Page "Homo economicus" Paragraph 8

A wave of economists in the late 19th century — Francis Edgeworth, William Stanley Jevons, Léon Walras, and Vilfredo Pareto — built mathematical models on these assumptions.

In the 20th century, Lionel Robbins ’ rational choice theory came to dominate mainstream economics and the term Economic Man took on a more specific meaning of a person who acted rationally on complete knowledge out of self-interest and the desire for wealth.