School Admissions Reform in Chicago and England: Comparing Mechanisms by their Vulnerability to Manipulation

In Fall 2009, Chicago authorities abandoned a school assignment mechanism midstream, citing concerns about its vulnerability to manipulation. Nonetheless, they asked thousands of applicants to re-rank schools in a new mechanism that is also manipulable. This paper introduces a method to compare mech...

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Bibliographic Details
Published inThe American economic review Vol. 103; no. 1; pp. 80 - 106
Main Authors Pathak, Parag A., Sönmez, Tayfun
Format Journal Article
LanguageEnglish
Published Nashville American Economic Association 01.02.2013
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Summary:In Fall 2009, Chicago authorities abandoned a school assignment mechanism midstream, citing concerns about its vulnerability to manipulation. Nonetheless, they asked thousands of applicants to re-rank schools in a new mechanism that is also manipulable. This paper introduces a method to compare mechanisms by their vulnerability to manipulation. Our methodology formalizes how the old mechanism is at least as manipulable as any other plausible mechanism, including the new one. A number of similar transitions took place in England after the widely popular Boston mechanism was ruled illegal in 2007. Our approach provides support for these and other recent policy changes.
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ISSN:0002-8282
1944-7981
DOI:10.1257/aer.103.1.80