A basic estimation strategy in sample surveys is to weight units inversely proportional to the probability of selection and response. Response weights in this method are usually estimated by the inverse of the sample-weighted response rate in an adjustment cell, that is, the ratio of the sum of...

This dissertation applies the supergame approach to a Salop type product differentiation model with n firms in the market. The theory shows that product differentiation facilitates the formation of tacit collusion among the firms in an oligopolistic industry. The empirical analysis finds that...

Agri-environmental programs have become popular in many countries as a means of improving environmental quality. In the United States, recent Farm Bills have progressively expanded the number and range of these programs beyond soil conservation to water quality and other issues. Economists have...