4.5 Article

School Choice in Chile

Journal

OPERATIONS RESEARCH
Volume 70, Issue 2, Pages 1066-1087

Publisher

INFORMS
DOI: 10.1287/opre.2021.2184

Keywords

school choice; matching; two-sided market

Funding

  1. Chilean Ministry of Education (MINEDUC)
  2. Agencia Nacional de Investigacion y Desarrollo (ANID) [FONDEF ID15I10468, FONDEF ID15I20468]
  3. Millennium Institute for Market Imperfections and Public Policy [ICM IS130002]
  4. Institute of Complex Engineering Sys-tems [AFB 180003]
  5. Center for Mathematical Modeling [AFB 170001]
  6. Fondo Nacio-nal de Desarrollo Cientfico y Tecnologico [1190043]
  7. ANID graduate fellowships

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The centralized school admission mechanisms are an attractive way of improving social welfare and fairness in large educational systems. The newly established school choice system in Chile, is used for all school grade levels and faces unprecedented design challenges. The primary goal is to favor the assignment of siblings to the same school.
Centralized school admission mechanisms are an attractive way of improving social welfare and fairness in large educational systems. In this paper, we report the design and implementation of the newly established school choice system in Chile, where over 274,000 students applied to more than 6,400 schools. The Chilean system presents unprecedented design challenges that make it unique. First, it is a simultaneous nationwide system, making it one of the largest school choice problems worldwide. Second, the system is used for all school grade levels, from prekindergarten to 12th grade. One of our primary goals is to favor the assignment of siblings to the same school. By adapting the standard notions of stability, we show that a stable assignment may not exist. Hence, we propose a heuristic approach that elicits preferences and breaks ties between students in the same priority group at the family level. In terms of implementation, we adapt the deferred acceptance algorithm as in other systems around the world.

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