This paper constructs a theoretical model of foreign direct investment
and examines the extent to which the model can explain the level of o
utward direct investment by U.S. companies over the last two decades.
We find that market size and factor costs, both labour and capital, ar
e important factors in the investment decision. Instrumental variable
estimation is used to demonstrate that the expectation of short-run fl
uctuations in the dollar also influences the timing of investment.