This document discusses different levels and types of international business activity. It defines domestic business, international business, multinational business, and global business based on the extent to which a business operates across national borders. It also outlines various processes companies use to internationalize, such as exporting, importing, licensing, strategic alliances, joint ventures, and direct investment. Finally, it discusses some of the key environmental factors international businesses must consider, including market systems, economic conditions, infrastructure, politics, laws, culture, and organizational size.