Foreign Investment as Main Factor for Successful Funds and Its Effect on Trade Balance Strategic Technology Adoption under Technological Uncertainty

National wealth funds have initiated their activities comprehensively over last two decades. National wealth fund is a governmental investment fund financed by surpluses of payments’ balance, official foreign currency operations, revenues of privatization, payments for governmental transfers, fiscal surpluses and export revenues. However, the financing for this investment requires foreign currency reserve where management of current account’s balance plays important role. First of all, some explanations are presented in this paper about national development fund and then in regard to the study made about successful funds which used foreign investment (direct or indirect) as investment strategy, we will consider the foreign investment. Next, regarding the role of the fund in trade balance and its effect on foreign investment, we will consider the relationship between fund and trade balance in short-term and long-term. Results shown that many successful funds prevented formation of possible corruption following the weakness of institutions to designate fund for inner sectors. Therefore, increase in foreign investment cause positive condition of trade balance in Iran. Whereas China is a new emerged economy with positive trade balance, investment in this country and formation of better relationship and cooperation provide privileges for this country.