Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
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 after students complete college: among the top 1000 scorers on the exam, 36% have migrated abroad, rising to 62% for the top 100 scorers. We next document that students who attended the original “Top 5” IIT were 5 percentage points more likely to migrate for graduate school compared to equally talented students who studied in other institutions. We explore two mechanisms for these patterns: signaling, for which we study migration after one university suddenly gained the IIT designation; and alumni networks, using information on the location of IIT alumni in U.S. computer science departments.