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Journal articles on the topic 'Implied correlation'

Author: Grafiati

Published: 4 June 2021

Last updated: 30 January 2023

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1

Härdle, Wolfgang Karl, and Elena Silyakova. "Implied basket correlation dynamics." Statistics & Risk Modeling 33, no. 1-2 (2016): 1–20. http://dx.doi.org/10.1515/strm-2014-1176.

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AbstractEquity basket correlation can be estimated both using the physical measure from stock prices, and also using the risk neutral measure from option prices. The difference between the two estimates motivates a so-called “dispersion strategy”. We study the performance of this strategy on the German market and propose several profitability improvement schemes based on implied correlation (IC) forecasts. Modelling IC conceals several challenges. Firstly the number of correlation coefficients would grow with the size of the basket. Secondly, IC is not constant over maturities and strikes. Fin

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2

Walter, Christian A., and Jose A. Lopez. "Is Implied Correlation Worth Calculating?" Journal of Derivatives 7, no. 3 (2000): 65–81. http://dx.doi.org/10.3905/jod.2000.319125.

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3

Paulusch, Joachim, and Sebastian Schlütter. "Sensitivity-implied tail-correlation matrices." Journal of Banking & Finance 134 (January 2022): 106333. http://dx.doi.org/10.1016/j.jbankfin.2021.106333.

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4

Algaba, Andres, Kris Boudt, and Steven Vanduffel. "The variance implied conditional correlation." European Journal of Finance 26, no. 2-3 (2019): 200–222. http://dx.doi.org/10.1080/1351847x.2019.1615524.

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5

Mittnik, Stefan. "VaR-implied tail-correlation matrices." Economics Letters 122, no. 1 (2014): 69–73. http://dx.doi.org/10.1016/j.econlet.2013.10.025.

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6

Beer, S., and H. Fink. "Dynamics of foreign exchange implied volatility and implied correlation surfaces." Quantitative Finance 19, no. 8 (2019): 1293–320. http://dx.doi.org/10.1080/14697688.2019.1575517.

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7

Fink, Holger, and Sabrina Geppert. "Implied correlation indices and volatility forecasting." Applied Economics Letters 24, no. 9 (2016): 584–88. http://dx.doi.org/10.1080/13504851.2016.1213357.

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8

Bao, Xuhua. "The Correlation Determine Algorithm for Implied Restriction." Journal of Computer Research and Development 44, no. 12 (2007): 2028. http://dx.doi.org/10.1360/crad20071206.

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9

Rehman, Mobeen Ur. "Dynamics of Co-movements among Implied Volatility, Policy Uncertainty and Market Performance." Global Business Review 18, no. 6 (2017): 1478–87. http://dx.doi.org/10.1177/0972150917713060.

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This article examines the dynamic correlation among policy uncertainty, stock returns and implied volatility. The presence of a heterogeneous pattern during the financial crises period indicated significant dynamic correlation values with persistence. Extraneous variables, that is, exchange rate changes and oil prices, also influenced the dynamic correlation pattern between implied volatility index and stock market returns. Findings of this article suggest that the time-varying property exists among correlations and is sensitive to the financial turmoil and exchange rate changes.

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10

Numpacharoen, Kawee, and Nattachai Numpacharoen. "Estimating Realistic Implied Correlation Matrix from Option Prices." Journal of Mathematical Finance 03, no. 04 (2013): 401–6. http://dx.doi.org/10.4236/jmf.2013.34041.

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11

Linders, Daniël, and Wim Schoutens. "A framework for robust measurement of implied correlation." Journal of Computational and Applied Mathematics 271 (December 2014): 39–52. http://dx.doi.org/10.1016/j.cam.2014.03.026.

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12

Skintzi, Vasiliki D., and Apostolos-Paul N. Refenes. "Implied correlation index: A new measure of diversification." Journal of Futures Markets 25, no. 2 (2004): 171–97. http://dx.doi.org/10.1002/fut.20137.

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13

Escobar, Marcos, and Lin Fang. "Stochastic volatility models for the implied correlation index." Finance Research Letters 35 (July 2020): 101309. http://dx.doi.org/10.1016/j.frl.2019.101309.

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14

Markopoulou, Chryssa, Vasiliki Skintzi, and Apostolos Refenes. "On the predictability of model-free implied correlation." International Journal of Forecasting 32, no. 2 (2016): 527–47. http://dx.doi.org/10.1016/j.ijforecast.2015.09.008.

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15

Löhr, Sebastian, Olga Mursajew, Daniel Rösch, and Harald Scheule. "Dynamic Implied Correlation Modeling and Forecasting in Structured Finance." Journal of Futures Markets 33, no. 11 (2013): 994–1023. http://dx.doi.org/10.1002/fut.21626.

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16

Echaust, Krzysztof, and Just Małgorzata. "Implied Correlation Index: An Application to Economic Sectors of Commodity Futures and Stock Markets." Engineering Economics 31, no. 1 (2020): 4–17. http://dx.doi.org/10.5755/j01.ee.31.1.22247.

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An implied correlation index (ICI) measures the average correlation between all constituents of the portfolio. The concept of the index is similar to that of the S&P500 implied correlation index, but it is based on volatility estimation instead of option-implied volatility. The objective of the study is to examine the dynamics and properties of the implied correlation estimates within various economic sectors of the stock and commodity markets. We explore three commodity futures markets: metals, energy, agriculture, and five stock markets: basic materials, financials, industrials, oil &amp

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17

Schadner, Wolfgang, and Joshua Traut. "Estimating Forward-Looking Stock Correlations from Risk Factors." Mathematics 10, no. 10 (2022): 1649. http://dx.doi.org/10.3390/math10101649.

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This study provides fully mathematically and economically feasible solutions to estimating implied correlation matrices in equity markets. Factor analysis is combined with option data to receive ex ante beliefs for cross-sectional correlations. Necessary conditions for implied correlation matrices to be realistic, both in a mathematical and in an economical sense, are developed. An evaluation of existing models reveals that none can comply with the developed conditions consistently. This study overcomes this pitfall and provides two estimation models via exploiting the underlying factor struct

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18

Kolluri, Bharat, Susan Wahab, and Mahmoud Wahab. "Systematic Covariations and Emerging Asian Equity Markets’ Diversification Benefits to US Equity Investors." Review of Pacific Basin Financial Markets and Policies 23, no. 02 (2020): 2050009. http://dx.doi.org/10.1142/s0219091520500095.

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Unconditional and conditional correlations have played a central role in portfolio analysis, optimization, and performance measurement. However, recent studies show these two correlation measures are inappropriate for measuring both financial integration and, therefore, diversification benefits. We use an alternative correlation measure that we refer to by factor model-implied correlation estimated from the systematic (predictable) portion of returns of a multi-factor model with several global risk factors. Estimated implied correlations, covariances, variances, and in-sample (predicted) mean

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19

Mori, Shintaro, Kenji Kitsukawa, and Masato Hisakado. "Correlation Structures of Correlated Binomial Models and Implied Default Distribution." Journal of the Physical Society of Japan 77, no. 11 (2008): 114802. http://dx.doi.org/10.1143/jpsj.77.114802.

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20

Ballotta, Laura, Griselda Deelstra, and Grégory Rayée. "Multivariate FX models with jumps: Triangles, Quantos and implied correlation." European Journal of Operational Research 260, no. 3 (2017): 1181–99. http://dx.doi.org/10.1016/j.ejor.2017.02.018.

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21

Pellegrino, T. "Capturing implied correlation skew from options prices via multiscale stochastic volatility models." International Journal of Financial Engineering 07, no. 04 (2020): 2050042. http://dx.doi.org/10.1142/s2424786320500425.

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The aim of this paper is to derive a second-order asymptotic expansion for the price of European options written on two underlying assets, whose dynamics are described by multiscale stochastic volatility models. In particular, the second-order expansion of option prices can be translated into a corresponding expansion in implied correlation units. The resulting approximation for the implied correlation curve turns out to be quadratic in the log-moneyness, capturing the convexity of the implied correlation skew. Finally, we describe a calibration procedure where the model parameters can be esti

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22

Frederick, Shane, Amanda Levis, Steven Malliaris, and Andrew Meyer. "Valuing bets and hedges: Implications for the construct of risk preference." Judgment and Decision Making 13, no. 6 (2018): 501–8. http://dx.doi.org/10.1017/s1930297500006549.

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AbstractRisk attitudes implied by valuations of risk-increasing assets depart markedly from those implied by valuations of risk-reducing assets. For instance, many are unwilling to pay the expected value for a risky asset or for its perfect hedge. Although nearly every theory of risk preference (and logic) demands a negative correlation between valuations of bets and hedges, we observe positive correlations. This inconsistency is difficult to expunge.

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23

Rogel - Salazar, Jesús, and Roberto Tella. "Portfolio Construction Based on Implied Correlation Information and Value at Risk." econoquantum 12, no. 1 (2015): 125–44. http://dx.doi.org/10.18381/eq.v12i1.4856.

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24

BRIGO, DAMIANO, and LAURENT COUSOT. "THE STOCHASTIC INTENSITY SSRD MODEL IMPLIED VOLATILITY PATTERNS FOR CREDIT DEFAULT SWAP OPTIONS AND THE IMPACT OF CORRELATION." International Journal of Theoretical and Applied Finance 09, no. 03 (2006): 315–39. http://dx.doi.org/10.1142/s0219024906003597.

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In this paper we investigate implied volatility patterns in the Shifted Square Root Diffusion (SSRD) model as functions of the model parameters. We begin by recalling the Credit Default Swap (CDS) options market model that is consistent with a market Black-like formula, thus introducing a notion of implied volatility for CDS options. We examine implied volatilities coming from SSRD prices and characterize the qualitative behavior of implied volatilities as functions of the SSRD model parameters. We introduce an analytical approximation for the SSRD implied volatility that follows the same patt

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25

LEE, ROGER W. "IMPLIED AND LOCAL VOLATILITIES UNDER STOCHASTIC VOLATILITY." International Journal of Theoretical and Applied Finance 04, no. 01 (2001): 45–89. http://dx.doi.org/10.1142/s0219024901000870.

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For asset prices that follow stochastic-volatility diffusions, we use asymptotic methods to investigate the behavior of the local volatilities and Black–Scholes volatilities implied by option prices, and to relate this behavior to the parameters of the stochastic volatility process. We also give applications, including risk-premium-based explanations of the biases in some naïve pricing and hedging schemes. We begin by reviewing option pricing under stochastic volatility and representing option prices and local volatilities in terms of expectations. In the case that fluctuations in price and vo

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26

DeMiguel, Victor, Yuliya Plyakha, Raman Uppal, and Grigory Vilkov. "Improving Portfolio Selection Using Option-Implied Volatility and Skewness." Journal of Financial and Quantitative Analysis 48, no. 6 (2013): 1813–45. http://dx.doi.org/10.1017/s0022109013000616.

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AbstractOur objective in this paper is to examine whether one can use option-implied information to improve the selection of mean-variance portfolios with a large number of stocks, and to document which aspects of option-implied information are most useful to improve their out-of-sample performance. Portfolio performance is measured in terms of volatility, Sharpe ratio, and turnover. Our empirical evidence shows that using option-implied volatility helps to reduce portfolio volatility. Using option-implied correlation does not improve any of the metrics. Using option-implied volatility, risk p

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27

Sen, Monalisa, and Anil K. Bera. "The Improbable Nature of the Implied Correlation Matrix from Spatial Regression Models." Regional Statistics 4, no. 1 (2014): 3–15. http://dx.doi.org/10.15196/rs04101.

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28

Martellosio, Federico. "THE CORRELATION STRUCTURE OF SPATIAL AUTOREGRESSIONS." Econometric Theory 28, no. 6 (2012): 1373–91. http://dx.doi.org/10.1017/s0266466612000175.

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This paper investigates how the correlations implied by a first-order simultaneous autoregressive (SAR(1)) process are affected by the weights matrix and the autocorrelation parameter. A graph theoretic representation of the covariances in terms of walks connecting the spatial units helps to clarify a number of correlation properties of the processes. In particular, we study some implications of row-standardizing the weights matrix, the dependence of the correlations on graph distance, and the behavior of the correlations at the extremes of the parameter space. Throughout the analysis differen

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29

Zeng, Yuehua, Mark D. Petersen, and Zheng-Kang Shen. "Earthquake Potential in California-Nevada Implied by Correlation of Strain Rate and Seismicity." Geophysical Research Letters 45, no. 4 (2018): 1778–85. http://dx.doi.org/10.1002/2017gl075967.

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30

Helou, George, and M. D. Bicay. "Constraints on the Magnetic Fields in Galaxies Implied by the Infrared-to-Radio Correlation." Symposium - International Astronomical Union 140 (1990): 239–40. http://dx.doi.org/10.1017/s0074180900190102.

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We propose a physical model for understanding the tight correlation between far-infrared and non-thermal radio luminosities in star-forming galaxies. This approach suggests that the only constraint implied by the correlation is a universal relation whereby magnetic field strength scales with gas density to a power 1/3≤β≤<2/3.

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31

Schoenmakers, John, and Brian Coffey. "Systematic Generation of Parametric Correlation Structures for the LIBOR Market Model." International Journal of Theoretical and Applied Finance 06, no. 05 (2003): 507–19. http://dx.doi.org/10.1142/s0219024903002055.

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We present a conceptual approach of deriving parsimonious correlation structures suitable for implementation in the LIBOR market model. By imposing additional constraints on a known ratio correlation structure, motivated by economically sensible assumptions concerning forward LIBOR correlations, we yield a semi-parametric framework of non-degenerate correlation structures with realistic properties. Within this framework we derive systematically low parametric structures with, in principal, any desired number of parameters. As illustrated, such structures may be used for smoothing a matrix of h

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32

Han, Sang Il, and Chang Hyun Yun. "The Estimation of Pricing Kernel of KOSPI 200 Options Under Stochastic Volatility." Journal of Derivatives and Quantitative Studies 15, no. 1 (2007): 135–65. http://dx.doi.org/10.1108/jdqs-01-2007-b0005.

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In this paper we make an analysis of KOSPI 200 index options listed in Korea Stock and Futures Exchange whose trading volume is world best these days. We adopt the stochastic volatility model suggested by Heston (1993) for the dynamics of the underlying asset and use EMM to estimate the parameters of option pricing kernel. The SNP distribution of the implied volatility contains AR (2) and ARCH effects, and the skewness of the distribution is much higher than normal distribution. The distribution has thinner left tail and fatter right tail than normal distribution, which is opposite to the case

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33

CARDINALI, ALESSANDRO. "A GENERALIZED MULTISCALE ANALYSIS OF THE PREDICTIVE CONTENT OF EURODOLLAR IMPLIED VOLATILITIES." International Journal of Theoretical and Applied Finance 12, no. 01 (2009): 1–18. http://dx.doi.org/10.1142/s0219024909005130.

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It is widely believed that implied volatilities contains information that would enable prediction of spot volatility for a wide range of financial assets. Lead-lag analysis based on the Discrete Wavelet Transform has been proposed as one method for identifying and extracting that predictive information. Unfortunately this approach can fail to identify periodic components that are not proportional to an increasing dyadic scale. We propose a multiscale analysis of the Eurodollar realized volatility and at-the-money (ATM) implied volatilities. After filtering the long memory components we produce

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34

TANIMURA, HIDETOSHI, and YUJI YAMADA. "AN EFFICIENT CALIBRATION METHOD FOR THE MULTI-FACTOR LIBOR MARKET MODEL AND ITS APPLICATION TO THE JAPANESE MARKET." International Journal of Theoretical and Applied Finance 09, no. 07 (2006): 1123–39. http://dx.doi.org/10.1142/s0219024906003913.

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In this paper an efficient calibration method for the multi-factor LIBOR Market Model (LMM) is proposed and is applied for the Japanese interest rate market. At first the joint calibration method in the cap and swaption market is demonstrated using a new parameterization for the correlation matrix in the LMM. Then we implement the proposed methodology for calibrating the Japanese cap and swaption markets, where the computational procedure is shown to be tractable and provides a practical estimation for the implied correlation matrix in the LMM. The empirical analysis also illustrates that Blac

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35

Dennett-Thorpe, J., A. H. Bridle, R. A. Laing, and P. A. G. Scheuer. "Spectral Index Asymmetries in Low-z Radio Galaxies." Symposium - International Astronomical Union 175 (1996): 395–96. http://dx.doi.org/10.1017/s0074180900081213.

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In recent years a number of correlations have been observed between the large-scale properties of FRII radio galaxies and quasars. Some correlations find their simplest explanations in terms of environmental effects, others in terms of beaming/orientation effects. The problem, however, is that there is an implied correlation between these different types of effects. This is a report on work underway to investigate this directly and exclude the confusion introduced by use of different samples.

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36

VARGAS, VINCENT, TUNG-LAM DAO, and JEAN-PHILIPPE BOUCHAUD. "SKEW AND IMPLIED LEVERAGE EFFECT: SMILE DYNAMICS REVISITED." International Journal of Theoretical and Applied Finance 18, no. 04 (2015): 1550022. http://dx.doi.org/10.1142/s0219024915500223.

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We revisit the "Smile Dynamics" problem, which consists in relating the implied leverage (i.e. the correlation of the at-the-money volatility with the returns of the underlying) and the skew of the option smile. The ratio between these two quantities, called "Skew-Stickiness Ratio" (SSR) by Bergomi (2009), saturates to the value 2 for linear models in the limit of small maturities, and converges to 1 for long maturities. We show that for more general, non-linear models (such as the asymmetric GARCH model), Bergomi's result must be modified, and can be larger than 2 for small maturities. The di

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37

Hobbes, Garry, Frewen Lam, and Geoffrey F. Loudon. "Regime Shifts in the Stock–Bond Relation in Australia." Review of Pacific Basin Financial Markets and Policies 10, no. 01 (2007): 81–99. http://dx.doi.org/10.1142/s0219091507000969.

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Previous evidence suggests that the implied volatility from equity index options, as a measure of stock market uncertainty, can provide "forward-looking information" about the stock–bond return correlation. This paper uses an alternative regime-switching autoregressive model to characterize state-dependent stock–bond return comovement and to evaluate the contribution of implied volatility in understanding transition dynamics. We confirm that implied volatility provides information about transition dynamics which is not inherent in the stock and bond returns, notwithstanding several different f

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38

Andrews, Angela, Pradyot Sen, and Jens Stephan. "Analysts’ forecasts and uncertainty about firm value." Review of Accounting and Finance 17, no. 3 (2018): 298–315. http://dx.doi.org/10.1108/raf-09-2016-0146.

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Purpose The purpose of this study is to use implied volatilities from exchange traded options to examine the interaction between analysts’ forecast revisions and the market’s perception of uncertainty about firm value. Design/methodology/approach The authors examine how characteristics of individual forecast revisions, e.g. news and changes in dispersion of forecasts, affect changes in implied volatilities, whether analysts use the observable changes in implied volatilities to inform their forecast revisions and whether changes in dispersion of forecasts are correlated with changes in implied

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39

Apulisa, Uena, Novitri, and Masyhur. "The Correlation between English Department Students' Habit in Watching English Movies and Their Vocabulary Knowledge." JEE (Journal of English Education) 7, no. 1 (2021): 65–76. http://dx.doi.org/10.30606/jee.v7i1.825.

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This research discussed the correlation between English department students' habit in watching English movies and their vocabulary knowledge. The background of conducting this research is to see how the possibility of students' habits in watching English movies influenced students' vocabulary knowledge. Furthermore, to find out if there is a significant correlation between English department students' habit in watching English movies and their vocabulary knowledge, this research determines the descriptive correlational method as the research design. After collecting and analyzing the data, it

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40

Lee, Edward D., Bryan C. Daniels, David C. Krakauer, and Jessica C. Flack. "Collective memory in primate conflict implied by temporal scaling collapse." Journal of The Royal Society Interface 14, no. 134 (2017): 20170223. http://dx.doi.org/10.1098/rsif.2017.0223.

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In biological systems, prolonged conflict is costly, whereas contained conflict permits strategic innovation and refinement. Causes of variation in conflict size and duration are not well understood. We use a well-studied primate society model system to study how conflicts grow. We find conflict duration is a ‘first to fight’ growth process that scales superlinearly, with the number of possible pairwise interactions. This is in contrast with a ‘first to fail’ process that characterizes peaceful durations. Rescaling conflict distributions reveals a universal curve, showing that the typical time

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41

Cheng, Zhiqiang, Zhongqi Zhao, Junxia Geng, et al. "A new method for monitoring the redox potential of fuel salt based on the deposition of 95Nb on Hastelloy C276." Radiochimica Acta 109, no. 5 (2021): 357–65. http://dx.doi.org/10.1515/ract-2021-1011.

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Abstract To develop the application of 95Nb as an indicator of redox potential for fuel salt in molten salt reactor (MSR), the specific activity of 95Nb in FLiBe salt and its deposition of 95Nb on Hastelloy C276 have been studied. Experimental results indicated that the amount of 95Nb deposited on Hastelloy C276 resulted from its chemical reduction exhibited a positive correlation with the decrease of 95Nb activity in FLiBe salt and the relative deposition coefficient of 95Nb to 103Ru appeared a well correlation with 95Nb activity in FLiBe salt. Both correlations implied that the measurement o

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42

Kim, Moo Sung, and Tae Hun Kang. "The Pricing and Hedging using the Implied Information Conditioned on Martingale Restriction and Market Efficiency." Journal of Derivatives and Quantitative Studies 17, no. 4 (2009): 1–42. http://dx.doi.org/10.1108/jdqs-04-2009-b0001.

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This article empirically tests the time-correlation of implied information reflecting the return dynamics of KOSPI 200 markets in the view of the decision making and market efficiency. Because option prices are not perfectly correlated with each other and with the underlying asset, the information contents of the option are different from those of the underlying market price. And, under the non-complete of the market and the limited arbitrage, the information implied in option (underlying) market price may be more useful in the option (underlying) market than in the underlying (option) market.

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43

Magner, Nicolás, Jaime F. Lavin, Mauricio Valle, and Nicolás Hardy. "The predictive power of stock market’s expectations volatility: A financial synchronization phenomenon." PLOS ONE 16, no. 5 (2021): e0250846. http://dx.doi.org/10.1371/journal.pone.0250846.

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We explore the use of implied volatility indices as a tool for estimate changes in the synchronization of stock markets. Specifically, we assess the implied stock market’s volatility indices’ predictive power on synchronizing global equity indices returns. We built the correlation network of 26 stock indices and implemented in-sample and out-of-sample tests to evaluate the predictive power of VIX, VSTOXX, and VXJ implied volatility indices. To measure markets’ synchronization, we use the Minimum Spanning Tree length and the length of the Planar Maximally Filtered Graph. Our results indicate a

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44

Liu, Zhenhua, Hui-Kuan Tseng, Jy S. Wu, and Zhihua Ding. "Implied volatility relationships between crude oil and the U.S. stock markets: Dynamic correlation and spillover effects." Resources Policy 66 (June 2020): 101637. http://dx.doi.org/10.1016/j.resourpol.2020.101637.

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45

Bui, Thong Ngoc Minh, Khiem Trong Hoang, and Huy Duc Hoang. "The functional feeding groups’ structure of aquatic insects in upstreams of Da Nhim river, Lam Dong province." Science and Technology Development Journal 18, no. 2 (2015): 25–35. http://dx.doi.org/10.32508/stdj.v18i2.1138.

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Study on the functional feeding group (FFG) structure of aquatic insects in upstreams of Da Nhim river to understand the ecological functional groups in the watershed. The study investigated two headwater streams (A and B) of upper Da Nhim river in the dry and rainy seasons 2013). Quantitative sampling, diversity indices, grouping the FFGs and analysing correlation between the FFGs conducted in each season. Results showed that: (1) Shannon - Weiner indices (H') were 3.0-4.4, and Simpson indices (λ) were 0.06-0.13; (2) The FFG structure included five groups: collector - garthering (cg) (46 %),

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46

Bansal, Naresh, Robert A. Connolly, and Chris Stivers. "The Stock-Bond Return Relation, the Term Structure’s Slope, and Asset-Class Risk Dynamics." Journal of Financial and Quantitative Analysis 49, no. 3 (2014): 699–724. http://dx.doi.org/10.1017/s0022109014000258.

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AbstractWe study whether asset-class risk dynamics can help explain the predominantly negative stock-bond return relation and movements in the term structure’s slope over 1997–2011. Using option-derived implied volatilities to measure risk, we find i) the negative stock-bond return relation largely disappears when controlling for risk movements, at both monthly and weekly horizons; ii) the partial relation between equity-risk changes and 10-year T-bond excess returns (term-slope movements) is reliably positive (negative); and iii) a stronger link between equity risk and stock returns implies a

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47

Sinta, Dewi. "School Organizational Culture and Achievement Motivation With Teacher Performance at MA Miftahul 'Ulum Tuyau School." Indonesian Journal of Education (INJOE) 2, no. 2 (2022): 150–58. http://dx.doi.org/10.54443/injoe.v2i2.20.

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The purpose of this study was to obtain information on the correlation between school organizational culture and achievement motivation with the performance of school teachers. The approach used is quantitative with a survey method at MA Miftahul 'Ulum Tuyau. The research findings are: 1. There is a correlation between school organizational culture and performance. 2. There is a correlation between achievement motivation and performance. 3. There is a correlation between school organizational culture and achievement motivation with performance. The results of the study implied that in school o

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48

Verter, Frances. "The Correlation of CO and IR Emission from Galaxies: What Does it Tell Us?" Highlights of Astronomy 8 (1989): 585–86. http://dx.doi.org/10.1017/s1539299600008443.

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Almost all galaxy properties correlate with each other to some degree; in this bounty of agreement, how are we to extract essentials? Fortunately, there is a framework in which to interpret CO correlations. Empirical studies have indicated that the fundamental galaxy properties are scale and form (Whitmore 1984), and theoretical work has implied that this follows from the physics of galaxy formation (see Lin and Pringle 1987, and references therein). It is known that the CO luminosity of galaxies is a function of both their scale (Young and Scoville 1982) and their form (Verter 1987). But the

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Cho, Dam. "Implied Volatility of the KOSPI 200 Index Option Market." Journal of Derivatives and Quantitative Studies 23, no. 4 (2015): 517–41. http://dx.doi.org/10.1108/jdqs-04-2015-b0002.

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Abstract:

This paper analyzes implied volatilities (IVs), which are computed from trading records of the KOSPI 200 index option market from January 2005 to December 2014, to examine major characteristics of the market pricing behavior. The data includes only daily closing prices of option transactions for which the daily trading volume is larger than 300 contracts. The IV is computed using the Black-Scholes option pricing model. The empirical findings are as follows; Firstly, daily averages of IVs have shown very similar behavior to historical volatilities computed from 60-day returns of the KOSPI 200 i

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Copley, M. S., R. Berstan, S. N. Dudd, et al. "Processing of milk products in pottery vessels through British prehistory." Antiquity 79, no. 306 (2005): 895–908. http://dx.doi.org/10.1017/s0003598x00115029.

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Abstract:

By extracting residues from pottery sherds the authors show that it is possible to say whether they had contained dairy or carcass fat residues. Correlation with faunal assemblages showed a good match between the incidence of dairy fat in pottery which implied a strong dairy fraction in the diet and a milking herd implied by the animal bones. They also show that dairy fat was more likely to be found in the smaller pots while carcass fats occurred in the larger ones. The method has demonstrated dairying in England from the fifth millennium BC, and offers a novel way of studying economies with p

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