Theoretical Economics 7 (2012), 663–688

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### Strategy-proof voting for multiple public goods

*Alexander Reffgen, Lars-Gunnar Svensson*

#### Abstract

In a voting model where the set of feasible alternatives is a subset of a product set $A = A_1\times\cdots\ldots{}A_m$ of $m$ finite categories, we characterize the set of all strategy-proof social choice functions for three different types of preference domains over $A$, namely for the domains of additive, completely separable, and weakly separable preferences over $A$.

Keywords: Multiple public goods, strategy-proofness, voting under constraints, additive preferences, separable preferences

JEL classification: D71

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