COVID-19 vaccines are widely available in wealthy countries, yet many people remain unvaccinated. Understanding the effectiveness -- or lack thereof -- of popular vaccination campaign strategies is therefore critical. In this paper, we report results from two studies that tested strategies...

We present the first objective evidence on how COVID-19 lockdowns affected internet browser usage in Africa, using detailed digital trace data on PC-based and mobile-based browsing patterns of 316 Kenyans who had access to a PC, covering the period before and during Kenya's first national...

Many small businesses have closed, lost revenues, or downsized as a response to health and economic disruptions caused by COVID-19. But, were economic losses in the pandemic disproportionately felt by businesses owned by people of color? This paper provides the first study of the impacts of...

Previous estimates indicate that COVID-19 led to a large drop in the number of operating businesses operating early in the pandemic, but surprisingly little is known on whether these shutdowns turned into permanent closures and whether small businesses were disproportionately hit. This paper...

We characterize how firms structure supply chains under climate risk. Using new data on the universe of firm-to-firm transactions from an Indian state, we show that firms diversify sourcing locations, and suppliers exposed to climate risk charge lower prices. Our event-study analysis finds that...

Yes. We state closed-form expressions for steady state gains from trade that apply in a class of dynamic trade models that includes dynamic versions of the Krugman (1980), Melitz (2003), and customer capital (e.g., Arkolakis, 2010) models. The gains are a function of the domestic trade share and...

This paper is motivated by a set of cross-country observations on growth, structural transformation, and investment rates in a large sample of countries. We observe a hump-shaped relationship between a country's investment rate and its level of development, both within countries over time and...

The sharp, secular decline in the world real interest rate of the past thirty years suggests that the surge in global demand for financial assets outpaced the growth in their supply. We argue that this phenomenon was driven by: (i) faster growth in emerging markets, (ii) changes in the financial...

We study the roles of globalization and structural change in the evolution of international GDP comovement among industrialized countries over the period 1978-2007. In recent decades, trade integration between advanced economies increased rapidly while average GDP correlations remained stable....

We survey the recent literature studying the effects of globalization on inequality in Latin America. Our focus is on research emerging from the late 2000s onward, with an emphasis on empirical work considering new mechanisms, studying new dimensions of inequality, and developing new...