IDEAS home Printed from https://ideas.repec.org/a/kap/rqfnac/v23y2004i3p251-274.html
   My bibliography  Save this article

An Evaluation of Testing Procedures for Long Horizon Event Studies

Author

Listed:
  • James S. Ang
  • Shaojun Zhang

Abstract

We conduct a comprehensive simulation study to evaluate testing procedures for long horizon event studies. The simulation results raise the following concerns about some popular practices: (1) using the four-factor model that includes the Fama-French three factors and a momentum-related factor causes serious over rejection of the null hypothesis; (2) using reference portfolios as benchmark tends to overestimate event firms' long-term returns; and (3) the computation-intensive bootstrap test has low power for long event horizons. Moreover, unless the number of event firms in a study is very large, all testing procedures suffer substantial loss of power quickly as event horizon increases, especially for samples of small firms. Of particular interest, the combination of the nonparametric sign test with a single firm benchmark shows the best performance consistently in our simulations.

Suggested Citation

  • James S. Ang & Shaojun Zhang, 2004. "An Evaluation of Testing Procedures for Long Horizon Event Studies," Review of Quantitative Finance and Accounting, Springer, vol. 23(3), pages 251-274, November.
    • Handle: RePEc:kap:rqfnac:v:23:y:2004:i:3:p:251-274
    as

    Download full text from publisher

    File URL: http://journals.kluweronline.com/issn/0924-865X/contents
    Download Restriction: Access to full text is restricted to subscribers.
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Kam Chan & Yung Lo, 2011. "Credit ratings and long-term IPO performance," Journal of Economics and Finance, Springer;Academy of Economics and Finance, vol. 35(4), pages 473-483, October.
    2. Alan Gregory & Rajesh Tharyan & Ian Tonks, 2013. "More than Just Contrarians: Insider Trading in Glamour and Value Firms," European Financial Management, European Financial Management Association, vol. 19(4), pages 747-774, September.
    3. Gunturu, Vamsi Krishna & Abidi, Qambar, 2023. "A study on impact of IBC," MPRA Paper 116850, University Library of Munich, Germany.
    4. Michael Cichello & Douglas Lamdin, 2006. "Event Studies and the Analysis of Antitrust," International Journal of the Economics of Business, Taylor & Francis Journals, vol. 13(2), pages 229-245.
    5. Christina Dargenidou & Alan Gregory & Shan Hua, 2016. "How far does financial reporting allow us to judge whether M&A activity is successful?," Accounting and Business Research, Taylor & Francis Journals, vol. 46(5), pages 467-499, August.
    6. Sorokina, Nonna & Thornton, John H., 2016. "Reactions of equity markets to recent financial reforms," Journal of Economics and Business, Elsevier, vol. 87(C), pages 50-69.
    7. Philip Brown & Andrew Ferguson & Kate Stone, 2008. "Share Purchase Plans in Australia: Issuer Characteristics and Valuation Implications," Australian Journal of Management, Australian School of Business, vol. 33(2), pages 307-332, December.
    8. Ronald Bremer & Bonnie Buchanan & Philip English, 2011. "The advantages of using quarterly returns for long-term event studies," Review of Quantitative Finance and Accounting, Springer, vol. 36(4), pages 491-516, May.
    9. Pawel Bilinski & Norman Strong, 2013. "Managers’ Private Information, Investor Underreaction and Long†Run SEO Performance," European Financial Management, European Financial Management Association, vol. 19(5), pages 956-990, November.
    10. Wijayana, Singgih & Gray, Sidney J., 2018. "Capital market consequences of cultural influences on earnings: The case of cross-listed firms in the U.S. stock market," International Review of Financial Analysis, Elsevier, vol. 57(C), pages 134-147.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:kap:rqfnac:v:23:y:2004:i:3:p:251-274. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://springer.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.