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Corruption in Professional Sumo: An Update on Duggan and Levitt's Study

Author

Listed:
  • Helmut Dietl

    (Institute for Strategy and Business Economics, University of Zurich)

  • Markus Lang

    (Institute for Strategy and Business Economics, University of Zurich)

  • Stephan Werner

    (Institute for Strategy and Business Economics, University of Zurich)

Abstract
In the December 2002 issue of the American Economic Review, Mark Duggan and Steven D. Levitt published an article on corruption in professional sumo. In the present paper, we update Duggan and Levitt's study to take into account changes since January 2000. We find strong statistical evidence that corruption is reduced after January 2000 but reappears in the period from 2003 to 2006. In addition, we can show that the non-linearity in the incentive structure disappears from 2000 to 2003 and reappears after 2003. These results confirm the findings of Duggan and Levitt, who suggest that the structure of promotion in rankings gives incentives to the sumo wrestlers to rig matches.

Suggested Citation

  • Helmut Dietl & Markus Lang & Stephan Werner, 2008. "Corruption in Professional Sumo: An Update on Duggan and Levitt's Study," Working Papers 0824, University of Zurich, Institute for Strategy and Business Economics (ISU), revised Jun 2009.
    • Handle: RePEc:iso:wpaper:0824
    as

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    File URL: http://web.holycross.edu/RePEc/spe/DietlLangWerner_Sumo.pdf
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    References listed on IDEAS

    as
    1. Beck, Nathaniel & Katz, Jonathan N., 1995. "What To Do (and Not to Do) with Time-Series Cross-Section Data," American Political Science Review, Cambridge University Press, vol. 89(3), pages 634-647, September.
    2. Mark Duggan & Steven D. Levitt, 2002. "Winning Isn't Everything: Corruption in Sumo Wrestling," American Economic Review, American Economic Association, vol. 92(5), pages 1594-1605, December.
    3. Stefano DellaVigna & Eliana La Ferrara, 2010. "Detecting Illegal Arms Trade," American Economic Journal: Economic Policy, American Economic Association, vol. 2(4), pages 26-57, November.
    Full references (including those not matched with items on IDEAS)

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    Cited by:

    1. Rodney J. Paul & Andrew P. Weinbach, 2011. "Investigating Allegations of Pointshaving in NCAA Basketball Using Actual Sportsbook Betting Percentages," Journal of Sports Economics, , vol. 12(4), pages 432-447, August.

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    More about this item

    Keywords

    Sumo wrestling; corruption; incentive scheme; social ties; monitoring;
    All these keywords.

    JEL classification:

    • K42 - Law and Economics - - Legal Procedure, the Legal System, and Illegal Behavior - - - Illegal Behavior and the Enforcement of Law
    • L83 - Industrial Organization - - Industry Studies: Services - - - Sports; Gambling; Restaurants; Recreation; Tourism
    • M52 - Business Administration and Business Economics; Marketing; Accounting; Personnel Economics - - Personnel Economics - - - Compensation and Compensation Methods and Their Effects

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