A theory of voting in large elections
نویسندگان
چکیده
This paper provides a game-theoretic model of probabilistic voting and then examines the incentives faced by candidates in a spatial model of elections. In our model, voters’ strategies form a Quantal Response Equilibrium (QRE), which merges strategic voting and probabilistic behavior. We first show that a QRE in the voting game exists for all elections with a finite number of candidates, and then proceed to show that, with enough voters and the addition of a regularity condition on voters’ utilities, a Nash equilibrium profile of platforms exists when candidates seek to maximize their expected margin of victory. This equilibrium (1) consists of all candidates converging to the policy that maximizes the expected sum of voters’ utilities, (2) exists even when voters can abstain, and (3) is unique when there are only 2 candidates. Journal of Economic Literature Classification Numbers: D71, D72, D50, D60.
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ورودعنوان ژورنال:
- Games and Economic Behavior
دوره 57 شماره
صفحات -
تاریخ انتشار 2006