6Bhagwati, Jagdish N., Richard A. Brecher, Elias Dinopoulos and T.N. Srinivasan,(1987)“Quid Pro Quo Foreign Investment and Welfare: A political Economy Theoretical Model” Journal of Development Economics 10.
7lucas, R, (1993), "On the Determinants of Direct Foreign Investment Evidence from East and Southeast Asia,"World Development 21(3).
8Mundell,R.A , (1957) "International Trade and Factor Mobility," American Economic Review6.
