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Price Elasticities and Social Health Insurance Choice in Germany: A Dynamic Panel Data Approach

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Author Info

  • Marcus Tamm

    ()

  • Harald Tauchmann

    ()

  • Stefan Greß
  • Jürgen Wasem

Abstract

In 1996 free choice of health insurers has been introduced in the German social health insurance scheme. Competition between insurers was supposed to increase efficiency. A crucial precondition for effective competition among health insurers is that consumers search for lower-priced health insurers.We test this hypothesis by estimating the price elasticities of insurers’ market shares. We use unique panel data and specify a dynamic panel model to explain changes in market shares. Estimation results suggest that short-run price elasticities are smaller than previously found by other studies. In the long-run, however, estimation results suggest substantial price effects.

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File URL: http://repec.rwi-essen.de/files/DP_05_028.pdf
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Bibliographic Info

Paper provided by Rheinisch-Westfälisches Institut für Wirtschaftsforschung in its series RWI Discussion Papers with number 0028.

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Length: 26 pages
Date of creation: Jun 2005
Date of revision:
Handle: RePEc:rwi:dpaper:0028

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Related research

Keywords: Competition; generalized method of moments; health insurance;

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  1. M Arellano & O Bover, 1990. "Another Look at the Instrumental Variable Estimation of Error-Components Models," CEP Discussion Papers dp0007, Centre for Economic Performance, LSE.
  2. Arellano, Manuel & Bond, Stephen, 1991. "Some Tests of Specification for Panel Data: Monte Carlo Evidence and an Application to Employment Equations," Review of Economic Studies, Wiley Blackwell, vol. 58(2), pages 277-97, April.
  3. Steve Bond, 2002. "Dynamic panel data models: a guide to microdata methods and practice," CeMMAP working papers CWP09/02, Centre for Microdata Methods and Practice, Institute for Fiscal Studies.
  4. Hansen, Lars Peter, 1982. "Large Sample Properties of Generalized Method of Moments Estimators," Econometrica, Econometric Society, vol. 50(4), pages 1029-54, July.
  5. Blundell, Richard & Bond, Stephen, 1998. "Initial conditions and moment restrictions in dynamic panel data models," Journal of Econometrics, Elsevier, vol. 87(1), pages 115-143, August.
  6. Wansbeek, T.J. & Kapteyn, A.J., 1989. "Estimation of the error-components model with incomplete panels," Open Access publications from Tilburg University urn:nbn:nl:ui:12-364362, Tilburg University.
  7. Windmeijer, Frank, 2005. "A finite sample correction for the variance of linear efficient two-step GMM estimators," Journal of Econometrics, Elsevier, vol. 126(1), pages 25-51, May.
  8. Hausman, Jerry A, 1978. "Specification Tests in Econometrics," Econometrica, Econometric Society, vol. 46(6), pages 1251-71, November.
  9. Stephen Bond & Frank Windmeijer, 2002. "Finite Sample Inference for GMM Estimators in Linear Panel Data Models," 10th International Conference on Panel Data, Berlin, July 5-6, 2002 C6-3, International Conferences on Panel Data.
  10. Roger Feldman & Michael Finch & Bryan Dowd & Steven Cassou, 1989. "The Demand for Employment-Based Health Insurance Plans," Journal of Human Resources, University of Wisconsin Press, vol. 24(1), pages 115-142.
  11. Johannes Schwarze & Hanfried H. Andersen, 2001. "Kassenwechsel in der gesetzlichen Krankenversicherung: welche Rolle spielt der Beitragssatz?," Discussion Papers of DIW Berlin 267, DIW Berlin, German Institute for Economic Research.
  12. Anderson, T. W. & Hsiao, Cheng, 1982. "Formulation and estimation of dynamic models using panel data," Journal of Econometrics, Elsevier, vol. 18(1), pages 47-82, January.
  13. Gre[ss], Stefan & Groenewegen, Peter & Kerssens, Jan & Braun, Bernard & Wasem, Juergen, 2002. "Free choice of sickness funds in regulated competition: evidence from Germany and The Netherlands," Health Policy, Elsevier, vol. 60(3), pages 235-254, June.
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