Template-Type: ReDIF-Article 1.0 Author-Name: Andres Gomez-Lobo Author-Name: Cardenas S., Mauricio (Cardenas Santa-Maria) Title: Comments Journal: Economía Pages: 189-194 Volume: 5 Issue: 2 Year: 2005 DOI: 10.1353/eco.2005.0012 Handle: RePEc:aoo:185122