Startseite Does Abolishing a Copayment Increase Doctor Visits? A Comparative Case Study
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Does Abolishing a Copayment Increase Doctor Visits? A Comparative Case Study

  • Tapio Haaga ORCID logo EMAIL logo , Petri Böckerman ORCID logo , Mika Kortelainen ORCID logo und Janne Tukiainen ORCID logo
Veröffentlicht/Copyright: 11. Dezember 2023

Abstract

Insurance coverage increases health care consumption, but less is known whether moderate copayments affect adults’ primary care utilization in a system characterized by gatekeeping. We analyze whether abolishing a 14-euro copayment for visits to general practitioners (GP) in Helsinki, the capital of Finland, increased the number of GP visits among adults and especially among low-income individuals. Using a difference-in-differences (DD) design and combining several administrative registers from 2011 to 2014, we find that the abolition is associated with only a small increase in GP visits (+0.04 visits annually, or +4.4 %, for all adults). The increase is driven by low-income adults (+0.06 visits, or +4.5 %, at the bottom 40 %). Although the point estimates are rather robustly positive, the conclusions regarding the statistical significance are sensitive to how we account for clustering in a setting characterized by only one treated cluster and a finite number of comparison clusters.

JEL Classification: I18; I14; I13; H42; I11

Corresponding author: Tapio Haaga, Finnish Institute for Health and Welfare (THL), Helsinki, Finland; and University of Turku, Turku, Finland, E-mail:

Award Identifier / Grant number: 20197209

Acknowledgment

We thank Mikko Peltola, Heikki Kauppi, and THL for support and Liisa T. Laine, Tuomas Markkula, Mikko Nurminen, Jukka Pirttilä, Lauri Sääksvuori, Jussi Tervola, and Maria Vaalavuo for comments and suggestions. We also thank all seminar participants who have provided comments to this study and our other related projects. This work is supported by Yrjö Jahnsson Foundation (research grant No. 20197209) and by the Finnish Ministry of Social Affairs and Health. Replication codes: https://github.com/tapiohaa/ASMA2. Working paper versions: https://osf.io/8q5b2/.

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Supplementary Material

This article contains supplementary material (https://doi.org/10.1515/bejeap-2023-0056).


Received: 2023-02-28
Accepted: 2023-11-21
Published Online: 2023-12-11

© 2023 Walter de Gruyter GmbH, Berlin/Boston

Heruntergeladen am 25.9.2025 von https://www.degruyterbrill.com/document/doi/10.1515/bejeap-2023-0056/html
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