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Event-Induced Volatility and Tests for Abnormal Performance

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  • Robert Savickas
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    Abstract

    I analyze a simple test statistic for mean abnormal returns in the presence of stochastic volatility during both event and nonevent windows and in the presence of event-induced variance increases. Unlike previous tests, the parametric test evaluated here does not require that the volatility effect of the event be the same across all securities. Simulations show that the test exhibits nontrivial gains in power over previously developed parametric and nonparametric tests, and the true null hypothesis is rejected at appropriate levels. 2003 The Southern Finance Association and the Southwestern Finance Association.

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    Bibliographic Info

    Article provided by Southern Finance Association & Southwestern Finance Association in its journal Journal of Financial Research.

    Volume (Year): 26 (2003)
    Issue (Month): 2 ()
    Pages: 165-178

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    Handle: RePEc:bla:jfnres:v:26:y:2003:i:2:p:165-178

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    Web page: http://www.southwesternfinance.org/
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    Cited by:
    1. Aktas, Nihat & de Bodt, Eric & Cousin, Jean-Gabriel, 2007. "Event studies with a contaminated estimation period," Journal of Corporate Finance, Elsevier, vol. 13(1), pages 129-145, March.
    2. Mazouz, Khelifa & Saadouni, Bharim, 2007. "New evidence on the price and liquidity effects of the FTSE 100 index revisions," International Review of Financial Analysis, Elsevier, vol. 16(3), pages 223-241.
    3. John J. García & Francesc Trillas, 2011. "Control corporativo y riqueza de los accionistas en el sector eléctrico europeo (2000-2007)," DOCUMENTOS DE TRABAJO CIEF 010660, UNIVERSIDAD EAFIT.
    4. repec:hal:journl:halshs-00115655 is not listed on IDEAS
    5. Gunther Capelle-Blancard & Nicolas Couderc, 2005. "What drives the market value of firms in the Defense industry ?," Cahiers de la Maison des Sciences Economiques bla06037, Université Panthéon-Sorbonne (Paris 1), revised Apr 2006.
    6. Kryzanowski, Lawrence & Lazrak, Skander & Rakita, Ian, 2010. "Behavior of liquidity and returns around Canadian seasoned equity offerings," Journal of Banking & Finance, Elsevier, vol. 34(12), pages 2954-2967, December.
    7. Carl Pacini & William Hillison, 2003. "Client-firm market reaction to regulatory action against a major accounting firm," Journal of Economics and Finance, Springer, vol. 27(3), pages 279-299, September.
    8. John J. García & Francesc Trillas, 2012. "Regulatory Reform and Corporate Control in European Energy Industries," DOCUMENTOS DE TRABAJO CIEF 010664, UNIVERSIDAD EAFIT.
    9. John J. García & Francesc Trillas, 2013. "European energy industry shocks, corporate control and firms' value," DOCUMENTOS DE TRABAJO CIEF 010928, UNIVERSIDAD EAFIT.
    10. Devaney, Michael, 2012. "Financial crisis, REIT short-sell restrictions and event induced volatility," The Quarterly Review of Economics and Finance, Elsevier, vol. 52(2), pages 219-226.
    11. Mazouz, Khelifa & Joseph, Nathan Lael & Palliere, Clement, 2009. "Stock index reaction to large price changes: Evidence from major Asian stock indexes," Pacific-Basin Finance Journal, Elsevier, vol. 17(4), pages 444-459, September.
    12. Ulrich Oberndorfer & Marcus Wagner & Andreas Ziegler, 2011. "Does the Stock Market Value the Inclusion in a Sustainability Stock Index? An Event Study Analysis for German Firms," MAGKS Papers on Economics 201130, Philipps-Universität Marburg, Faculty of Business Administration and Economics, Department of Economics (Volkswirtschaftliche Abteilung).
    13. Campbell, Cynthia J. & Cowan, Arnold R. & Salotti, Valentina, 2010. "Multi-country event-study methods," Journal of Banking & Finance, Elsevier, vol. 34(12), pages 3078-3090, December.
    14. Chortareas, Georgios & Cipollini, Andrea & Eissa, Mohamed Abdelaziz, 2012. "Switching to floating exchange rates, devaluations, and stock returns in MENA countries," International Review of Financial Analysis, Elsevier, vol. 21(C), pages 119-127.
    15. 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.
    16. Ulrich Oberndorfer & Dirk Ulbricht & Janina Ketterer, 2007. "Lost in Transmission? Stock Market Impacts of the 2006 European Gas Crisis," Ifo Working Paper Series Ifo Working Paper No. 41, Ifo Institute for Economic Research at the University of Munich.
    17. Demirer, RIza & Kutan, Ali M., 2010. "The behavior of crude oil spot and futures prices around OPEC and SPR announcements: An event study perspective," Energy Economics, Elsevier, vol. 32(6), pages 1467-1476, November.

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