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 was submitted in the III National Congress of Rural Development during 24-25 November 2011. UPOLI Nicaragua.

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.