Frans de Waal found that capuchin monkeys strongly oppose this phenomenon in an experiment where they were fed cucumbers. (-5[1])In The Spirit Level, Richard Wilkinson and Kate Pickett argued that this phenomenon “gets under the skin,” correlating with numerous negative health outcomes. Tony Atkinson’s index of this phenomenon (-5[1])includes a coefficient that represents aversion to this phenomenon. The “central contradiction of capitalism,” which holds that r exceeds g, leads to increasing levels of this phenomenon according (10[1])to Thomas Piketty. The size (10[1])of two areas (10[1])of the Lorenz Curve are compared in a measure of this phenomenon, the Gini coefficient. For 10 points, name this phenomenon, the disparity in outcomes between the rich and the poor. ■END■ (10[2])