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A Generalized Method for Detecting Abnormal Returns and Changes in Systematic Risk

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Abstract

We generalize traditional event-study techniques to allow for event-induced parameter shifts, shifting variances, and firm-specific event periods. Our method, which nests traditional methods, also permits systematic risk to change gradually during the event period and exit the period at higher or lower levels. We use our approach to study 123 banks that acquired other institutions between 1989 and 1995. We find a significant change in the systematic risk of the acquiring firms, significant ARCH effects, and an event period that ends before the date of the announcement. None of these results is detectable using conventional methods.

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References

  • Ball, C. and W. Torous, “Investigating Security-Price Performance in the Presence of Event-Date Uncertainty.” Journal of Financial Economics 22, 123-153, (1988).

    Google Scholar 

  • Bar-Yosef, S. and L. Brown, “A Reexamination of Stock Splits Using Moving Betas.” Journal of Finance 32, 1069-1080, (1977).

    Google Scholar 

  • Boehmer, E., J. Musumeci and A. Poulsen, “Event-Study Methodology Under Conditions of Event-Induced Variance.” Journal of Financial Economics 30, 253-272, (1991).

    Google Scholar 

  • Brown, S. J. and J. B. Warner, “Measuring Security Price Performance.” Journal of Financial Economics 8, 205-258, (1980).

    Google Scholar 

  • Brown, S. J. and J. B. Warner, “Using Daily Stock Returns: The Case of Event Studies.” Journal of Financial Economics 14(1), 3-31, (1985).

    Google Scholar 

  • Brown, K. C., L. J. Lockwood and S. L. Lummer, “An Examination of Event Dependency and Structural Change in Security Pricing Models.” Journal of Financial and Quantitative Analysis 20(3), September, 315-334, (1985).

    Google Scholar 

  • DeGennaro, R. P. and J. B. Thomson, “Anticipating Bailouts: The Incentive-Conflict Model and the Collapse of the Ohio Deposit Guarantee Fund.” Journal of Banking and Finance 19, 1401-1418, (1995).

    Google Scholar 

  • de Jong, F., A. Kemna and T. Kloek, “A Contribution to Event Study Methodology with an Application to the Dutch Stock Market.” Journal of Banking and Finance 16, 11-36, (1992).

    Google Scholar 

  • Engle, R. F., “Autoregressive Conditional Heteroskedasticity with Estimates of the Variance UK Inflation.” Econometrica 50, 987-1008 (1982).

    Google Scholar 

  • Fama, E. F. and K. R. French, “The Cross-Section of Expected Stock Returns.” Journal of Finance 47, 427-465, (1992).

    Google Scholar 

  • Frame, W. S. and W. D. Lastrapes, “Abnormal Returns in the Acquisition Market: The Case of Bank Holding Companies, 1990-1993.” Journal of Financial Services Research 14(2), 145-163 (1998).

    Google Scholar 

  • Hamilton, J. D. and R. Susmel, “Autoregressive Conditional Heteroskedasticity and Changes in Regime.” Journal of Econometrics 64, 307-333, (1994).

    Google Scholar 

  • Haw, I.-M., V. S. Pastena and S. B. Lilien, “Market Manifestation of Nonpublic Information Prior to Mergers: The Effect of Ownership Structure.” The Accounting Review 65, 432-451, (1990).

    Google Scholar 

  • Henderson, G. V., Jr., “Problems and Solutions in Conducting Event Studies.” Journal of Risk and Insurance 57, 282-306, (1990).

    Google Scholar 

  • Hildreth, C. and J. P. Houck, “Some Estimators for a Linear Model with Random Coefficients.” Journal of the American Statistical Association 63, 584-595, (1968).

    Google Scholar 

  • Houston, J. F. and M. D. Ryngaert, “The Overall Gains from Large Bank Mergers.” Journal of Banking and Finance 18, 1155-1176, (1994).

    Google Scholar 

  • Ibbotson, R. G., “Price Performance of Common Stock New Issues.” Journal of Financial Economics 2, 235-272, (1975).

    Google Scholar 

  • Lee, J. and R. P. DeGennaro, “Smooth Transition ARCH Models: Estimation and Testing.” Review of Quantitative Finance and Accounting 15, 5-20, (2000).

    Google Scholar 

  • Lockwood, L. and R. Kadiyala, “Risk Measurement for Event Dependent Security Returns.” Journal of Business and Economic Statistics (1), January, 43-49, (1988).

  • Madura, J. and K. J. Wiant, “Long-Term Valuation Effects of Bank Acquisitions.” Journal of Banking and Finance 18, December, 1135-1154, (1994).

    Google Scholar 

  • Malatesta, P. H., “Measuring Abnormal Performance: The Event Parameter Approach Using Joint Generalized Least Squares.” Journal of Financial and Quantitative Analysis 21, March, 27-38, (1986).

    Google Scholar 

  • Mandlebrot, B., “The Variation of Certain Speculative Prices.” Journal of Business 36, 394-419, (1963).

    Google Scholar 

  • Meulbroek, L. and C. Hart, “The Effect of Illegal Insider Trading on Takeover Premia.” European Finance Review 1, 51-80, (1997).

    Google Scholar 

  • Mikkelson, W. H. and M. M. Partch, “Valuation Effects of Security Offerings and the Issuance Process.” Journal of Financial Economics 15, 31-60, (1986).

    Google Scholar 

  • Scholes, M. and J. T. Williams, “Estimating Betas from Nonsynchronous Data.” Journal of Financial Economics 5(3), 309-327, (1977).

    Google Scholar 

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Authors and Affiliations

  1. Department of Finance, Texas Tech University, 907 Rawls College of Business Admin., Lubbock, TX, 79409-2101

    Ken B. Cyree

  2. The University of Tennessee, 423 Stokely Management Center, Knoxville, TN, 37996-0540

    Ramon P. DeGennaro (SunTrust Professor of Finance)

Authors
  1. Ken B. Cyree
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  2. Ramon P. DeGennaro
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Correspondence to Ramon P. DeGennaro.

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Cyree, K.B., DeGennaro, R.P. A Generalized Method for Detecting Abnormal Returns and Changes in Systematic Risk. Review of Quantitative Finance and Accounting 19, 399–416 (2002). https://doi.org/10.1023/A:1021162208290

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  • DOI: https://doi.org/10.1023/A:1021162208290

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