15,087 research outputs found
Eight Questions about Brain Drain
No full textHigh-skilled emigration is an emotive issue that in popular discourse is often referred to as brain drain, conjuring images of extremely negative impacts on developing countries. Recent discussions of brain gain, diaspora effects, and other advantages of migration have been used to argue against this, but much of the discussion has been absent of evidence. This paper builds upon a new wave of empirical research to answer eight key questions underlying much of the brain drain debate: 1) What is brain drain? 2) Why should economists care about it? 3) Is brain drain increasing? 4) Is there a positive relationship between skilled and unskilled migration? 5) What makes brain drain more likely? 6) Does brain gain exist? 7) Do high-skilled workers remit, invest, and share knowledge back home? and 8) What do we know about the fiscal and production externalities of brain drain?Brain drain, Brain gain, High-skilled Emigration, Development
Brain drain in developing countries
No full textRelying on an original data set on international migration by educational attainment for 1990 and 2000, we analyze the determinants of the brain drain from developing countries. We start from a simple decomposition of the brain drain in two multiplicative components, the degree of openess of sending countries (as measured by their average emigration rate) and the schooling gap (as measured by the relative education level of emigrants compared to natives). Using various regression models, we put forward the determinants of the components and explain cross-country differences in skilled migration. unsurprisingly, the brain drain is strong in small countries which are not too distant from the major OECD regions, which share colonial links with OECD countries and which send most of their migrants to host countries where quality-selective immigration programs exist. More interestingly, the brain drain increases with political instability and the degree of fractionalization at origin; it globally decreases with natives’human capital.International migration, Brain drain, Human capital, Developping countries
Eight questions about brain drain
No full textHigh-skilled emigration is an emotive issue that in popular discourse is often referred to as brain drain, conjuring images of extremely negative impacts on developing countries. Recent discussions of brain gain, diaspora effects, and other advantages of migration have been used to argue against this, but much of the discussion has been absent of evidence. This paper builds upon a new wave of empirical research to answer eight key questions underlying much of the brain drain debate: 1) What is brain drain? 2) Why should economists care about it? 3) Is brain drain increasing? 4) Is there a positive relationship between skilled and unskilled migration? 5) What makes brain drain more likely? 6) Does brain gain exist? 7) Do high-skilled workers remit, invest, and share knowledge back home? and 8) What do we know about the fiscal and production externalities of brain drain?Population Policies,Tertiary Education,International Migration,Health Monitoring&Evaluation,Remittances
Eight Questions about Brain Drain
No full textHigh-skilled emigration is an emotive issue that in popular discourse is often referred to as brain drain, conjuring images of extremely negative impacts on developing countries. Recent discussions of brain gain, diaspora effects, and other advantages of migration have been used to argue against this, but much of the discussion has been absent of evidence. This paper builds upon a new wave of empirical research to answer eight key questions underlying much of the brain drain debate: 1) What is brain drain? 2) Why should economists care about it? 3) Is brain drain increasing? 4) Is there a positive relationship between skilled and unskilled migration? 5) What makes brain drain more likely? 6) Does brain gain exist? 7) Do high-skilled workers remit, invest, and share knowledge back home? and 8) What do we know about the fiscal and production externalities of brain drain?high-skilled emigration, brain gain, brain drain, development
The Elite Brain Drain
No full textWe collect data on the movement and productivity of elite scientists. Their mobility is remarkable: nearly half of the world's most-cited physicists work outside their country of birth. We show they migrate systematically towards nations with large R&D spending. Our study cannot adjudicate on whether migration improves scientists' productivity, but we find that movers and stayers have identical h-index citations scores. Immigrants in the UK and US now win Nobel Prizes proportionately less often than earlier. US residents' h-indexes are relatively high. We describe a framework where a key role is played by low mobility costs in the modern world.mobility, science, brain drain, citations
Remittances and the brain drain
No full textIn most destination countries, immigration policies are increasingly tilted toward the most skilled individuals. Whether this shift hurts economic prospects in sending countries, as argued by the traditional brain drain literature, is somewhat controversial. The most recent literature has focused on the link between skilled out-migration and educational achievements. In this paper, we emphasize a different channel. It is often argued that skilled migrants raise economic welfare at home thanks to a relatively larger flow of remittances. Skilled migrants typically earn relatively more and, ceteris paribus, will therefore remit more. However, they are also likely to spend a longer span of time abroad and also are more likely to reunite with their close family in the host country. Both factors should be associated with a relatively smaller flow of remittances from skilled migrants. Hence, the sign of the impact of the brain drain on total remittances is an empirical question. We first develop a simple model showing that skilled migrants may have indeed a lower propensity to remit home out of a given flow of earnings abroad. We then derive an empirical equation of remittances and estimate it on a large panel of developing countries. As a measure of the brain drain, we use the dataset by Docquier and Marfouk (2004) that in turn builds on the pioneering work of Carrington and Detragiache (2004). We find considerable evidence that the brain drain is associated with a smaller flow of remittances.remittances, migration, brain drain
Is the Brain Drain an Unmitigated Blessing?
No full textmigration, brain drain, eduction, remittances
Do Brain Drain and Poverty Result from Coordination Failures?
No full textWe explore the complementarities between high-skill emigration and poverty in developing countries. We build a model endogenizing human-capital accumulation, high-skill migration and productivity. Two countries sharing the same characteristics may end up either in a “low poverty/low brain drain” path or in a “high poverty/high brain drain” path. After identifying country-specific parameters, we find that, for a majority of countries, the observed equilibrium has higher income than the other possible one. In 22 developing countries (including 20 small states with less than 2 million inhabitants), poverty and high brain drain are worsened by a coordination failure. For 25 other countries, a radical worsening of economic performances is feasible. These results are fairly robust to identification assumptions and the inclusion of a brain-gain mechanism.Brain drain, Development, Multiple equilibria, Coordination failure
Asymmetric gate induced drain leakage and body leakage in vertical MOSFETs with reduced parasitic capacitance
No full textVertical MOSFETs, unlike conventional planar MOSFETs, do not have identical structures at the source and drain, but have very different gate overlaps and geometric configurations. This paper investigates the effect of the asymmetric source and drain geometries of surround-gate vertical MOSFETs on the drain leakage currents in the OFF-state region of operation. Measurements of gate-induced drain leakage (GIDL) and body leakage are carried out as a function of temperature for transistors connected in the drain-on-top and drain-on-bottom configurations. Asymmetric leakage currents are seen when the source and drain terminals are interchanged, with the GIDL being higher in the drain-on-bottom configuration and the body leakage being higher in the drain-on-top configuration. Band-to-band tunneling is identified as the dominant leakage mechanism for both the GIDL and body leakage from electrical measurements at temperatures ranging from ?50 to 200?C. The asymmetric body leakage is explained by a difference in body doping concentration at the top and bottom drain–body junctions due to the use of a p-well ion implantation. The asymmetric GIDL is explained by the difference in gate oxide thickness on the vertical (110) pillar sidewalls and the horizontal (100) wafer surface
Elite scientists and the global brain drain
No full textThere are signs – one is world university league tables – that people increasingly think globally when choosing the university in which they wish to work and study. This paper is an exploration of data on the international brain drain. We study highly-cited physicists, highly-cited bio-scientists, and assistant professors of economics. First, we demonstrate that talented researchers are being systematically funnelled into a small number of countries. Among young economists in the top American universities, for example, 75% did their undergraduate degree outside the United States. Second, the extent of the elite brain drain is considerable. Among the world’s top physicists, nearly half no longer work in the country in which they were born. Third, the USA and Switzerland are per capita the largest net-importers of elite scientists. Fourth, we estimate the migration ‘funnelling coefficient’ at approximately 0.2 (meaning that 20% of top researchers tend to leave their country at each professional stage). Fifth, and against our prior expectations, the productivity of top scientists, as measured by the Hirsch h-index, is similar between the elite movers and stayers. Thus it is apparently not true that it is disproportionately the very best people who emigrate. Sixth, there is extreme clustering of ISI Highly Cited Researchers into particular fields in different universities. Seventh, we debate the questions: are the brain drain and this kind of funnelling good or bad for the world, and how should universities and governments respond?
To be presented at the World Universities Conference in Shanghai, October 2007
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