A world-topping 95 percent of Vietnamese say that most people are better off in free-market economies, and 76 percent of Chinese agree, according to a Pew survey of nearly 49,000 people worldwide that might have astonished Ho Chi Minh and Mao Zedong. Seventy percent of Americans and 65 percent of those in the U.K. expressed support for a free-market economic system. ...