Today's teachable moment: stock prices tend to go up when the economy seems more secure. Claims for U.S. jobless benefits unexpectedly fell to a four-year low last week. Experts see that pointing to slightly better times in America. Stephen Wood, the chief market strategist at Russell Investment Group, says it's now a case of two economies -- Europe and the U.S. And the Daily Pulse is down today on this realization: no matter how you spin it, the housing market in America is still broken. The National Association of Home Builders/Wells Fargo Housing Opportunity Index was at its highest point in 20 years today. So what?