Manipulability in Matching Markets: Conflict and Coincidence of Interests

Abstract

We study comparative statics of manipulations by women in the men-proposing deferred acceptance mechanism in the two-sided one-to-one marriage market. We prove that if a group of women employs truncation strategies or weakly successfully manipulates, then all other women weakly benefit and all men are weakly harmed. We show that our results do not appropriately generalize to the many-to-one college admissions model.

Published as: Manipulability in Matching Markets: Conflict and Coincidence of Interests in Social Choice and Welfare , Vol. 39, No. 1, 23--33, January, 2011