This article discusses the concept of rent and its use in analysis of
inequality in society. Rents are resources that provide advantages for
incumbents of social positions that are independent of the characteri
stics of the incumbents. Inequalities created by rents generate intere
sts in the protection and the acquisition of advantages that can be sa
id to form ''objective'' interests attached to positions in social str
ucture. Rent, therefore, is the basis for the formation of classes, in
the general meaning of conflict groups. The article also discusses re
nts not located in positions in social structure but based on natural
abilities.