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An Empirical Model of Health Care Demand under Non-linear Pricing

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  • Rainer Winkelmann

Abstract

In 2004, the German Social Health Insurance introduced a co-payment for the first doctor visit in a calendar quarter. I combine a structural model of health care demand and a difference-in-differences strategy to estimate the effect of that reform on the number of visits. In the model, the implied incentive to delay a first visit also affects subsequent visits, as the expected remaining time to the end of quarter is reduced. This effect has been ignored by the prior literature using standard hurdle count models. Data are from the German Socio-Economic Panel. Results show no statistically significant reduction in visits due to the reform.

Suggested Citation

  • Rainer Winkelmann, 2014. "An Empirical Model of Health Care Demand under Non-linear Pricing," SOEPpapers on Multidisciplinary Panel Data Research 688, DIW Berlin, The German Socio-Economic Panel (SOEP).
    • Handle: RePEc:diw:diwsop:diw_sp688
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    References listed on IDEAS

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    1. Helmut Farbmacher & Peter Ihle & Ingrid Schubert & Joachim Winter & Amelie Wuppermann, 2017. "Heterogeneous Effects of a Nonlinear Price Schedule for Outpatient Care," Health Economics, John Wiley & Sons, Ltd., vol. 26(10), pages 1234-1248, October.
    2. Schreyögg, Jonas & Grabka, Markus M., 2010. "Copayments for Ambulatory Care in Germany: A Natural Experiment Using a Difference-in-Difference Approach," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 11(3), pages 331-341.
    3. Augurzky, Boris & Bauer, Thomas K. & Schaffner, Sandra, 2006. "Copayments in the German Health System: Does It Work?," IZA Discussion Papers 2290, Institute of Labor Economics (IZA).
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    7. Augurzky, Boris & Bauer, Thomas K. & Schaffner, Sandra, 2006. "Copayments in the German Health System - Do They Work?," RWI Discussion Papers 43, RWI - Leibniz-Institut für Wirtschaftsforschung.
    8. Helmut Farbmacher & Joachim Winter, 2013. "Per‐Period Co‐Payments And The Demand For Health Care: Evidence From Survey And Claims Data," Health Economics, John Wiley & Sons, Ltd., vol. 22(9), pages 1111-1123, September.
    9. Mullahy, John, 1986. "Specification and testing of some modified count data models," Journal of Econometrics, Elsevier, vol. 33(3), pages 341-365, December.
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    Cited by:

    1. Helmut Farbmacher & Peter Ihle & Ingrid Schubert & Joachim Winter & Amelie Wuppermann, 2017. "Heterogeneous Effects of a Nonlinear Price Schedule for Outpatient Care," Health Economics, John Wiley & Sons, Ltd., vol. 26(10), pages 1234-1248, October.

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    More about this item

    Keywords

    Count data; Poisson process; co-payment; hurdle model;
    All these keywords.

    JEL classification:

    • C25 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Discrete Regression and Qualitative Choice Models; Discrete Regressors; Proportions; Probabilities
    • I10 - Health, Education, and Welfare - - Health - - - General

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