Trade disruption and industrial organization are the subject of this penetrating look at the effects of the new protectionism in international trade. This volume provides five case studies of threats and protection in particular industries as a basis for discussion of the political economy of quota threats. Stockhausen analyzes the effects of quota threats on countries with competition in the export industry, on countries with monopoly in the export industry, and on those with duopoly or oligopoly in the export industry. Consideration is given both to large--and small--country cases under varying cost structures. The effects of relaxing some of the assumptions in the model, especially allowing for consumers and suppliers from third world countries, are also discussed.