ocr: Strengths Arelatively broad base compared with other Caribbean states. Sugar is the main product, followed by nickel, citrus fruits, tobacco and,increasingly, tourism. Wealnesses US trade embargo robs Cuba of a major market and investment capital; Cuba was once second only to Venezuela in US overseas investment in Latin America. Non-convertible currency is an increasing liability as Russia demands payment for oil in dollars. Loss of ex- communist states as trading partners. Profile Since 1959, the nationalized economy has oscillated between concentration on sugar and attempts at industrializat ...