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Matching with batches

Author

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  • Pablo Guillen
  • Rami Tabri
  • Edward Wang

Abstract

We propose a modification of the University Admissions Centre (UAC) mechanism to allow preference lists to be submitted in batches until the applicant is matched to a seat. Batching eliminates truncation and thus recovers strategy-proofness, allowing for the clearinghouse to provide simple advice. The current UAC mechanism uses a constrained list, giving incentives to students to strategize. We test the efficiency of our modification in an individual decision-making matching experiment in which we compare the batched mechanism with the current mechanism, with and without advice. Results show that while the batched mechanism exhibits greater efficiency for student welfare, better advice is required to improve truth-telling and thus avoid suboptimal matches.

Suggested Citation

  • Pablo Guillen & Rami Tabri & Edward Wang, 2024. "Matching with batches," Working Papers 2024-13, University of Sydney, School of Economics.
    • Handle: RePEc:syd:wpaper:2024-13
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    References listed on IDEAS

    as
    1. Pablo Guillen & Róbert F. Veszteg, 2021. "Strategy-proofness in experimental matching markets," Experimental Economics, Springer;Economic Science Association, vol. 24(2), pages 650-668, June.
    2. Guillen, Pablo & Hakimov, Rustamdjan, 2018. "The effectiveness of top-down advice in strategy-proof mechanisms: A field experiment," European Economic Review, Elsevier, vol. 101(C), pages 505-511.
    3. Guillen, Pablo & Hing, Alexander, 2014. "Lying through their teeth: Third party advice and truth telling in a strategy proof mechanism," European Economic Review, Elsevier, vol. 70(C), pages 178-185.
    4. Inácio Bó & Rustamdjan Hakimov, 2020. "Iterative Versus Standard Deferred Acceptance: Experimental Evidence," The Economic Journal, Royal Economic Society, vol. 130(626), pages 356-392.
    5. Caterina Calsamiglia & Guillaume Haeringer & Flip Klijn, 2010. "Constrained School Choice: An Experimental Study," American Economic Review, American Economic Association, vol. 100(4), pages 1860-1874, September.
    6. Julien Grenet & Yinghua He & Dorothea Kübler, 2022. "Preference Discovery in University Admissions: The Case for Dynamic Multioffer Mechanisms," Post-Print hal-04157650, HAL.
    7. Julien Grenet & YingHua He & Dorothea Kübler, 2022. "Preference Discovery in University Admissions: The Case for Dynamic Multioffer Mechanisms," Journal of Political Economy, University of Chicago Press, vol. 130(6), pages 1427-1476.
    8. Dur, Umut & Hammond, Robert G. & Kesten, Onur, 2021. "Sequential school choice: Theory and evidence from the field and lab," Journal of Economic Theory, Elsevier, vol. 198(C).
    9. Daniel L. Chen & Martin Schonger & Chris Wickens, 2016. "oTree - An open-source platform for laboratory, online, and field experiments," Post-Print hal-04315125, HAL.
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    12. Bnaya Dreyfuss & Ori Heffetz & Matthew Rabin, 2022. "Expectations-Based Loss Aversion May Help Explain Seemingly Dominated Choices in Strategy-Proof Mechanisms," American Economic Journal: Microeconomics, American Economic Association, vol. 14(4), pages 515-555, November.
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