Testing Market Efficiency: Evidence from the NFL Sports Betting Market.
This article examines the efficiency of the National Football League betting market. The standard ordinary least squares regression methodology is replaced by a probit model. This circumvents potential econometric problems, and allows the authors to implement more sophisticated betting strategies where bets are placed only when there is a relatively high probability of success. In-sample tests indicate that probit-based betting strategies generate statistically significant profits. Whereas the profitability of a number of these betting strategies is confirmed by out-of-sample testing, there is some inconsistency among the remaining out-of-sample predictions. The authors' results also suggest that widely documented inefficiencies in this market tend to dissipate over time. Copyright 1997 by American Finance Association.
Year of publication: |
1997
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Authors: | Gray, Philip K ; Gray, Stephen F |
Published in: |
Journal of Finance. - American Finance Association - AFA, ISSN 1540-6261. - Vol. 52.1997, 4, p. 1725-37
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Publisher: |
American Finance Association - AFA |
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