The document discusses several theories of international investment:
1. The theory of capital movements explains international investment as the transfer of capital between countries to obtain profits through interest, dividends, or share of profits. It can involve physical or financial capital.
2. Market imperfections theory explains international investment flows that arise due to markets not meeting the standards of perfect competition.
3. Internalization theory explains why firms choose foreign direct investment over licensing to retain control of proprietary knowledge and avoid transaction costs of contracting.
4. Location-specific advantage theory considers location factors like resources, labor costs, or infrastructure that make one location more profitable for investment than others.
5. Dunning's eclectic theory