Today, thanks to the ease of technology and travel, we enjoy unprecendented levels of interconnectedness. Societies are increasingly mobile, and immigrant populations maintain strong ties with their native countries, allowing for an unbroken chain of innovation and knowledge that stretches all...

We document the transmission of social distancing practices from the United States to Mexico along migrant networks during the early 2020 Covid-19 pandemic. Using data on pre-existing migrant connections between Mexican and U.S. locations and mobile-phone tracking data revealing social...

The Reagan and Bush years left us with a troublesome dilemma: how to balance our budget deficit against our social deficit. This book takes up the urgent question of how, in a time of budgetary stringency, we can meet the pent-up demand for spending on our nation's neglected poor, ill, and...