The following commentary comes from an independent investor or market observer as part of TheStreet's guest contributor program, which is separate from the company's news coverage.NEW YORK ( TheStreet) -- In our view, the bull market likely continues with gusto throughout 2012, with strongly positive equity returns. Sentiment remains dour -- investors continue to fear an imminent eurozone collapse, too much debt, a deteriorating U.S. economy, political turmoil, etc. However, we view today's dour sentiment as an additional positive factor helping boost stocks in 2012, as even moderately better-than-expected outcomes should result in an upside surprise. And in our view, there's ample room for upside surprise. Overall, economic fundamentals are stronger than many appreciate. The following are just a few factors highlighting underappreciated economic strength.