Who is John Maynard Keynes from Franklin D. Roosevelt and the New Deal, 1932-1940 and what is their importance?

Keynes was a British economist who disagreed with the classical economists over the role of government spending and government intervention in the economy. He felt that fiscal policy, or government spending, was necessary to stimulate the economy and pull it out of a depression. In other words, Keynes proposed deficit spending as the solution for the economy's problems.