Income Differences, Productivity, and Input-Output Networks
研究了投入产出关联和部门生产率如何影响跨国收入差异，发现穷国中高关联部门生产率更高，而富国相反，且投入产出关联放大了部门生产率差异，但放大效应弱于简单模型。
We study the importance of input-output (IO) linkages and sectoral productivity (TFP) in determining cross-country income differences. We find that while highly connected sectors are more productive than the typical sector in poor countries, the opposite is true in rich ones. To assess the quantitative role of linkages and sectoral TFP differences in cross-country income differences, we decompose cross-country income variation using a multisector general equilibrium model. We find that IO linkages substantially amplify fundamental sectoral TFP variation, but this amplification is significantly weaker than the one suggested by a simple IO model with an aggregate intermediate good.