Import quotas Law and legislation 24 History 10 Tariff 9 Iron industry and trade 8 Wire 8 Commercial policy 6 Máis ... Foreign trade regulation 6 Woolen goods industry 6 Foreign trade regulations 4 Politics and government 3 Textile industry 3 Clothing trade 2 Dispute resolution (Law) 2 Dumping (International trade) 2 Mathematical models 2 Non-tariff trade barriers 2 Tin 2 Alum industry 1 Automobile industry workers 1 Brandy industry 1 Cattle 1 Clothing and dress 1 Commerce 1 Competition, International 1 Corn 1 Customs administration 1 Early works to 1800 1 Econometric models 1 Economic conditions 1 menos ...