El costo económico del "desperdicio de cerebros" : su magnitud en los países en desarrollo

TL;DRAbstract

The economic implications of the outflow of highly educated individuals from LDCs , i.e., the external brain drain , has received considerable attention in the developing literature. This paper draws attention to what might , by analogy, be called the internar' brain drain, i.e., a drain that takes place within a country. The central notion of the paper is the hypothesis of factor complementarity between preschool ability and education in determining an individual's future productivity. The existence of a particular measure of ability at preschool age fulfilling that complementarity implies that the impact of schoooling will be larger the higher the initial level of that ability in the individual. Under the above hypothesis , an optimal allocation of existing educational resources across individuais with different preschool abilities ( in the sense of maximizing the value added of these resources) must generate a positive and perfect correlation between that preschool ability and the a

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