Describe the role of John M. Keynes in progress of world economy.

Following World War II, one major economic question dealt with the appropriate role for government in the economy. John Maynard Keynes, an English economist, developed theories that called for a large role for government in the economy. Daniel Yergin and Joseph Stanislaw (1998), explain Keynes' argument in this way: "The government would borrow money to spend on such things as public works; and that deficit spending, in turn, would create jobs and increase purchasing power. Striving to balance the government's budget during a slump would make things worse, not better. Keynes's analysis laid the basis for the field of macroeconomics, which treats the economy as a whole and focuses on government's use of fiscal policy--spending, deficits, and tax. These tools could be used to manage aggregate demand and thus ensure full employment. As a corollary, the government would cut back its spending during times of recovery and expansion." For more information about Keynes' ideas, read the two short paragraphs on Keynesian Economics...etc