Volcker, Greenspan and Bernanke

Ben BernankeAlan GreenspanFederal ReservePaul Volcker
Left to right: Former Fed chairmen Paul Volcker, Alan Greenspan and Ben S. Bernanke pose during a ceremony marking the centennial of the founding of the Federal Reserve. Combined the men led the Fed for more than a third of its existence. Nicholas Kamm / AFP / Getty Images