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"White men can't jump," but would you bet on it?

Author

Listed:
  • Igan, Deniz
  • Pinheiro, Marcelo
  • Smith, John

Abstract

We identify an otherwise efficient market in which racial stereotypes affect market outcomes. In this market, there are well-defined prices, well-defined outcomes, a finite time horizon, and readily available information. The market appears to efficiently process the available information, with the exception of the race of the participants. We examine data on point spreads for NBA games over the 15 seasons from 1993-94 to 2007-08. We find evidence that the racial composition of the team is related to the size of the spread and their performance against the spread. Specifically, we find that a more black team tends to face a larger point spread and that these teams perform worse against the spread. It is possible that this effect is driven by the bookmakers setting a biased point spread or driven by excessive betting on the more black team. Using a different data set containing the movement of the spread, we do not find a relationship between the movement of the spread and the racial composition of the team. As a result, we favor the explanation that the bookmakers set a biased point spread.

Suggested Citation

  • Igan, Deniz & Pinheiro, Marcelo & Smith, John, 2011. ""White men can't jump," but would you bet on it?," MPRA Paper 31469, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:31469
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    References listed on IDEAS

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    Cited by:

    1. Arne Feddersen & Brad R. Humphreys & Brian P. Soebbing, 2018. "Sentiment Bias in National Basketball Association Betting," Journal of Sports Economics, , vol. 19(4), pages 455-472, May.

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    More about this item

    Keywords

    Stereotypes; Point spread; Market efficiency;
    All these keywords.

    JEL classification:

    • D03 - Microeconomics - - General - - - Behavioral Microeconomics: Underlying Principles
    • J15 - Labor and Demographic Economics - - Demographic Economics - - - Economics of Minorities, Races, Indigenous Peoples, and Immigrants; Non-labor Discrimination
    • G00 - Financial Economics - - General - - - General

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