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CGD Policy Blogs


A Global Map of Subnational GDP

Nicola Gennaioli, Rafael La Porta, Florencio Lopez-de-Silanes and Andrei Shleifer have just published a fascinating paper in the QJE: “Human Capital and Regional Development”.  They constructed a database of 1,569 subnational regions across 110 countries covering GDP, population, education levels, geographic and institutional factors, and looked at correlates with higher per capita income.  They suggest that geography and education are significant correlates of regional GDP, while their measures of institutions and culture are less well correlated.  They have followed up with a working paper using an expanded dataset, “Growth in Regions” that reports regional convergence of 2.5% a year and note that a rate so slow suggests “significant barriers to factor mobility within countries.”

Borders and the Beltway: W-Visas a Win for the United States and Developing Countries

If you thought the immigration debates of the last few months were rough, hold on to your visas, because it’s about to get ugly. The Senate Gang of 8’s comprehensive immigration reform bill, the Border Security, Economic Opportunity, and Immigration Modernization Act, has been released. And at the epicenter of these debates is the provision creating visas for what are often called “guest workers”—an issue close to CGD’s heart.