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arXiv · 2002.06341

The structure of two-valued strategy-proof social choice functions with indifference

Achille Basile·Surekha Rao·K. P. S. Bhaskara Rao
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Abstract

We give a structure theorem for all coalitionally strategy-proof social choice functions whose range is a subset of cardinality two of a given larger set of alternatives. We provide this in the case where the voters/agents are allowed to express indifference and the domain consists of profiles of preferences over a society of arbitrary cardinality. The theorem, that takes the form of a representation formula, can be used to construct all functions under consideration.

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Achille Basile, Surekha Rao, K. P. S. Bhaskara Rao. 2020-02-15. The structure of two-valued strategy-proof social choice functions with indifference. https://arxiv.org/abs/2002.06341

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