In this paper we show that the formation of coalitions by subsets of countries might diminish the likelihood of a successful world-wide treaty on global pollution. Non-member countries may be less willing to sign a world-wide treaty than they would be in the absence of such coalitions. In fact,...

Relationships between prices of goods have held interest within economics in at least two areas - market integration and product aggregation. There is a close relationship between market integration and aggregation, although this has not received much attention in the more recent literature....