This document provides an overview of foreign direct investment (FDI), including definitions, types, methods, incentives, importance, and barriers. It also discusses FDI trends in major economies like China, India, the US, and Canada. The key types of FDI are horizontal (duplicating home activities abroad), vertical (moving across value chains), and platform (exporting to a third country from the destination). Countries use various incentives to attract FDI and its inflow is associated with economic growth. India has been ranked among the top destinations for FDI and allows 51% FDI in multi-brand retail and 100% in single-brand retail, subject to certain conditions.