Stage one gives law and property (producing inequalities of rich and poor), stage two gives a magistracy (producing weak and strong), and stage three is legitimate power becoming arbitray (producing master and slave).
Gist of Idea
Three stages of the state produce inequalities of wealth, power, and enslavement
Jean-Jacques Rousseau (Discourse on the Origin of Inequality , Part II)
This is the final answer to the prize essay question (with Idea 19772). What a beautiful analysis - and he didn't even win the prize this time!
Rousseau,Jean-Jacques: 'The Basic Political Writings', ed/tr. Cress,Donald A. [Hackett 1987], p.76
Idea 19772 In a state of nature people are much more equal; it is society which increases inequalities [Rousseau]