Journal of Markets and Morality, Forthcoming, 21 Pages Abstract Scholars of John Maynard Keynes' life and contributions to economics have tended to approach his involvement in the early 20th century eugenics movement by either: (1) historicizing it as a regrettable political curiosity with only minor connections to his larger system of economic thought or, (2) positing an evolutionary turn in Keynes’ thinking that led him to abandon his earlier neo-Malthusian principles in the late 1920s. In this paper, we reexamine the role that eugenicist beliefs played in the formation of Keynesian...