Changing the Boston School Choice Mechanism

Atila Abdulkadiroglu, Parag Pathak, Alvin Roth and Tayfun Sönmez
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Atila Abdulkadiroglu: Columbia University

No 639, Boston College Working Papers in Economics from Boston College Department of Economics

Abstract: In July 2005 the Boston School Committee voted to replace the existing Boston school choice mechanism with a deferred acceptance mechanism that simplifies the strategic choices facing parents. This paper presents the empirical case against the previous Boston mechanism, a priority matching mechanism, and the case in favor of the change to a strategy-proof mechanism. Using detailed records on student choices and assignments, we present evidence both of sophisticated strategic behavior among some parents, and of unsophisticated strategic behavior by others. We find evidence that some parents pay close attention to the capacity constraints of different schools, while others appear not to. In particular, we show that many unassigned students could have been assigned to one of their stated choices with a different strategy under the current mechanism. This interaction between sophisticated and unsophisticated players identifies a new rationale for strategy-proof mechanisms based on fairness, and was a critical argument in Boston's decision to change the mechanism. We then discuss the considerations that led to the adoption of a deferred acceptance mechanism as opposed to the (also strategy-proof) top trading cycles mechanism.

Pages: 58 pages
Date: 2006-01-07
New Economics Papers: this item is included in nep-dcm and nep-ure
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (138)

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Working Paper: Changing the Boston School Choice Mechanism (2006)
Working Paper: Changing the Boston School Choice Mechanism (2006)
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Persistent link: https://EconPapers.repec.org/RePEc:boc:bocoec:639

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