Fernandes, Ana M. Learning-by-doing, learning-by-exporting, and productivity : evidence from Colombia / Ana M. Fernandes & Alberto E. Isgut - Washington DC : The World Bank (WB) , 2005 - 58p. : ill. ; 25 cm. - Policy research working paper No. 3544 . Subjects--Topical Terms: Total factor productivity--ColombiaExportsTrade Gov. Doc. Class. No.: UN WB PRWP-3544