Political factors also have a bearing on an agrarian system due to issues such as land ownership, labor organization, and forms of cultivation.
[1] As food security has become more important, mostly due to the explosive population growth during the 20th century, the efficiency of agrarian systems has come under greater review.
[2] The Ottoman agrarian system was based around the tapu, which involved a permanent lease of state-owned arable land to a peasant family.
In Haiti there was a social system based on collective labor teams, called kounbit, where farms were run by nuclear families and exchanges.
This was replaced by smaller groups, called eskouad, who operated on a reciprocal basis or conducted collective labor to other peasants for a price.