Template-Type: ReDIF-Article 1.0 Author-Name: Cecilio Valverde Title: Texto Abstract: Classification-JEL: R1 Pages: 11-14 Volume: 03 Year: 1981 File-URL: http://www.revistaestudiosregionales.com/documentos/articulos/pdf915.pdf File-Format: Application/pdf Handle: RePEc:rer:articu:v:03:y:1981:p:11-14