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Elasticities of market shares and social health insurance choice in germany: a dynamic panel data approach

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Author Info
Marcus Tamm
Harald Tauchmann (RWI Essen, Essen, Germany)
Jürgen Wasem (Institute of Health Care Management, University of Duisburg|Essen, Essen, Germany)
Stefan Greß (Institute of Health Care Management, University of Duisburg|Essen, Essen, Germany)

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Abstract

In 1996, free choice of health insurers was introduced to the German social health insurance system. One objective was to increase efficiency through competition. 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. Copyright © 2006 John Wiley & Sons, Ltd.

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File URL: http://hdl.handle.net/10.1002/hec.1167
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Publisher Info
Article provided by John Wiley & Sons, Ltd. in its journal Health Economics.

Volume (Year): 16 (2007)
Issue (Month): 3 ()
Pages: 243-256
Download reference. The following formats are available: HTML (with abstract), plain text (with abstract), BibTeX, RIS (EndNote, RefMan, ProCite), ReDIF
Handle: RePEc:wly:hlthec:v:16:y:2007:i:3:p:243-256

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Web page: http://www3.interscience.wiley.com/cgi-bin/jhome/5749

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Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  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. Scanlon, Dennis P. & Chernew, Michael & McLaughlin, Catherine & Solon, Gary, 2002. "The impact of health plan report cards on managed care enrollment," Journal of Health Economics, Elsevier, vol. 21(1), pages 19-41, January. [Downloadable!] (restricted)
  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. Robert Nuscheler & Thomas Knaus, 2005. "Risk selection in the German public health insurance system," Health Economics, John Wiley & Sons, Ltd., vol. 14(12), pages 1253-1271. [Downloadable!]
  7. 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!]
  8. 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)
  9. Steven T. Berry, 1994. "Estimating Discrete-Choice Models of Product Differentiation," RAND Journal of Economics, The RAND Corporation, vol. 25(2), pages 242-262, Summer. [Downloadable!] (restricted)
  10. 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)
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  11. 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. [Downloadable!] (restricted)
  12. Schut, Frederik T. & Hassink, Wolter H. J., 2002. "Managed competition and consumer price sensitivity in social health insurance," Journal of Health Economics, Elsevier, vol. 21(6), pages 1009-1029, November. [Downloadable!] (restricted)
  13. 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!]
  14. Gre[ss], Stefan & Focke, Axel & Hessel, Franz & Wasem, Jurgen, 2006. "Financial incentives for disease management programmes and integrated care in German social health insurance," Health Policy, Elsevier, vol. 78(2-3), pages 295-305, October. [Downloadable!] (restricted)
  15. Berry, Steven & Levinsohn, James & Pakes, Ariel, 1995. "Automobile Prices in Market Equilibrium," Econometrica, Econometric Society, vol. 63(4), pages 841-90, July. [Downloadable!] (restricted)
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(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Rudy Douven & Harm Lieverdink & Marco Ligthart & Ivan Vermeulen, 2007. "Measuring annual price elasticities in Dutch health insurance: A new method," CPB Discussion Papers 90, CPB Netherlands Bureau for Economic Policy Analysis. [Downloadable!]
  2. Boris Augurzky & Harald Tauchmann, 2008. "Less Social Health Insurance – More Private Supplementary Insurance? – Empirical Evidence from Germany," Ruhr Economic Papers 0046, Rheinisch-Westfälisches Institut für Wirtschaftsforschung, Ruhr-Universität Bochum, Universität Dortmund, Universität Duisburg-Essen. [Downloadable!]
  3. Boris Augurzky & Thomas K. Bauer & Sandra Schaffner, 2006. "Copayments in the German Health System: Does It Work?," IZA Discussion Papers 2290, Institute for the Study of Labor (IZA). [Downloadable!]
  4. Brigitte Dormont & Pierre-Yves Geoffard & Karine Lamiraud, 2007. "The influence of supplementary health insurance on switching behaviour: evidence on Swiss data," PSE Working Papers 2007-34, PSE (Ecole normale supérieure). [Downloadable!]
  5. Boris Augurzky & Dirk Engel & Christoph M. Schmidt & Christoph Schwierz, 2009. "Ownership and Financial Performance in the German Hospital Sector," Ruhr Economic Papers 0123, Rheinisch-Westfälisches Institut für Wirtschaftsforschung, Ruhr-Universität Bochum, Universität Dortmund, Universität Duisburg-Essen. [Downloadable!]
  6. Boris Augurzky & Thomas Bauer & Sandra Schaffner, 2006. "Copayments in the German Health System – Do They Work?," RWI Discussion Papers 0043, Rheinisch-Westfälisches Institut für Wirtschaftsforschung. [Downloadable!]
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