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Beta Coefficients of Polish Blue Chip Companies in the Period Of 2005–2011

Author

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  • Dębski Wiesław

    (University of Finance and Management in Warsaw Pawia 55, 01-030 Warszawa, Poland)

  • Feder-Sempach Ewa

    (University of Lodz Faculty of Economics and Sociology POW 3/5, 90-255 Łódź, Poland)

Abstract
Risk plays a significant role in various aspects of financial decision throughout the world financial markets. Beta parameter is one of the commonly used coefficient to estimate the systematic risk associated with stocks. Beta is mostly calculated using single index market model by W. Sharpe.This study examined the beta parameter under bull and bear market conditions on the Warsaw Stock Exchange (WSE). This paper analyses the beta responses for bad and good news for 44 stocks (14 stocks from the WIG20 index and 30 stocks from the mWIG40 index) over the last six years of trading at the WSE. Beta was calculated using monthly returns over the period 2005-2011, separately for the bull and the bear market. Our analysis finds strong evidence that beta is different in bull and bear market phase.

Suggested Citation

  • Dębski Wiesław & Feder-Sempach Ewa, 2012. "Beta Coefficients of Polish Blue Chip Companies in the Period Of 2005–2011," Folia Oeconomica Stetinensia, Sciendo, vol. 12(2), pages 90-102, December.
    • Handle: RePEc:vrs:foeste:v:12:y:2012:i:2:p:90-102:n:1
    DOI: 10.2478/v10031-012-0025-6
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    References listed on IDEAS

    as
    1. Răzvan Ştefănescu & Costel Nistor & Ramona Dumitriu, 2009. "Asymmetric Responses of CAPM - Beta to the Bull and Bear Markets on the Bucharest Stock Exchange," Annals of the University of Petrosani, Economics, University of Petrosani, Romania, vol. 9(4), pages 257-262.
    2. Terence Tai-Leung Chong & Zimu Li & Haiqiang Chen & Melvin Hinich, 2010. "An investigation of duration dependence in the American stock market cycle," Journal of Applied Statistics, Taylor & Francis Journals, vol. 37(8), pages 1407-1416.
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    5. George Woodward & Heather Anderson, 2009. "Does beta react to market conditions? Estimates of 'bull' and 'bear' betas using a nonlinear market model with an endogenous threshold parameter," Quantitative Finance, Taylor & Francis Journals, vol. 9(8), pages 913-924.
    6. William F. Sharpe, 1964. "Capital Asset Prices: A Theory Of Market Equilibrium Under Conditions Of Risk," Journal of Finance, American Finance Association, vol. 19(3), pages 425-442, September.
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