His General Theory of Employment, Interest, and Money 1936 proposed the prevention of financial crises and unemployment by adjusting demand through government control of credit and currency. He is responsible for that part of economics now known as macroeconomics. Baron 1942. Keynes led the British delegation at the Bretton Woods Conference 1944, which set up the International Monetary Fund. His theories were widely accepted in the aftermath of World War II, and he was one of the most influential economists of the 20th century. His ideas are today often contrasted with those of monetarism. Keynes was a fellow of King's College, Cambridge. He worked at the Treasury during World War I, and took part in the peace conference as chief Treasury representative, but resigned in protest against the financial terms of the treaty. He justified his action in The Economic Consequences of the Peace 1919. His later economic works aroused much controversy.