"This paper examines the degree to which the learning by doing externality [LBD] calls for an undervalued exchange rate, a policy suggested by recent empirical studies which concluded that mildly undervalued real exchange rate may enhance growth. We obtain mixed results. For an economy where LBD...

In an economy with imperfect labor contracts, differences in the distribution of talent can be an independent source of comparative advantage. I study a world economy with two activities, one in which an individual's contribution to production can be measured accurately and another in which...