The Inca Empire needed an organized and efficient government to administer vast territories. The power was centralized in the Inca (emperor), who was granted a divine origin. It is necessary to emphasize the operation of two basic principles: the reciprocity and the redistribution. Reciprocity, from an existence prior to the Inca domain, was a mechanism that operated within the villages and communities, allowing mutual aid, cooperation and the regulation of exchanges. For example, agricultural work was carried out by all the members of an family group by virtue of the ties of reciprocity in force, and the product of labor was shared among all.