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Improving the Chilean College Admissions System

Author

Listed:
  • Ignacio Rios

    (Naveen Jindal School of Management, University of Texas at Dallas, Richardson, Texas 75080)

  • Tomás Larroucau

    (Department of Economics, University of Pennsylvania, Philadelphia, Pennsylvania 19104)

  • Giorgiogiulio Parra

    (Departamento de Evaluación, Medición y Registro Educacional (DEMRE), Universidad de Chile, 8320000 Santiago, Chile)

  • Roberto Cominetti

    (Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, 9250000 Santiago, Chile)

Abstract

In this paper we present the design and implementation of a new system to solve the Chilean college admissions problem. We develop an algorithm that obtains all applicant/program pairs that can be part of a stable allocation when preferences are not strict and when all students tied in the last seat of a program (if any) must be allocated. We use this algorithm to identify which mechanism was used in the past to perform the allocation, and we propose a new method to incorporate the affirmative action that is part of the system to correct the inefficiencies that arise from having double-assigned students. By unifying the regular admission with the affirmative action, we have improved the allocation of approximately 2.5% of students assigned every year since 2016. From a theoretical standpoint, we show that some desired properties, such as strategy-proofness and monotonicity, cannot be guaranteed under flexible quotas.

Suggested Citation

  • Ignacio Rios & Tomás Larroucau & Giorgiogiulio Parra & Roberto Cominetti, 2021. "Improving the Chilean College Admissions System," Operations Research, INFORMS, vol. 69(4), pages 1186-1205, July.
    • Handle: RePEc:inm:oropre:v:69:y:2021:i:4:p:1186-1205
    DOI: 10.1287/opre.2021.2116
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