Foreign direct investment (FDI) is a major player in the global economy, with transnational corporations (TNCs) playing a key role in both developed and developing countries. The recent increase in FDI flows highlights the importance of market-friendly policies and competition in maintaining the benefits of FDI liberalization. The World Investment Report focuses on the interaction between FDI, market structure, and competition, emphasizing the need to ensure markets where TNCs invest function properly.