten Sager. "Epistemological deliberation: the challenges of producing evidence-based guidelines on lifestyle habits." Evidence & Policy: A Journal of Research, Debate and Practice, 2021. http://dx.doi.org/10.1332/174426421x16149619907286.
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Background: Promotion of healthy behaviour is increasingly highlighted worldwide as a way to improve public health, prevent disease incidence, and decrease long-term costs for healthcare. In Sweden the National Board of Health and Welfare (NBHW) used the well-established format of national guidelines to facilitate a more widespread use of approaches for promotion of healthy lifestyle habits in healthcare.Aims and objectives: The aim of this case study was to explore the tensions between public health knowledge and the tenets of evidence-based medicine (EBM) in the creation of national guidelines on lifestyle habits.Methods: Based on data from interviews with guideline professionals and the collected documents of the national guidelines, we examine how NBHW negotiated the conflicts between public health knowledge and the format of national guidelines. An analytical model based on approaches from the sociology of standardisation is used to explore the ramifications of these negotiations.Findings: In line with findings in the sociology of standardisation, we show how conflicts between public health knowledge and the format of national guidelines result in both having to yield on certain points. This, we claim, results in compromise, but perhaps also compromised notions of validity and causality.Discussion and conclusion: This case offers important learning about the general compatibility of public health and currently dominant methods of EBM. Important crossroads are outlined, concerning how validity and causality are configured in public health guidelines and how these require extensive epistemological deliberation.<br />Key messages<br /><ul><li>Epistemological commitments on validity and causality within public health have been compromised to fit the format of national guidelines;</li><br /><li>Similarly, the format of national guidelines has been subordinated to the public health valuation of risk assessments;</li><br /><li>Integrating public health into an EBM format requires extensive epistemological deliberation.</li></ul>
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Loubiere, S., A. Tinland, O. Taylor, A. Loundou, P. Auquier, and J. Ornelas. "Europeans’ willingness to pay for ending homelessness: a contingent valuation study." European Journal of Public Health 29, Supplement_4 (November 1, 2019). http://dx.doi.org/10.1093/eurpub/ckz185.087.
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Abstract Objective In Europe, 4 million people were homeless in 2009. The Staircase model of care targeted mental health, drug rehabilitation and housing readiness yields poor long-term housing results. Western countries are investing in a new model, Housing First (HF), which yields better clinical and social results. We aim to explore how much the European citizens are willing to pay for the HF model and what are the determinants of this valuation. Methods A nationally representative telephone survey conducted in 2017, targeted European adult citizens from France, Ireland, Italy, Netherlands, Portugal, Spain, Poland and Sweden. Respondent’s willingness-to-pay (WTP) (n = 5,631) for HF model was assessed through a contingent valuation method with bidding algorithm. Multivariate analyses using two-part models with a cluster and weighted design were conducted to predict: 1/ respondents’ refusal or incapacity to pay for the HF model; 2/ willingness-to-pay (continuum) for the HF model. Results 42.3% of respondents were willing to pay more taxes to reduce homelessness through HF model; 30.3% were protest zero (don’t want to pay taxes (either contested the payment vehicle-taxes- or the survey instrument); huge differences being observed between countries (P<.001). Respondents were willing to pay €57 (+/- 9) through annual taxes for the HF model. Respondents with higher educational attainment, paying taxes on income, reporting positive attitudes about homelessness or practices to reduce homelessness (donations, volunteering), and those residing in a country with higher share of social protection expenditures on family benefits or higher at-risk-of-poverty rate were more likely to value the HF model. Perspective These results provide key stakeholders with an understanding of the level of support from the general population for the Housing First model; especially since the determinants of this valuation were studied according to the social and environmental context of each country. Key messages More than 42% of European citizens reported to be willing to pay for reversing homelessness. More than a three quarter of European citizens thought that Government spending on Homelessness is too little.
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Brozdowski, Jakub, Boguslawa Waliszewska, Sasa Gacnik, Metka Hudina, Robert Veberic, and Maja Mikulic-Petkovsek. "Phenolic composition of leaf and flower extracts of black cherry (Prunus serotina Ehrh.)." Annals of Forest Science 78, no. 3 (August 3, 2021). http://dx.doi.org/10.1007/s13595-021-01089-6.
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Abstract Key Message The best yields in the extraction of hydroxycinnamic acids, flavanols and total phenolics from black cherry flowers were obtained with 40% ethanol and the poorest with water. A 30% higher content of total phenolics was obtained from leaves by using methanol rather than water. Context Black cherry (Prunus serotina Erhr.) is widespread in Europe. Because it is an invasive species, most research has been aimed at trying to find a method to remove this shrub from forests. The incentive for the development of the research was that we were trying to find a possible folk use of black cherry leaves and flowers. Aims The aim of this work was to study the detailed phenolic profile of extracts of P. serotina leaves and flowers. Methods Three types of extracts of P. serotina were made. The extracts were analysed for differences in phenolics content based on different extraction methods. HPLC-MSn was used to identify the phenolic compounds, and HPLC–DAD was used for their quantification. Results The results show that different extraction methods result in differences in the amount of extractables. Flavanols are the main group of identified compounds in both leaves and flowers. A larger extraction efficiency leads to a higher amount of phenolics in the flowers compared to leaves (49.8 vs. 36.5 g/kg dry weight). No difference was detected in the amount of phenolics between water extracts of leaves and flowers. Each extract can be considered rich in phenolics. Conclusion This work shows that leaves and flowers of P. serotina are a rich source of phenolic compounds. We provide interesting results that might be of interest in the industrial valuation of several compounds.