Martin Stuart ("Marty") Feldstein, currently George F. Baker Professor of Economics at Harvard University and President Emeritus of the National Bureau of Economic Research, Inc. (NBER), is a renowned American economist who has made important contributions to public finance, macroeconomics,...

Deductibles in health insurance generate nonlinear budget sets and dynamic incentives. This paper uses detailed individual claims data from a large Swiss insurance company to estimate the response in health care demand to the discrete price increase that is generated by resetting the deductible...

Intermediaries may bargain with several upstream providers on behalf of consumers who do not directly pay for consumption, such as an insurer bargaining with hospitals. We show that the common Nash- in-Nash solution, while useful for estimation, can predict Nash overpricing: prices that exceed...

Conventional theory holds that moral hazard - the additional health care purchased as a result of becoming insured - is an opportunistic price response and is welfare-decreasing because the value of the additional health care purchased is less than its costs. The theory of the demand for health...