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First Author:
 
Juan Carlos Chavez-Martin del Campo
Guanajuato School of Economics, Universidad de Guanajuato
jcc73@quijote.ugto.mx
 
UCEA, Universidad de Guanajuato, Campus Marfil
Guanajuato, 36250, Mexico
 
(59) 473 73 2925 ext 2925(Phone)
(59) 473 73 2925 ext 2925(Fax)
http://ugto.org