ABSTRACT
Arthur Farkas has opened up a new era in the study of fairness and unfairness. The social concept that reward should be proportional to contribution leads naturally to the idea of a cognitive algebra of fairness and unfairness. A formal model for fairness algebra goes back to Aristotle, and this topic had a decade of recent popularity, centered on speculation and argument about fairness algebra. Farkas cut through this confusion with incisive experiments that solidly established a general cognitive algebra of fairness-unfairness.
