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Efficiency, Fairness, and Incentives in Matching Markets

Microeconomics Seminar 2016-2017
joint with the Département de sciences économiques, Université de Montréal

room C-6149 (U. de Montréal, Pavillon Lionel-Groulx, 3150, rue Jean-Brillant)

Organizers : Deniz Dizdar (U. of Montreal) and Sean Horan (U. of Montreal)
Efficiency and symmetric treatment of agents are the primary goals of resource allocation in environments without transfers. Focusing on ordinal mechanisms in which no small group of agents can substantially change the allocations of others, we show that all asymptotically efficient, symmetric, and asymptotically strategy-proof mechanisms lead to the same allocations in large markets. In particular, many mechanisms—both well-known and newly developed—are allocationally equivalent. This equivalence is consistent with prior empirical findings that different mechanisms lead to similar allocations in school choice.

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