Final answer:
The term for the exchange of goods on a large scale between countries is 'trade,' which is a major part of international trade and contributes to GDP. Intra-industry trade, where countries both import and export goods within the same industry, is a common aspect of modern trade, as seen with U.S. auto trading.
Step-by-step explanation:
The term used for an interchange of goods or commodities, especially on a larger scale between countries, is trade. International trade encompasses the exchange of goods and services across national borders and is a significant contributor to a country's Gross Domestic Product (GDP). Historically, international trade was much less significant, but with advancements such as industrialization, improved transportation, globalization, the rise of multinational corporations, and outsourcing, its importance has grown exponentially.
According to the theory of comparative advantage, economies should specialize in the production of certain goods, which promotes efficiency and exchange. A substantial portion of global trade today is intra-industry trade, indicating that countries both import and export goods within the same industry. This is exemplified by the United States, which is both a major importer and exporter of automobiles, suggesting the complexity and interconnectedness of modern international markets.