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choice-augmented deferred acceptance

Author(s): 
Atila Abdurkadiroglu, Yoen-Koo Che, and Yosuke Yasuda
日付: 
Fri, 2008-11-28
Abstract: 
Truthful revelation of preferences has emerged as a desideratum
in the design of school choice programs. Gale-Shapley’s deferred acceptance
mechanism is strategy-proof for students but limits their ability to communi-
cate their preference intensities. This results in ex-ante inefficiency when ties
at school preferences are broken randomly. We propose a variant of deferred
acceptance mechanism which allows students to influence how they are treated
in ties. It maintains truthful revelation of ordinal preferences and supports a
greater scope of efficiency.