Lack of national saving is one of the main problems of developing countries for investment. Loans from international commercial banks was one of the ways for these countries to provide the capital. After the economic crisis in 80s, countries shifted their investment policies to FDI, as an attractive alternative, which entailed no risk in terms of debt. The United Nations World Investment Report (UNCTAD, 1999) defines FDI as, “an investment involving a long-term relationship and reflecting a lasting interest and control of a resident entity in one economy (foreign direct investor or parent enterprise) in an enterprise resident in an economy other than that of the foreign direct investor (FDI enterprise, affiliate enterprise or foreign affiliate)”.