Assurance maladie en Suisse : l'assurance supplémentaire nuit-elle à la concurrence sur l'assurance de base ?

Abstract : Many countries have introduced competition in health insurance markets. Managed competition settings have been implemented in order to avoid risk selection problems. In Germany, the Netherlands, Switzerland and Israel citizens can choose between different providers for basic coverage. In this article, we focus on the specific case of Switzerland which implemented managed competition in basic health insurance markets in 1996. We study to what extent consumer choice for one's basic health plan may interact with the decision to subscribe to supplementary insurance. The organization of social health insurance in France is currently very different from the Swiss system. However the question of regulating complementary health care insurance markets in France may be discussed in the middle/long run using the Swiss model. In Switzerland, competition in basic health insurance markets has not been effective so far. There is no evidence of premium convergence within cantons. Consumers have been reluctant to switch to less expensive funds. We investigate one possible barrier to switching behavior, namely the influence of supplementary insurance. We show that low switching rates are the result of the existence of two health insurance markets which are regulated differently: the basic health insurance market where risk selection is prohibited and the supplementary health insurance market where risk selection practices are allowed. We show that holding a supplementary contract reduces the probability of switching basic insurance provider for those with poor self-assessed health but has no effect on the switching behavior of enrollees in good/very good health. The efficient management of competition in the basic insurance market may suffer from a lack of adequate regulation in the supplementary market.
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Submitted on : Thursday, February 28, 2013 - 1:34:13 PM
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Brigitte Dormont, Pierre-Yves Geoffard, Karine Lamiraud. Assurance maladie en Suisse : l'assurance supplémentaire nuit-elle à la concurrence sur l'assurance de base ?. 2012. ⟨hal-00795544⟩

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