The document summarizes various barriers to international business and efforts to reduce those barriers. It discusses socio-cultural, economic, and political barriers faced by companies operating abroad. It then outlines several trade agreements and unions that have sought to reduce barriers, such as NAFTA, GATT, and the European Union. However, it notes that some barriers still remain as countries aim to protect local industries or punish other nations. There is also sometimes disagreement over the appropriate level of government intervention in international trade.