Free trade 68 Economic integration 29 Commercial policy 10 Free trade -- North America 10 Economic policy 9 Foreign economic relations 8 International economic integration 8 more ... Foreign trade and employment 7 Law and legislation 7 Commerce 6 Foreign trade regulation 6 National security 6 Canada. -- Treaties, etc. -- (1992 Oct. 7) 5 North America -- Economic integration 5 Tariff 5 Commercial treaties 4 Environmental policy 4 Libre-échange 4 Economic aspects 3 Economic conditions 3 International economic relations 3 Politics and government 3 Wirtschaftsintegration 3 Automobile industry and trade 2 Border patrols 2 Capital movements 2 Clothing trade 2 Emigration and immigration 2 Exports 2 Foreign trade promotion 2 less ...