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Demographics in dynamic Heckscher-Ohlin models: overlapping generations versus infinitely lived consumers



This paper contrasts the properties of dynamic Heckscher-Ohlin models with overlapping generations with those of models with infinitely lived consumers. In both environments, if capital is mobile across countries, factor price equalization occurs after the initial period. In general, however, the properties of equilibria differ drastically across environments: With infinitely lived consumers, we find that factor prices equalize in any steady state or cycle and that, in general, there is positive trade in any steady state or cycle. With overlapping generations, in contrast, we construct examples with steady states and cycles in which factor prices are not equalized, and we find that any equilibrium that converges to a steady state or cycle with factor price equalization has no trade after a finite number of periods.

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