Equilibrium Technology Diffusion, Trade, and Growth
研究开放贸易如何通过影响企业技术采用决策来促进经济增长，发现贸易扩大利润差距、加速技术扩散，从而带来显著的福利收益。
We study how opening to trade affects economic growth in a model where heterogeneous firms can adopt new technologies already in use by other firms in their home country. We characterize the growth rate using a summary statistic of the profit distribution: the mean-min ratio. Opening to trade increases the profit spread through increased export opportunities and foreign competition, induces more rapid technology adoption, and generates faster growth. Quantitatively, these forces produce large welfare gains from trade by increasing an inefficiently low rate of technology adoption and economic growth.