Envy coupled with competition divides society into an upper and lower class, game theoretical study shows

Can class differences come about endogenously, i.e. independent of birth and education? Researchers pursued this issue in a game theoretical study. They were able to show that the basic human need to compare oneself with others may be the root cause of the formation of social classes.

source https://www.sciencedaily.com/releases/2020/06/200617121514.htm