This paper don�t was submitted on the conference, however the author participated on the event. He member of the European Association of Agricultual Ecnomist (EAAE)

This paper is a serie work as Researching Centre for Agrarian Sciences and Applied Economic contribution to rural development.

This article is the first working paper of the Researching Center for Agricultural Sciences and Applied Economic. It is a contribution for the INTA Nicaragua.

The paper was submitted on the VII Central American University Congress that was hold on the National Autonomous University of Nicaragua, Le�n as a greetings toward the Unan Le�n Bicentenary 1812-2012.