Newsweek brought in an interesting graph of economists from the left and right.  I’ll just repeat it below.  From the top, it starts from left to right:

Karl Marx (1818-1883): Believed in total government control of the economy rather than a free-market system.

John Maynard Keynes (1883-1946): Argued for regulated finance and government spending to bring economies out of recession.

Joseph Stiglitz (b. 1943): Thinks markets often need governmental support.  Critical of Obama for doing to little to reform Wall Street.

Paul Krugman (b. 1953): Believes stimulus is too small, regulations too Wall-Street friendly.  Thinks worst banks should be nationalized.

Peter Orzag (b. 1968): Obama budget guru, ex-Stiglitz protégé.  Wants governments to play a key role in private industries like health care.

Christina Romer (b. 1958): Chair of Obama’s Coucil of Economic Advisers, has had to rethink her anti-Keynesian theories on deficit spending.

Paul Volcker (b. 1927): Former Fed chair slayed ’70’s “inflation dragon,” now wants to ban government-backed banks from risky bets.

Larry Summers (b. 1954): Formerly backed deregulation (with caveats), now wants new regulatory regime.  Critics say it doesn’t go far enough.

Ben Bernanke (b. 1953): Pre-crisis, Fed chair was seen as conservative Friedmanite; $2 trillion in loans later, he’s been cast as a neo-Keynesian.

Adam Smith (1723-1790): Founder of free-trade economics, held that self-interested creates prosperity for all as if by an “invisible hand.”

Alan Greenspan (b. 1926): Maestro of the ’90’s boom but also a libertarian, now seen as major culprit for consistently vetoing regulation.

Milton Friedman (1912-2006): Laissez-faire leader of Chicago School, said government’s only task was to oversee money supply.  The anti-Keynesian.