IDEAS home Printed from https://ideas.repec.org/a/bla/jfnres/v25y2002i4p447-462.html
   My bibliography  Save this article

On the Statistical Significance of Event Effects on Unsystematic Volatility

Author

Listed:
  • Jimmy E. Hilliard
  • Robert Savickas

Abstract

We develop a method for determining the significance of the effect of a certain event (stock split, corporate restructuring, change in regulation, etc.) on unsystematic volatility of asset returns. Simulations show that the suggested tests reject the true null hypothesis of no effect on volatility at appropriate levels, whereas the rejection rates of a false null hypothesis increase with the magnitude of the effect. An application of the method to corporate spin‐offs reveals statistically significant and long‐lasting estimated increases in unsystematic volatility of parent companies' returns.

Suggested Citation

  • Jimmy E. Hilliard & Robert Savickas, 2002. "On the Statistical Significance of Event Effects on Unsystematic Volatility," Journal of Financial Research, Southern Finance Association;Southwestern Finance Association, vol. 25(4), pages 447-462, December.
    • Handle: RePEc:bla:jfnres:v:25:y:2002:i:4:p:447-462
    DOI: 10.1111/1475-6803.00030
    as

    Download full text from publisher

    File URL: https://doi.org/10.1111/1475-6803.00030
    Download Restriction: no
    File URL: https://libkey.io/10.1111/1475-6803.00030?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

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


    Cited by:

    1. Elisa Navarra, 2022. "Stock Market Response to Firms’ Misconduct," Working Papers ECARES 2022-40, ULB -- Universite Libre de Bruxelles.
    2. Refai, Hisham Al & Eissa, Mohamed Abdelaziz, 2017. "The impact of FIFA’s official announcements on the stock market of Qatar: The case of the 2022 World Cup," Research in International Business and Finance, Elsevier, vol. 41(C), pages 347-353.
    3. Mnasri, Ayman & Nechi, Salem, 2016. "Impact of terrorist attacks on stock market volatility in emerging markets," Emerging Markets Review, Elsevier, vol. 28(C), pages 184-202.
    4. Eshan Ahluwalia & Trilochan Tripathy & Ajay Kumar Mishra, 2023. "Measuring Volatility Persistence and Asymmetric Effects Around Index Rebalancing of Nifty Indices," International Journal of Economics and Finance, Canadian Center of Science and Education, vol. 15(5), pages 1-86, May.
    5. Bialkowski, Jedrzej & Gottschalk, Katrin & Wisniewski, Tomasz Piotr, 2008. "Stock market volatility around national elections," Journal of Banking & Finance, Elsevier, vol. 32(9), pages 1941-1953, September.
    6. Kamphol Panyagometh, 2020. "The Effects of Pandemic Event on the Stock Exchange of Thailand," Economies, MDPI, vol. 8(4), pages 1-22, October.
    7. 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.
    8. Essaddam, Naceur & Karagianis, John M., 2014. "Terrorism, country attributes, and the volatility of stock returns," Research in International Business and Finance, Elsevier, vol. 31(C), pages 87-100.
    9. Sun, Changyou & Rahman, Mohammad M. & Munn, Ian A., 2013. "Adjustment of stock prices and volatility to changes in industrial timberland ownership," Forest Policy and Economics, Elsevier, vol. 26(C), pages 91-101.

    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:bla:jfnres:v:25:y:2002:i:4:p:447-462. 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: Wiley Content Delivery (email available below). General contact details of provider: https://edirc.repec.org/data/sfaaaea.html .

    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.