Final answer:
The theories of FDI try to show the motivations behind FDI, the impact of FDI on host and home countries, and the role of government policies in influencing FDI.
Step-by-step explanation:
The theories of foreign direct investment (FDI) try to show the motivations behind FDI, the impact of FDI on host and home countries, and the role of government policies in influencing FDI. They do not necessarily focus on the history of FDI in various industries.