This paper investigates competition between health insurance companies under different financing regulations. We … consider two alternatives advanced in recent German health care reform discussions: competition by contribution rates (health … contributions) and by fees (health premia). We find that contribution rate competition yields lower company profits and higher …

. Softer budgets reduce cost efficiency, while the effect on quality is ambiguous. For given cost efficiency, softer budgets …

This paper studies the design of health insurance with ex post moral hazard, when there is imperfect competition in the … are considered. The insurance contract specifies two types of copayments: an ad valorem coinsurance rate and a specific …

on health care quality, health care financing and welfare. We show that without patient mobility quality is too low (high …

distorts drug choices most, exposing patients to higher health risks …