Examines trade & investment trends in the Mercosur countries (Argentina, Brazil, Paraguay & Uruguay) in the context of both the Mercosur agreement & unilateral policy changes implemented by member nations to spur economic growth. Profiles of the 4 charter members provide a synopsis of their macroeconomic performance & of the government policies, reforms, & remaining barriers affecting trade & foreign investment. Profiles 5 U.S. export industries that account for 25% of exports to Mercosur countries: power generation equip., motor vehicles & parts, medical devices & equip., computer equip. & parts, & telecom. equip.