Considerable evidence suggests that many people for whom insurance is worth purchasing do not have coverage and others who appear not to need financial protection against certain events actually have purchased coverage. There are certain types of events for which one might expect to see...

The conventional model for the use of cost effectiveness analysis for health programs involves determining whether the cost per unit of effectiveness of the program is better than some socially determined maximum acceptable cost per unit of effectiveness. If a program is better, the policy...

This note considers a relatively new form of financing for social services, the "Social Impact Bond." Proponents of Social Impact Bonds argue that they present a solution to several problems in funding social services, including performance measurement and the distribution of risk. Using a...

The analysis of a world of equals model, while admittedly unrealistic, did yield several new and interesting theorems, especially theorems 4, 5, and 6. The tendencies described by these models continue to hold in some cases in which populations are not perfectly homogeneous. One may conjecture...