Journals / Akdeniz İİBF Dergisi / 2007 / Cilt: 7 - Sayı: 14

Beta tahmini için düzeltme gerekli mi?

Is a correction necessary for beta estimation?

Pages
110–121
Publication Date
2022-10-11
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Findings of our study suggest that proposed correction methods seem to provide accurate beta estimates.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The CAPM beta (β) is a parameter, which plays a central role in modern finance as a measure of an asset’s systematic risk.
📊
Key Findings & Data:Practitioners rely on beta estimates when estimating costs of capital, applying various valuation models, determining portfolio strategies and implementing risk management techniques.
💡
Conclusion & Impact:Findings of our study suggest that proposed correction methods seem to provide accurate beta estimates.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The CAPM beta (β) is a parameter, which plays a central role in modern finance as a measure of an asset’s systematic risk. Practitioners rely on beta estimates when estimating costs of capital, applying various valuation models, determining portfolio strategies and implementing risk management techniques. Researchers also rely on beta estimates for many applications such as determining relative risk, testing asset pricing models, testing trading strategies and conducting event studies. As evidenced, betas are not stable over time. Hence, the instability of betas over time leads to important practical problems. If nonstationarity of βs is ignored, investors may make significant mistakes resulting in underestimating or overestimating systematic risk. In this study, we have proposed two correction methods for beta estimation. Findings of our study suggest that proposed correction methods seem to provide accurate beta estimates.

Özet

Sermaye Varlıklarını Fiyatlama Modeli’ndeki (SVFM) β katsayısı finans alanında sistematik risk ölçütü olarak önemli bir yere sahiptir. Piyasa aktörleri sermaye maliyeti hesaplamada, varlık değerlemelerinde, portföy stratejileri belirlemede ve risk yönetiminde β katsayısından yararlanırlar. Benzer şekilde, araştırmacılar da nispi risk belirleme, modellerin test edilmesi gibi konularda β katsayını kullanırlar. Yapılan çalışmalarda ortaya konduğu üzere, β katsayıları zaman içinde istikrarlı değildir. Dolayısıyla, β katsayılarının zaman içindeki değişkenliği uygulamada önemli problemler yaratabilir. β katsayılarının değişkenliği göz ardı edilirse yatırımcılar yanlış kararlar almalarına neden olabilir. Bu çalışmada, β katsayısı tahmini için düzeltme yöntemleri önerilmiştir. Çalışma bulguları önerilen yöntemlerin daha doğru tahmin sonuçları verdiğini göstermektedir.

🔖

Cite This Article

SARITAŞ, H., AYGÖREN, H. (2022). Beta tahmini için düzeltme gerekli mi?. Akdeniz İİBF Dergisi, Cilt: 7 - Sayı: 14, 110–121. https://ajindex.com/articles/433203

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (20)

  1. ALEXANDER, G.J.and BENSON, P.G. (1982)
  2. More on Beta as a Random Coefficient, Journal of Financial and Quantitative Analysis, 17, 27-36.
  3. ALTMAN, E. I., JACQUILLAT, B. and LEVASSEUR, M. (1974) Comparative Analysis of Risk Measures: France and the United States, Journal of Finance, 29, 1495-1511.
  4. AVRAMOV, D. and CHORDIA T. (2006) Asset Pricing Models and Financial Market Anomalies, The Review of Financial Studies v 19 n 3, 1001-1040.
  5. BAESEL, J.B. (1974) On the Assessment of Risk: Some Further Considerations, Journal of Finance, 29, 1491-1494.
  6. BEER, F. M. (1997) Estimation of Risk on The Brussels Stock Exchange: Methodological Issues and Empirical Results, Global Finance Journal, 8 (1), 83-94.
  7. BLUME, M. E. (1971)
  8. On the Assessment of Risk, The Journal of Finance, 26, 1-10.
  9. BLUME, M. E. (1975) Betas and Their Regression Tendencies, The Journal of Finance, 30, 785-795.
  10. BOS T. and NEWBOLD, P. (1984) An Empirical Investigation of the Possibility of Stochastic Systematic Risk in the Market Model, Journal of Business, 57, 35-41.
  11. BRAILSFORD, T.J. and FAFF., R.W. (1997) Testing the conditional CAPM and the effect of intervaling: a note, Pacific-Basin Finance Journal, 5, 527–537.
  12. BRAILSFORD, T. J. and JOSEV, T. (1997) The impact of return interval on the estimation of systematic risk, Pacific-Basin Finance Journal, 5, 357- 376. BRAUN, P., NELSON, D. and SUNIER, A. (1995) Good news, bad news, volatility and betas, Journal of Finance, 50, 1575–1603.
  13. CHENG, J. and BOASSON, V. W. (2004) Using the Time Weighted Method to Estimate Betas of Emerging Markets, Managerial Finance, v 30 n 3, 74-87.
  14. CLARFELD, R. A. and BERNSTEIN, P. (1997) How to interpret measures of risk—Understanding Risk in Mutual Fund Selection, Journal of Accountancy, July, 45-49.
  15. COHEN, K.J. HAWAWINI, G.A., MAIER, S.F., SCHWARTZ, R.A., & WHITCOMB, D.K. (1980) Implications of microstructure theory for empirical research on stock price behavior, Journal of Finance, 35, 249-257.
  16. COHEN, K., HAWAWINI, G., MAYER, S., SCHWARTZ, R., and WHITCOMB, D. (1983) Estimating and Adjusting for the Undervaluing Effect Bias in Beta, Management Science, 29, 135-148.
  17. COLLINS, D.W., LEDOLTER, J., and RAYBURN, J. (1987) Some Further Evidence on the Stochastic Properties of Systematic Risk, Journal of Business, 60, 425-448.
  18. DIMSON, E. (1979) Risk measurement when shares are subject to infrequent trading, Journal of Financial Economics, 7, 197-226.
  19. ESTRADA, J. (2000)
  20. The Temporal dimension of risk, The Quarterly Review of Economic