Template-Type: ReDIF-Article 1.0 Author-Name: Jaime Saavedra Author-Name: Urquiola S., Miguel (Urquiola Soux) Title: Comments Journal: Economía Pages: 212-216 Volume: 5 Issue: 1 Year: 2004 DOI: 10.1353/eco.2005.0010 Handle: RePEc:aoo:178393