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Brain drain has long been seen in developing countries as an undesirable consequence of migration. This concern is amplified by the recent increase in skilled emigration as some developed countries orient their immigration policies to embrace higher-skilled workers. Economic theory suggests a range of possible benefits and costs to sending countries from skilled emigration, but the evidence base is very limited. David McKenzie presents unique survey work conducted with John Gibson tracking worldwide the best and brightest academic performers from three Pacific countries. McKenzie's presentation draws on the Tonga experience, describing the impact of skilled migration on the country, including fiscal and demographic implications.