Volume 12, Number 46 (April-June) 2010

Vértice Universitario is a quarterly academic dissemination body of the Division of Economic and Administrative Sciences of the University of Sonora, Centro Unit. The ideas expressed in the articles are the absolute responsibility of the authors, which is why they do not necessarily reflect the point of view of the Institution. The reproduction and/or use of the materials is authorized, mentioning the sources. Print run: 400 copies. Offices: University of Sonora, Division of Administrative Economic Sciences; Building 10I, Blvd. Luis Encinas and Rosales, Hermosillo, Sonora, Mexico. Tel/Fax (62) 59 21 66.