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The Levitt (2004) model of sportsbook behavior is tested using actual percentages of dollars bet on NFL games from the internet sportsbook, Sportsbook.com. Simple regression results suggest that Sportsbook.com sets pointspreads (prices) to maximize profits, as the Levitt model assumes, not to balance the betting dollars, as the traditional model of sportsbook behavior assumes. Sportsbook.com is found to accept significantly more wagering dollars on road favorites, larger favorites, and on the over for the highest totals in the over/under betting market. Bettor liquidity constraints and sportsbook betting limits may help explain this result.
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Paul et al. (2012) studied this question.
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