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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

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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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Publisher 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
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Handle: RePEc:rwi:dpaper:0028

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Related research
Keywords: Competition generalized method of moments health insurance

Find related papers by JEL classification:
I18 - Health, Education, and Welfare - - Health - - - Government Policy; Regulation; Public Health
C33 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Models with Panel Data

References listed on IDEAS
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  1. 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, Blackwell Publishing, vol. 58(2), pages 277-97, April. [Downloadable!] (restricted)
  2. 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. [Downloadable!]
    Other versions:
  3. Hansen, Lars Peter, 1982. "Large Sample Properties of Generalized Method of Moments Estimators," Econometrica, Econometric Society, vol. 50(4), pages 1029-54, July. [Downloadable!] (restricted)
  4. 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. [Downloadable!] (restricted)
  5. Breitung, Jorg & Meyer, Wolfgang, 1994. "Testing for Unit Roots in Panel Data: Are Wages on Different Bargaining Levels Cointegrated?," Applied Economics, Taylor and Francis Journals, vol. 26(4), pages 353-61, April.
  6. 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. [Downloadable!]
  7. Arellano, Manuel & Bover, Olympia, 1995. "Another look at the instrumental variable estimation of error-components models," Journal of Econometrics, Elsevier, vol. 68(1), pages 29-51, July. [Downloadable!] (restricted)
    Other versions:
  8. 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. [Downloadable!] (restricted)
    Other versions:
  9. Wansbeek, Tom & Kapteyn, Arie, 1989. "Estimation of the error-components model with incomplete panels," Journal of Econometrics, Elsevier, vol. 41(3), pages 341-361, July. [Downloadable!] (restricted)
  10. Hausman, Jerry A, 1978. "Specification Tests in Econometrics," Econometrica, Econometric Society, vol. 46(6), pages 1251-71, November. [Downloadable!] (restricted)
  11. 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. [Downloadable!]
  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. [Downloadable!] (restricted)
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