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Winning Isn't Everything: Corruption in Sumo Wrestling

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  • Mark Duggan
  • Steven D. Levitt

Abstract

Although the theoretical literature on corruption is well developed, empirical work in this area has lagged because it has proven difficult to isolate corrupt behavior in the data. In this paper, we look for evidence of corruption in an unlikely place: the highest echelons of Japanese sumo wrestling. This paper provides strong statistical evidence documenting match rigging in sumo wrestling. A non-linearity in the incentive structure of promotion leads to gains from trade between wrestlers on the margin for achieving a winning record and their opponents. We show that wrestlers win a disproportionate share of the matches when they are on the margin. Increased effort can not explain the findings. Winning on the bubble is more frequent when the two competitors have met often in the past. Success on the bubble tends to rise over the course of a wrestler's career, but declines in his last year, consistent with the game theoretic predictions. Wrestlers who are victorious when on the bubble lose more frequently than would be expected the next time they meet that opponent, suggesting that part of the payment for throwing a match is future payment in kind. Systematic differences across wrestling stables suggest that the stables play a role in facilitating the corruption. In times of increased media scrutiny, the match rigging disappears.

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Bibliographic Info

Article provided by American Economic Association in its journal American Economic Review.

Volume (Year): 92 (2002)
Issue (Month): 5 (December)
Pages: 1594-1605

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Handle: RePEc:aea:aecrev:v:92:y:2002:i:5:p:1594-1605

Note: DOI: 10.1257/000282802762024665
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  1. Mauro, Paolo, 1995. "Corruption and Growth," The Quarterly Journal of Economics, MIT Press, vol. 110(3), pages 681-712, August.
  2. Chevalier, J. & Ellison, G., 1996. "Risk Taking by Mutual Funds as a Response to Incentives," Working papers 96-3, Massachusetts Institute of Technology (MIT), Department of Economics.
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  6. Di Tella, Rafael & Schargrodsky, Ernesto, 2003. "The Role of Wages and Auditing during a Crackdown on Corruption in the City of Buenos Aires," Journal of Law and Economics, University of Chicago Press, vol. 46(1), pages 269-92, April.
  7. Gary S. Becker & George J. Stigler, 1974. "Law Enforcement, Malfeasance, and Compensation of Enforcers," The Journal of Legal Studies, University of Chicago Press, vol. 3(1), pages 1-18, January.
  8. 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.
  9. Krueger, Anne O, 1974. "The Political Economy of the Rent-Seeking Society," American Economic Review, American Economic Association, vol. 64(3), pages 291-303, June.
  10. Rose-Ackerman, Susan, 1975. "The economics of corruption," Journal of Public Economics, Elsevier, vol. 4(2), pages 187-203, February.
  11. Robert H. Porter & J. Douglas Zona, 1992. "Detection of Bid Rigging in Procurement Auctions," NBER Working Papers 4013, National Bureau of Economic Research, Inc.
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