Suppliers who are better informed than purchasers, such as physicians treating insured patients, often have discretion over what to provide. This paper shows how, when the purchaser observes what is supplied but can observe neither recipient type nor the actual cost incurred, optimal provision...

Suppliers who are better informed than purchasers, such as physicians treating insured patients, often have discretion over what to provide. This paper shows how, when the purchaser observes what is supplied but can observe neither recipient type nor the actual cost incurred, optimal provision...

This chapter reviews the literature on payment schemes for government purchases of health services. It focuses on four themes: (1) the tension between obtaining appropriate quality of services and keeping the cost of those services at an acceptable level; (2) the role of cost sharing by the...