The brain drain from developing countries Updated

Brain drain need not be a curse—it can be a catalyst: under the right conditions, selective emigration promotes skills acquisition and economic development in the country of origin.

Luxembourg Institute of Socio-Economic Research (LISER), Luxembourg, and IZA@LISER, Luxembourg

Nova School of Business and Economics, NOVAFRICA, Portugal, and IZA@LISER, Luxembourg

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Elevator pitch

Brain drain refers to the selective emigration of highly educated people, who often have stronger incentives to migrate and face fewer barriers. At first glance, this seems to be an adverse situation: losing doctors, engineers or teachers could hinder development. However, migration can also be beneficial by spurring investment in skills, fueling remittances, fostering innovation, business links, and transfers of knowledge and norms. The net impact depends on the skills involved and the context, creating an opportunity for policies that transform emigration into a driver of development.

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Key findings

Pros

Selective emigration raises incentives to invest in higher education and training in developing countries.

Remittances improve household welfare and often finance education or productive local investments.

Diaspora networks and returnees promote trade, foreign investment, transfers of knowledge and social norms.

Recent evidence suggests that many developing countries experience net gains from selective emigration.

Cons

Skilled outflows can create shortages in critical sectors such as health and education.

Short-run fiscal losses arise, especially when publicly funded graduates emigrate permanently.

Brain gain outcomes are less likely in remote regions with limited schooling capacity.

Author's main message

After two decades of research, there is an increasing amount of evidence that supports the brain gain hypothesis for many developing countries. This contradicts earlier fears of brain drain. Selective emigration can stimulate education, increase incomes and improve well-being in various ways, but these outcomes depend on factors such as access to quality schooling and migration costs. By shaping these conditions, policymakers can ensure that mobility drives development. Pilot programmes that link education and training to legal migration pathways could provide evidence before being scaled up.

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