Milton Friedman, the Nobel-prize winning economist who helped shape and define free-market economic theory, died Thursday at the age of 94 in San Francisco. 
 RIP..  We owe much to Friedman. Update:  This brief article about an experience an editor had playing tennis with Friedman says much about this tact and character.. Nobel economist Milton Friedman dead at 94 - Nov. 16, 2006  |