Cost-sharing is regarded as an important tool to reduce moral hazard in health insurance. Contrary to standard prediction, however, such requirements are found to decrease utilization both of efficient and of inefficient care. I employ a simple model that incorporates two possible explanations -...

People exercising mental accounting have an additional motive for buying insurance. They perceive a risk of having insufficient funds available to self-insure. In this way insurance protects the consumption value of the insured asset beyond the expenditure to acquire/replace it. This complements...

I consider the popular argument of Medicaid crowding out demand for private long-term care insurance. I show that this argument rests on a wrong counterfactual comparison. Furthermore, I question the welfare-decreasing impact of Medicaid as it neglects a large value of the program in providing...