The definitive version of the text was subsequently published in World Development, 65, 2015-01 Published by Elsevier and found at http://dx. Abstract Discussions of high-skilled mobility typically evoke migration patterns from poorer to wealthier countries, which ignore movements to and between developing countries. This paper presents, for the first time, a global overview of human capital mobility through bilateral migration stocks by gender and education in 1990 and 2000, and calculation of

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... nuanced brain drain indicators. Building on newly collated data, the paper uses a novel estimation procedure based on a pseudo-gravity model, then identifies key determinants of international migration, and subsequently uses estimated parameters to impute missing data. Non-OECD destinations account for one-third of skilled-migration, while OECD destinations are declining in relative importance. JEL codes: F22, J61, O15.