Harry Markowitz’s 1952 essay Portfolio Theory broke new ground in developing ways to diversify financial portfolios. By the time he won the Nobel Prize nearly four decades later, countless financial innovations to help spread risk had been introduced, making the risks associated with investing more acceptable -- particularly to the American middle class. Sure the markets are taking a hit now, but those with diversified portfolios are certain to weather this downturn better than those without.
U.S. economic public policy would… more