Expanding "Choice" in School Choice

https://www.grips.ac.jp/list/jp/facultyinfo/yasuda_yosuke/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 communicate 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 in uence how they are treated in ties. It maintains truthful revelation of ordinal preferences and supports a greater scope of efficiency.経済学 / Economicstechnical repor