In recent years numerous employers have reformed their health plan by changing the structure of employee contributions to premiums across different plans and across different rate classes (e.g., single versus family). This paper develops the notion of "premium cost sharing", in which the focus...

The Diagnostic Care Group (DCG) model is applied to data from the Massachusetts Group Insurance Commission from fiscal years 1994-1995 and used to assess the extent of biased selection between one fee-for-service (FFS) plan, one preferred provider organization, and several health maintenance...

We consider a model in which customers sequentially negotiate nonexclusive credit or insurance contracts from multiple risk-neutral firms in a market with free entry. Each contract is subject to moral hazard arising from a common noncontractible effort decision.