We study migration in the right tail of the talent distribution using a novel dataset of Indian high school students taking the Joint Entrance Exam (JEE), a college entrance exam used for admission to the prestigious Indian Institutes of Technology (IIT). We find a high incidence of migration...

Immigrants contribute disproportionately to entrepreneurship in many countries, accounting for a quarter of new employer businesses in the US. We review recent research on the measurement of immigrant entrepreneurship, the traits of immigrant founders, their economic impact, and policy levers....

We bring to bear a novel dataset covering the employment history of about 450 million individuals from 180 countries to study return migration and the impact of skilled international migration on human capital stocks across countries. Return migration is a common phenomenon, with 38% of skilled...

The effects of immigration are reasonably well understood in developed countries, but they are far more poorly understood in developing ones despite the importance of these countries as immigrant destinations. We address this shortcoming by studying the effects of immigration to Brazil during...

In this paper, we examine the role of coethnic advisor-student matching in U.S. Ph.D. programs in attracting, training and guiding immigrant talent into top jobs in Artificial Intelligence (AI). Using comprehensive administrative data on 1,769 AI Ph.D. graduates from top U.S. programs, combined...

We measure the impact of the initial Indian national COVID-19 lockdown on digital activity using browser histories of 1,094 individuals, spanning over 31.5 million website visits on computers and mobile devices. Reflecting the predicted increase in the value of online activity, both men and...

Early childhood in developing countries faces a greater prevalence of risk factors and limited resources, underscoring the need for effective, scalable support models. We develop and experimentally evaluate a multi-component approach to enhance family well-being over-the-phone. The program...

Public-sector organizations face a tradeoff: allowing workers discretion at the point of service to adapt to local needs, versus rigid harmonization to ensure uniform service delivery. We examine this tradeoff in the context of secondary schools in Odisha, India, where the centrally set...

More than a century has passed since the abrupt exodus of 1.2 million Greek Orthodox from Anatolia and their resettlement in Greece, a transformative event for the country's social and demographic landscape. Today, more than one in three Greeks reports a refugee background. While its historical...

We measure the level and growth of education segregation in American workplaces from 2000 to 2020. American workplaces show an educational segregation, measured by the degree to which the establishment has mostly workers of similar education levels, that is comparable to racial residential...