Researcher Robert Frank and his colleagues have discovered several remarkable things about people trained in neoclassical economics. In a number of tests, including a game theory test called the prisoner's dilemma (which measures a person's propensity to trust others), they found that neoclassical economists are more like than other people to betray their partners. . . .
Economists show, as it were, an unhealthy interest in the subject of self-interest.
--Tim Flannery, Here on Earth