Breaking Ties: Regression Discontinuity Design Meets Market Design

Atila Abdulkadiroglu, Joshua Angrist, Yusuke Narita () and Parag Pathak
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Atila Abdulkadiroglu: Duke University

No 2019-024, Working Papers from Human Capital and Economic Opportunity Working Group

Abstract: Centralized school assignment algorithms must distinguish between applicants with the same preferences and priorities. This is done with randomly assigned lottery numbers, non-lottery tie-breakers like test scores, or both. The New York City public high school match illustrates the latter, using test scores, grades, and interviews to rank applicants to screened schools, combined with lottery tie-breaking at unscreened schools. We show how to identify causal effects of school attendance in such settings. Our approach generalizes regression discontinuity designs to allow for multiple treatments and multiple running variables, some of which are randomly assigned. Lotteries generate assignment risk at screened as well as unscreened schools. Centralized assignment also identifies screened school effects away from screened school cutoffs. These features of centralized assignment are used to assess the predictive value of New York City's school report cards. Grade A schools improve SAT math scores and increase the likelihood of graduating, though by less than OLS estimates suggest. Selection bias in OLS estimates is egregious for Grade A screened schools.

Keywords: causal inference; natural experiment; local propensity score; instrumental variables; unified enrollment; school report card; school value added (search for similar items in EconPapers)
JEL-codes: C13 C18 C21 C26 C78 I21 (search for similar items in EconPapers)
Date: 2019-04
New Economics Papers: this item is included in nep-des and nep-ure
Note: MIP
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (15)

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http://humcap.uchicago.edu/RePEc/hka/wpaper/Abdulk ... ontinuity-design.pdf First version, March 6, 2019 (application/pdf)
http://humcap.uchicago.edu/RePEc/hka/wpaper/Abdulk ... inuity-design_v2.pdf Second version, December 31, 2020 (application/pdf)

Related works:
Journal Article: Breaking Ties: Regression Discontinuity Design Meets Market Design (2022)
Working Paper: Breaking Ties: Regression Discontinuity Design Meets Market Design (2020)
Working Paper: Breaking Ties: Regression Discontinuity Design Meets Market Design (2020)
Working Paper: Breaking Ties: Regression Discontinuity Design Meets Market Design (2019)
Working Paper: Breaking Ties: Regression Discontinuity Design Meets Market Design (2019)
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