NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

NBER Working Papers by Francesc Ortega

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Working Papers

April 2009The Causes and Effects of International Migrations: Evidence from OECD Countries 1980-2005
with Giovanni Peri: w14833
This paper contains three important contributions to the literature on international migrations. First, it compiles a new dataset on migration flows (and stocks) and on immigration laws for 14 OECD destination countries and 74 sending countries for each year over the period 1980-2005. Second, it extends the empirical model of migration choice across multiple destinations, developed by Grogger and Hanson (2008), by allowing for unobserved individual heterogeneity between migrants and non-migrants. We use the model to derive a pseudo-gravity empirical specification of the economic and legal determinants of international migration. Our estimates clearly show that bilateral migration flows are increasing in the income per capita gap between origin and destination. We also find that bilateral f...

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