We provide a nonparametric revealed preference approach to demand analysis based on homothetic efficiency … homothetic efficiency of consumption choices. It generalises Heufer's (2013) two-dimensional concept to arbitrary dimensions and …

This paper empirically analyzes moral hazard in car insurance using a dynamic theory of an insuree's dynamic risk (ex …

We study risk-based selection into a voluntary unemployment insurance (UI) scheme. To disentangle behavioral effects … from selection, we exploit variation in the sign-up induced by an early retirement scheme embedded into the UI system. We … combine an event study with a differencein-difference approach applied to Danish register data to quantify the selection. We …

markets with small initial loss sizes, insurers may try to raise these in order to create demand for insurance. After having … defined insurance and non-insurance markets based on the initial loss size, we develop theory to show that insurers with buyer … power have incentives to create insurance markets. Insurer competition will push their profits to zero but markets do not …

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 …