IDEAS home Printed from https://ideas.repec.org/a/taf/defpea/v20y2009i2p79-93.html
   My bibliography  Save this article

9/11: What Did We Know And When Did We Know It?

Author

Listed:
  • Beom Lee
  • Walter Enders
  • Todd Sandler

Abstract

In February 1998, Osama Bin Laden published a signed statement calling for a fatwa against the United States for its having 'declared war against God'. As we now know, the fatwa resulted in the unprecedented attack of 9/11. The issue of whether or not 9/11 was in any way predictable culminated in the public debate between Richard Clarke, former CIA Director George Tenet and the White House. This paper examines whether there was any evidence of a structural change in the terrorism data at or after February 1998 but prior to June 2001, controlling for the possibility of other breaks in earlier periods. In doing so, we use the standard Bai-Perron procedure and our sequential importance sampling (SIS) Markov Chain Monte Carlo (MCMC) method for identifying an unknown number of breaks at unknown dates. We conclude that sophisticated statistical time-series analysis would not have predicted 9/11.

Suggested Citation

  • Beom Lee & Walter Enders & Todd Sandler, 2009. "9/11: What Did We Know And When Did We Know It?," Defence and Peace Economics, Taylor & Francis Journals, vol. 20(2), pages 79-93.
  • Handle: RePEc:taf:defpea:v:20:y:2009:i:2:p:79-93
    DOI: 10.1080/10242690701701968
    as

    Download full text from publisher

    File URL: http://www.tandfonline.com/doi/abs/10.1080/10242690701701968
    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. Phillips Peter J, 2011. "Lone Wolf Terrorism," Peace Economics, Peace Science, and Public Policy, De Gruyter, vol. 17(1), pages 1-31, March.
    2. Brandt, Patrick T. & Sandler, Todd, 2009. "Hostage taking: Understanding terrorism event dynamics," Journal of Policy Modeling, Elsevier, vol. 31(5), pages 758-778, September.
    3. Kollias, Christos & Messis, Petros & Mylonidis, Nikolaos & Paleologou, Suzanna-Maria, 2009. "Terrorism and the effectiveness of security spending in Greece: Policy implications of some empirical findings," Journal of Policy Modeling, Elsevier, vol. 31(5), pages 788-802, September.

    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:taf:defpea:v:20:y:2009:i:2:p:79-93. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Chris Longhurst). General contact details of provider: http://www.tandfonline.com/GDPE20 .

    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 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.

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

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.