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We develop an open-economy model of intertemporal trade under asymmetric information. Capital market imperfections are endogenous and depend on a country's stage of economic development. Relative to the perfect-information benchmark, North-South capital flows are dampened (and possibly reversed) and world interest rates are lower. Whereas riskless rates are equalized across borders, the domestic loan rate is higher in poorer countries. The model can be applied to a number of policy issues including the debt-overhang problem, the indexation of foreign public debts, and the effect of income distribution on growth.
Gertler et al. (Mon,) studied this question.