If you are confused about the title, I stole the title from the Harvard Business Review Daily stat: <a href="http://web.hbr.org/email/archive/dailystat.php?date=022511" rel="nofollow">http://web.hbr.org/email/archive/dailystat.php?date=022511</a><p>But, I thought it would make more sense to link to the article detailing the actual study.