Template-Type: ReDIF-Article 1.0 Author-Name: Cardenas S., Mauricio (Cardenas Santa-Maria) Author-Name: Ernesto Stein Title: Comments Journal: Economía Pages: 201-207 Volume: 1 Issue: 2 Year: 2001 DOI: 10.1353/eco.2001.0006 Handle: RePEc:aoo:10595