In the absence of a perfect risk adjustment scheme, reimbursing health insurers' costs can reduce risk selection in community-rated health insurance markets. In this paper, we develop a model in which insurers determine the cost efficiency of health care and have incentives for risk selection....

This paper examines the trade-off between risk allocation and quality supply for an insurance monopolist when individuals face two kinds of risk related to health. First, they may suffer an ordinary monetary loss. Second, they are subject to uncertain premiums because their type may change. We...

We analyze the effects of a permanent increase in life expectancy and of a permanent decline in the rate of population growth on intergenerational redistribution in a pay-as-you-go pension system with a constant contribution or constant replacement rate. We show that under these policies both...

A common approach to avoid risk selection in health insurance markets is to define and enforce a community-rated basic benefit package. The market for complementary insurance is usually completely separate from the market for basic health insurance. In Switzerland, however, the basic benefit...

Seit 1981 besteht in Chile ein privates Krankenversicherungssystem, dem 1995 über ein Viertel der Bevölkerung angehörte. Diese Arbeit untersucht dieses System aus ökonomischer Sicht. Im Mittelpunkt der Analyse stehen die Anreizwirkungen staatlicher Vorschriften für die Gestaltung privater...

Diese Arbeit untersucht die Auswirkungen einer Erhöhung der Lebensarbeitszeit für den Beitragssatz einer umlagefinanzierten Rentenversicherung. Dabei werden die von der längeren Lebensarbeitszeit betroffenen Personen durch versicherungsmathematische Zuschläge entschädigt. Es wird gezeigt,...

We examine the impact of tuition fees for long term students at the University of Konstanz. Applying duration analysis to examine how tuition fees influence when and how students finish their studies in six different majors, we find significant effects with respect to the hazard rates of the...

This paper presents a comprehensive view of life-time taxation including both explicit taxation through the general tax system and implicit taxation via the retirement benefit formula. Individuals are heterogeneous with respect to productivity. It is shown that the optimal structure of...