Want to Lose Weight this Year? You Bet. Economist Richard McKenzie says that when it comes to New Year's weight-loss resolutions, talk is cheap. If you really want to shed pounds in 2008, put a sizable wager on it. McKenzie discusses his op-ed "Dieting for Dollars," in the Wall Street Journal, and how — with $500 at stake — he lost 14 pounds in 10 weeks.