Cost-sharing is regarded as an important tool to combat moral hazard in health insurance. Contrary to standard … implications of different insurance designs. I find cost-sharing never to be an optimal solution as it produces two novel …

Health insurance plans increasingly pay for expenses only beyond a large annual deductible. This paper explores the … implications of deductibles that reset over shorter timespans. We develop a model of insurance demand between two actuarially … equivalent deductible policies, in which one deductible is larger and resets annually and the other deductible is smaller and …

We develop a new approach to quantify how patients respond to dynamic incentives in health insurance contracts with a … deductible. Our approach exploits two sources of variation in a differences-in-regression-discontinuities design: deductible … deductible by €100 leads to a reduction in healthcare spending of around 3% on the first days of the year and 6% at the annual …