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Celebrity Endorsements, Firm Value, and Reputation Risk: Evidence from the Tiger Woods Scandal

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  • Christopher R. Knittel

    (Sloan School of Management, Massachusetts Institute of Technology, Cambridge, Massachusetts 20142; and National Bureau of Economic Research, Cambridge, Massachusetts 02138)

  • Victor Stango

    (Graduate School of Management, University of California, Davis, Davis, California 95616)

Abstract

We estimate the stock market effects of the Tiger Woods scandal on his sponsors and sponsors' competitors. In the 10--15 trading days after the onset of the scandal, the full portfolio of sponsors lost more than 2% of market value, with losses concentrated among the core three sponsors: Electronic Arts, Nike, and PepsiCo (Gatorade). Sponsors' day-by-day losses correlate strongly with Google search intensity regarding the endorsement-related impact of the scandal, as well as with qualitative indicators of “endorsement-related news.” At least some sponsors' losses were competitors' gains, suggesting that endorsement deals are partially a business-stealing strategy. However, competitors who were themselves celebrity endorsement intensive fared relatively worse than those who were not endorsement intensive, and that difference also correlates day by day with news/search intensity regarding the scandal. It appears that the scandal sent a negative marketwide signal about the reputation risk associated with celebrity endorsements. This paper was accepted by Pradeep Chintagunta, marketing.

Suggested Citation

  • Christopher R. Knittel & Victor Stango, 2014. "Celebrity Endorsements, Firm Value, and Reputation Risk: Evidence from the Tiger Woods Scandal," Management Science, INFORMS, vol. 60(1), pages 21-37, January.
    • Handle: RePEc:inm:ormnsc:v:60:y:2014:i:1:p:21-37
    DOI: 10.1287/mnsc.2013.1749
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    References listed on IDEAS

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