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Enlace: http://repec.org/

Descripción: Research Papers in Economics is a collaborative effort of over 100 volunteers in 30 countries to enhance the dissemination of research in economics.
The heart of the project is a decentralized database of working papers, journal articles and software components. Any institution is welcome to join in contributing its research materials. All RePEc material is freely available.
The RePEc database holds over 155,000 items of interest, over 58,000 of which are available online.