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...