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Systematic Risk of Stocks: The Return Interval Effect on Beta
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Capital Asset Pricing Model (CAPM) and Market Model are the standard directives to describe the relationship between risk and return of investments. Both the models claim that the inherent risk of a security should be measured by beta. In India, leading stock exchanges disseminate beta values of prominent stocks by using daily paired observations of stock and key index returns. However, some other investment institutions and practitioners advocate weekly or monthly returns for beta estimations. This study aims to investigate the impact of return intervals on the estimation of beta. Beta coefficients of fifty most prominent stocks listed on National Stock Exchange (NSE) of India are estimated on the bases of daily, weekly, and monthly returns using S&P CNX Nifty as a proxy of the market. Results show that the return intervals have a significant impact on the estimation of beta.
Keywords
CAPM, Market Model, Beta, Return Interval, Systematic Risk, NSE.
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- Bollerslev, T., Engle, R., & Wooldrige, J. (1988).A capital asset pricing model with time- varying covariances. Journal of Political Economy, 96, 116-131.
- Bos, T., & Newbold, P. (1984). an empirical investigation of the possibility of stochastic systematic risk in the market model. Journal of Business, 57, 35-41.
- Breen, W. J., Glosten, L. R., & Jagannathan, R. (1989). Economic significance of predictable variation in stock index returns. Journal of Finance, 44, 1177-1190.
- Cohen, K., Hawawini, G., Mayer, S., Schwartz, R., & Whitcomb, D. (1986). The microstructure of security Market, Prentice-Hall, Sydney
- Chawla, D. (2001). Testing stability of beta in the Indian stock market. Decision, 28(2),1-15.
- Daves, P. R., Ehrhardt, M. C., & Kunkel, R. A. (2000). Estimating systematicrisk: The choice of return interval and estimation period. Journal of Financial and Strategic Decisions, 13(1) 7-13.
- Elton, E. J., Gruber, M. J., Brown, S. J., & Goetzmann, W. N. (2003). Modern portfolio theory and investment analysis, 6th edition.Wiley, New York.
- Ferson, W. E. (1989). Changes in expected security returns, risk and the level of interest rates. Journal of Finance, 44, 1191-1214.
- Fabozzi, F., & Francis, J. (1978). Beta as a Random Coefficient. Journal of Financial and Quantitative Analysis, 13(1), 101-116.
- Gencay. R., Selcuk, F., & Whitcher, B (2002). Systematic risk and time scales.Quantitative Finance,03, 108-116
- Handa, P., Kothari,S.P., & Wasley, C. (1989). The relation between the return interval and betas: Implications for the size effect. Journal of Financial Economics, 23, 79-100.
- Hawawini, G. (1983). Why beta shifts as the return interval changes. Financial Analyst, 39, 73-77.
- Keim, D. B., & Stambaugh, R. F. (1986). Predicting returns in the stock and bond markets. Journal of Financial Economics, 17, 357-390.
- Lintner, J. (1965). The valuation of risky assets and the selection of risky investments in stock portfolios and capital budgets. Review of Economics and Statistics, 47, 13-37.
- Levhari, D., & Levy, H. (1977). The capital asset pricing model and the investment horizon. Review of Economics and Statistics, 59, 92-104.
- Mandelker, G. (1974). Risk and return: The case of merging firms. Journal of Financial Economics, 4, 303-335.
- Roll, R., & Stephen A. R. (1994). On the cross-sectional relation between expected returns and betas. Journal of Finance, 49, 101-122.
- Sharpe, W. F. (1964). Capital asset prices: A theory of market equilibrium under conditions of risk. Journal of Finance, 19, 425-442
- Sharpe, W. F., Alexander, G. J., & Bailey, J. V. (1999). Investments, 6th edition, Prentice Hall, New Jersey.
- Wang, K. Q. (2003). Asset pricing with conditioning information: A new test. Journal ofFinance, 58, 161-196.
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