Valencia, Sofia2018-04-102018-04-101990http://revistas.pucp.edu.pe/index.php/economia/article/view/702/679El artÃculo no presenta resumenapplication/pdfspainfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0EconomÃaMarket structure and innovation de Morton I. Kamien y Nancy L. Schwartzinfo:eu-repo/semantics/reviewhttps://purl.org/pe-repo/ocde/ford#5.02.01https://doi.org/10.18800/economia.199001.007