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Sample selection and event study estimation

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  • Ahern, Kenneth R.

Abstract

The anomalies literature suggests that pricing is biased systematically for securities grouped by certain characteristics. If these characteristics are related to selection in an event study sample, imprecise predictions of an event study method may produce erroneous results. This paper performs simulations to compare a battery of short-run event study prediction and testing methods where samples are grouped by market equity, prior returns, book-to-market, and earnings-to-price ratios. Significant statistical errors are reported for both standard and newer methods, including three- and four-factor models. A characteristic-based benchmark model produces the least biased returns with the least rejection errors in all samples.

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Bibliographic Info

Article provided by Elsevier in its journal Journal of Empirical Finance.

Volume (Year): 16 (2009)
Issue (Month): 3 (June)
Pages: 466-482

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Handle: RePEc:eee:empfin:v:16:y:2009:i:3:p:466-482

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Web page: http://www.elsevier.com/locate/jempfin

Related research

Keywords: Event studies Nonparametric test statistics Multifactor models Characteristic-based benchmark model;

References

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Citations

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Cited by:
  1. Lopatta, Kerstin & Kaspereit, Thomas, 2014. "The cross-section of returns, benchmark model parameters, and idiosyncratic volatility of nuclear energy firms after Fukushima Daiichi," Energy Economics, Elsevier, vol. 41(C), pages 125-136.
  2. Abreu, José Filipe & Gulamhussen, Mohamed Azzim, 2013. "The stock market reaction to the public announcement of a supranational list of too-big-to-fail banks during the financial crisis," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 25(C), pages 49-72.
  3. Adrian Wai Kong Cheung, 2011. "Do Stock Investors Value Corporate Sustainability? Evidence from an Event Study," Journal of Business Ethics, Springer, vol. 99(2), pages 145-165, March.
  4. Kryzanowski, Lawrence & Mohsni, Sana, 2010. "Capital returns, costs and EVA for Canadian firms," The North American Journal of Economics and Finance, Elsevier, vol. 21(3), pages 256-273, December.
  5. W. K. Adrian Cheung & Eduardo Roca, 2010. "Do Pacific Basin Investors Value Corporate Sustainability?," Discussion Papers in Finance finance:201016, Griffith University, Department of Accounting, Finance and Economics.
  6. Godlewski, Christophe J. & Turk-Ariss, Rima & Weill, Laurent, 2013. "Sukuk vs. conventional bonds: A stock market perspective," Journal of Comparative Economics, Elsevier, vol. 41(3), pages 745-761.
  7. Fernandes, Marcelo & Mergulhão, João Filipe Bernardes Volkman, 2013. "Anticipatory effects in the FTSE 100 index revisions," Textos para discussão 345, Escola de Economia de São Paulo, Getulio Vargas Foundation (Brazil).
  8. Jory, Surendranath R. & Madura, Jeff & Ngo, Thanh N., 2012. "Deal structure decision in the global market for divested assets," International Review of Financial Analysis, Elsevier, vol. 24(C), pages 104-116.
  9. Saif Ullah & Nadia Massoud & Barry Scholnick, 2014. "The Impact of Fraudulent False Information on Equity Values," Journal of Business Ethics, Springer, vol. 120(2), pages 219-235, March.
  10. Gurun, Ayfer, 2013. "Business strategy and financial consequences: The case of antidumping filings," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 24(C), pages 127-138.

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