tag:blogger.com,1999:blog-2462767072762603820.comments2024-02-27T07:26:31.356-08:00Luis Guillermo Vélez Álvarez. Economista. Docente. Consultor .ECSIM.Luis Guillermo Vélez Álvarezhttp://www.blogger.com/profile/08086505433585855088noreply@blogger.comBlogger0125