The 'haves' know what NASDAQ is; the 'have-nots' are eating yak BY DAVE BARRY (This classic DAVE BARRY column was originally published on May 21, 2000.) What lies ahead for the U.S. economy? Will it remain strong? Or will it collapse? Will all the Internet billionaires go broke and be forced to use their Palm Pilots to kill rats for food? Wouldn't that be great? To answer these questions, we need to understand how the U.S. economy works. We'll start by following an imaginary dollar bill on its fascinating journey as it circulates through our economic system: Our dollar is...