For 10 points, name this Italian social scientist who names an "optimality."
This man developed the theory of governing elites, psychologically or culturally homogenous entities shaped by complex social forces, in Mind and Society. This man is the namesake of the "law of the vital few," which states that approximately 80% of effects come from about 20% of causes. Kalldor and Hicks generalized a concept named for this man that describes a situation in which no one individual can become better off without making another person worse off. For 10 points, name this Italian social scientist who names an "optimality."
This man developed the theory of governing elites, psychologically or culturally homogenous entities shaped by complex social forces, in Mind and Society.
Vilfredo [Federico Damaso] Pareto