It has been suggested by critics that "dependency theory' is both misguided and no longer relevant to any study of today's free market global capitalist economy. However, the theory which remained of key influence during the 1970s still appears influential and increasingly appropriate, especially in relation to the continued polarisation of socio-economic fortunes of "the three worlds'. Nowhere is this more the case than in the study of migration, particularly with the flight of highly skilled "human capital' from the less developed countries (LDCs) to Western nations now increasingly dominating the movement of labour internationally. -Author

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international migration brain drain dependency theory migration flow theoretical studies migration