What Drives Demand for State-Run Lotteries? Evidence and Welfare Implications

Benjamin B Lockwood, Hunt Allcott, Dmitry Taubinsky and Afras Sial

The Review of Economic Studies, 2025, vol. 92, issue 4, 2578-2623

Abstract: We use natural experiments embedded in state-run lotteries and a new nationally representative survey to provide reduced-form and structural estimates of risk preferences and behavioural biases in lottery demand, and to explore the implications for optimal lottery design. We find that sales respond more to the expected value of the jackpot than to price but are unresponsive to variation in the second prize—a pattern that is consistent with probability weighting but is inconsistent with standard parameterizations. In the survey, we find that lottery spending decreases modestly with income and is strongly associated with measures of innumeracy, poor statistical reasoning, and other proxies for behavioural bias, which also decline with income. Regression predictions suggest that Americans would spend 43% less on lotteries if they were unbiased, while the remaining lottery demand is due to other factors such as anticipatory utility or entertainment value. We use these empirical moments to estimate a model of socially optimal lottery design. In the model, current multi-state lottery designs increase welfare but may harm heavy spenders.

Keywords: Behavioural public economics; Behavioural welfare analysis; Probability weighting; Lotteries (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:oup:restud:v:92:y:2025:i:4:p:2578-2623.

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