The effects of international trade and foreign direct investment (FDI) on developing economies have always been controversial. From about the 1980s, however, the countries adopting open policies have tended to o- perform those adopting closed policies. The former, essentially the eco- mies of Asia and some countries of Latin America, have grown faster than the latter, the economies of sub-Saharan Africa. With the unstoppable spread of globalization and the supremacy of open policies over closed ones, the debate between participating and not participating in the world economy has been...