The authors examine international trade in a commodity whose production creates a negative externality for the importing country and they consider the nations' strategic policy choices when they can restrict trade and when they are bound by a free-trade agreement. When pollution-abatement...

This paper examines the effect of a tariff on the decision of a foreign monopolist to adopt `clean' technology, which reduces the flow of a negative cross-border externality. The clean technology increases the marginal cost of production relative to the dirty technology, but only the firm knows...

South-South trade agreements are proliferating. Yet the impact of these agreements is largely unknown, as existing North-North and North-South micro-level studies are likely to yield misleading predictions for South-South trade agreements. This paper estimates the impact of COMESA on Uganda's...