Why don't poor countries adopt more productive technologies? Is there a role for policies that coordinate technology adoption? To answer these questions, we develop a quantitative model that features complementarity in firms' technology adoption decisions: The gains from adoption are larger when...

What are the effects of a temporary lockdown of the economy? Do firms' deteriorating balance sheets and labor market frictions propagate and prolong the effects? We answer these questions in a model with financial and labor market frictions. The model makes quantitative predictions about the...

This paper examines the role of the market for high-skilled labor in explaining variation in the levels and dynamics of the service share, home production time, and market labor across countries. We establish and extend key facts for a cross-section of countries. First, growth in the total share...

We provide a tractable theory of innovation and diffusion of technologies to explore the role of international trade and foreign direct investment (FDI). We model innovation and diffusion as a process involving the combination of new ideas with insights from other industries or countries. We...

market frictions over time with self-financing. With intermediate levels of frictions in the capital market, welfare costs of market incompleteness have a U shape against the persistence of idiosyncratic shocks. The right arm of the U reflects the difficulty of self-insurance against very...

We study the evolution of trade policies over time and across countries. We consider a model in which own and neighbors' past experiences influence policy choices, through their effect on policymakers' beliefs. We estimate the model using a large panel of countries. We find that there is a...

2. Allowing entrepreneurs to move across borders. We find that entrepreneurs who are highly-talented but financially constrained in the financially less developed country migrate to the more developed country to take advantage of better financial markets. We interpret this outcome as brain...