
Lenny D. answered 04/10/19
Global Macroeconomic Expert
Quite simply, Trade is the engine of growth. Developing countries are typically "labor rich" and "capital poor." If labor could freely migrate to "capital rich" countries they would see their wages increase. If the developing countries can export labor intensive goods their wages and standards of living will also increase. The trade in goods is a substitute for the free migration of factors of production.