We analyze the equity properties of insurance premium schemes where agents are partitioned into groups with different average accident probabilities and each individual has to pay a premium according to the average probability of the group to which it belongs. In particular, we examine the...

In pure population problems, a single resource is to be distributed equally among the agents in a society, and the social planner chooses population size(s) and per-capita consumption(s) for each resource constraint and set of feasible population sizes within the domain of the solution. This...

In a model where individual incomes depend on the agents' characteristics, we provide characterizations of several redistribution mechanisms. These mechanisms are designed to eliminate the effects of characteristics that are to be considered "irrelevant", while preserving the influence of...