An Impure Public Good Model with Lotteries in Large Groups

Working Paper: CEPR ID: DP8319

Authors: Antonio Cabrales; Hayde Lugo

Abstract: We analyze the effect of a large group on an impure public goods model with lotteries. We show that as populations get large, and with selfish preferences, the level of contributions converges to the one given by voluntary contributions. With altruistic preferences (of the warm glow type), the contributions converge to a level strictly higher than those given by voluntary contributions, even though in general they do not yield first-best levels.

Keywords: efficiency; lotteries; public good; warm glow

JEL Codes: D64; H21; H41


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
population size (J11)level of contributions (D64)
warm glow preferences (D15)level of contributions (D64)
altruistic preferences (D64)level of contributions (D64)

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