ABSTRACT
As economies grow over time, their patterns of trade are unlikely to remain the same. For example, while the United States primarily exported tobacco, cotton, and foodstuffs in the eighteenth and nineteenth centuries, by the twentieth century it had become a major exporter of manufactured goods. At the start of the twenty-first century it had further shifted toward the exportation of services. In the post-war period alone, Korea has shifted from being an exporter of primary materials to a dominant provider of apparel and footwear, and most recently to goods such as steel, electronics, and semiconductors.
