Many forms of insurance are produced by groups themselves rather than purchased in the market. For example, coverage for workers compensation provided by employers is often produced by the employer, in the sense that the employer bears some or all of the financial risk associated with the...

The future course of old-age mortality is of great importance to public sector expenditures in countries where old-age programs, such as Social Security and Medicare in the US, account for large fractions of the public budget. This paper argues that the competitive market prices of mortality...

This paper develops a dynamic continuous-time model in which international risk sharing can yield substantial welfare gains through its positive effect on expected consumption growth. The mechanism linking global diversification to growth is an attendant world portfolio shift from safe, but...

The nation's spending for prescription drugs has grown dramatically in recent years. Previous studies have shown that the replacement of older drugs by newer, more expensive, drugs is the single most important reason for this increase, but they did not measure how much of the difference between...

A patent only protects an innovator from others producing the same product, but it does not protect him from others producing better products under new patents. Therefore, one may divide up the source of competition facing an innovator into within-patent competition, which results from...

A patent protects an innovator only from others who produce the same product, but it does not protect him from others who produce better products under new patents. Previous work has emphasized that intellectual property regulations stimulate research and development by protecting innovative...

The Dual Effects of Intellectual Property Regulations: Within- and Between-Patent Competition in the US Pharmaceuticals Industry