Keynes, John Maynard (1883–1946)

Keynes is best known as an economist but, in the tradition of John Stuart Mill and William Stanley Jevons, he also made significant contributions to inductive logic and the philosophy of science. Keynes’ only book explicitly on philosophy, A Treatise on Probability (1921), remains an important classic on the subject. It develops a non-frequentist interpretation of probability as the key to sound judgment and scientific reasoning. His General Theory of Employment, Interest and Money (1936) is the watershed of twentieth-century macroeconomics. While not, strictly speaking, a philosophical work, it nonetheless advances distinct readings of rationality, uncertainty and social justice.