Are Beta Parameters Stable on the Warsaw Stock Exchange?

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Wiesław Dębski
Ewa Feder-Sempach
Bartosz Świderski

Abstract

Beta parameter is one of the commonly used measurements of individual stockor portfolio investment risk and plays a crucial role in modern portfolio theoryparticularly in management of financial investment portfolios. Many studieshave been done in this field, particularly on its properties such as stability in thecontext of the stock market cycle phases, measuring frequency of rate of return,length of sample period. However, the number of studies concerning beta parameterin the counties of Central and Eastern Europe that have undergone systemictransformation at the end of the previous century is much lower. Therefore wedecided to study the changes of behavior of the beta parameter in those countries.The main aim of this article is to examine the beta parameter stability over bulland bear market conditions on the Warsaw Stock Exchange. The paper presentsan analysis of betas stability for 134 stocks of the largest companies listed at theWSE during years 2005–2013.

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How to Cite
Dębski, W., Feder-Sempach, E., & Świderski, B. (2015). Are Beta Parameters Stable on the Warsaw Stock Exchange?. Kwartalnik Kolegium Ekonomiczno-Społecznego. Studia I Prace, 3(3), 65–74. https://doi.org/10.33119/KKESSiP.2015.3.3.5
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References

Alexander G. J., Benson P. G., More on beta as a random coefficient, “Journal of Financialand Quantitative Analysis” 1982, Vol. 17, No. 1.
Berger D., Financial turbulence and beta estimation, “Applied Financial Economics” 2013,Vol. 23 No. 3.
Bhaduri S., Durai S., Asymmetric beta in bull and bear market conditions: evidence fromIndia, “Applied Financial Economics Letters” 2006, No. 2.
Blume M. E., On the assessment of risk, “Journal of Finance” 1971, Vol. 26, No. 1.
Bradley E., Tibshirani, R. J., An Introduction to the Bootstrap, Chapman and Hall, NewYork 1993.
Brennan M. J., Copeland T. E., Beta changes around stock splits: A note, “Journal of Finance”1988, Vol. 43, No. 4.
Brzeszczynski J., Gajdka J., Schabek T., The role of stock size and trading intensity in themagnitude of the “interval effect” in beta estimation: empirical evidence from the Polishcapital market, “Emerging Markets Finance & Trade” 2011, Vol. 47, No. 1.
Chen S., An examination of risk-return relationship in bull and bear markets using time--varying betas, “Journal of Financial and Quantitative Analysis” 1982, Vol. 17, No. 2.
Clarkson P. M., Thompson R., Empirical estimates of beta when investors face estimationisk, “Journal of Finance” 1990, Vol. 45, No. 2.
Cwynar W., Personalizacja w pomiarze ryzyka rynkowego (Personalisation in the measurementof market risk), „e-Finanse – Finansowy Kwartalnik Internetowy” 2008, Vol. 8.
Deb S. G., Misra S., Are equity betas stable? Evidence from Indian equity market, “The IUPJournal of Applied Finance” 2011, Vol. 17, No. 4.
Dębski W., Feder – Sempach E., Beta coefficients of Polish blue chip companies in the periodof 2005–2011, „Folia Oeconomica Stetinensia” 2012, No. 2.
Dębski W., Feder– Sempach E., Świderski B., Stabilność parametru beta w okresie rynkubyka i niedźwiedzia dla największych spółek warszawskiej GPW (The stability of betaparameters in the period of the bull and bear market for the largest companies in theWarsaw Stock Exchange), „Zarządzanie i Finanse” 2013, Vol. 11, No. 2.
Eubank A. A., Zumwalt J. K., An Analysis of the forecast error impact of alternative betaadjustment techniques and risk classes, “The Journal of Finance” 1979, Vol. 34, No. 3.
Fabozzi F. F., Francis J. C., Stability tests for alphas and betas over bull and bear market conditions,“The Journal of Finance” 1977, Vol. 32, No. 2.
Feder-Sempach E., Ryzyko inwestycyjne. Analiza polskiego rynku akcji (The investment risk.Analysis of the Polish stock market), CeDeWu, Warszawa 2011.
Fisher L., Kamin J. H., Forecasting systematic risk: estimates of “raw” beta that take accountof the tendency of beta to change and the heteroskedasticity of residual returns, “Journalof Financial and Quantitative Analysis” 1985, Vol. 20, No. 2.
Kim M., Zumwalt K., An analysis of risk in bull and bear markets, “Journal of Financialand Quantitative Analysis” 1979, Vol. 14, No. 5.
Kurach J., Does beta explain global equity market volatility – some empirical evidence, “ContemporaryEconomics” 2013, Vol. 7, No. 2.
Lin W. T., Chen Y. H., Investment horizon and beta coefficient, “Journal of Business Research”1990, Vol. 21, No. 1.
Levy R. A., Beta coefficient as predictors of return, “Financial Analysts Journal” 1974,Vol. 30, No. 1.
Maddala G. S., Ekonometria (Econometrics), trans. M. Gruszczyński, E. Tomczyk, B. Witkowski,Wyd. Naukowe PWN, Warszawa 2008.
Ray K. K., Stability of beta over market phases: an empirical study on Indian stock market,“International Research Journal of Finance and Economics” 2010, No. 50.
Sercu P., Vanderbroek M., Vinaimont T., Thin-trading effects in beta: bias v. estimation error,“Journal of Business Finance and Accounting” 2008, Vol. 35, No. 9/10.
Singh R., Beta stationarity over bull and bear markets in India, “The ICFAI Journal ofApplied Finance” 2008, Vol. 14, No. 4.
Tarczyński W., O pewnym sposobie wyznaczania współczynnika beta na polskim rynkukapitałowym (About a method of determining the beta coefficient on the Polish capitalmarket), „Zeszyty Naukowe”, Uniwersytet Szczeciński, Studia i Prace Wydziału NaukEkonomicznych i Zarządzania, No. 561, Szczecin 2009.
Witkowska D., Badanie stabilności współczynnika beta oszacowanego na podstawie próbo różnej długości (Examination of the stability of the beta parametr estimated from tests ofdifferent lengths), “Rynek Kapitałowy, Skuteczne inwestowanie, Studia i Prace WydziałuNauk Ekonomicznych i Zarządzania” No. 9, Uniwersytet Szczeciński, Szczecin 2008.