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Working Paper
Knowledge Diffusion, Trade and Innovation across Countries and Sectors
We provide a unified framework for quantifying the cross country and cross-sector interactions among trade, innovation, and knowledge diffusion. We study the effect of trade liberalization in a multi-country, multi-sector endogenous growth model in which comparative advantage and the stock of knowledge are determined by innovation and diffusion. A reduction in trade costs induces a re-allocation of comparative advantage in production and innovation across sectors, which translates into higher growth along the counterfactual balanced growth path (BGP). Heterogeneous knowledge diffusion across ...
Working Paper
Aggregate Implications of Changing Sectoral Trends
We find disparate trend variations in TFP and labor growth across major U.S. production sectors and study their implications for the post-war secular decline in GDP growth. We describe how capital accumulation and the network structure of U.S. production interact to amplify the effects of sectoral trend growth rates in TFP and labor on trend GDP growth. We derive expressions that conveniently summarize this long-run amplification effect by way of sectoral multipliers. These multipliers are quantitatively large and for some sectors exceed three times their value added shares. We estimate that ...
Working Paper
Knowledge Diffusion, Trade and Innovation across Countries and Sectors
We provide a unified framework for quantifying the cross country and cross-sector interactions among trade, innovation, and knowledge diffusion. We study the effect of trade liberalization in a multi-country, multi-sector endogenous growth model in which comparative advantage and the stock of knowledge are determined by innovation and diffusion. A reduction in trade costs induces a re-allocation of comparative advantage in production and innovation across sectors, which translates into higher growth along the counterfactual balanced growth path (BGP). Heterogeneous knowledge diffusion across ...
Working Paper
Knowledge Diffusion, Trade and Innovation across Countries and Sectors
We provide a unified framework for quantifying the cross-country and cross-sector interactions among trade, innovation, and knowledge diffusion. We study the effect of trade liberalization in an endogenous growth model in which comparative advantage and the stock of knowledge are determined by innovation and diffusion. We calibrate the model to match observed cross-country and cross-sector heterogeneity in production, innovation efficiency and knowledge spillovers. Our counterfactual analysis shows that a reduction in trade costs induces a re-allocation of R&D and comparative advantage across ...