A recent Gallup study found that disengaged workers cost the U.S. economy $350 billion a year in lost productivity. This article from Fast Company gives an interesting overview from a study on how the “happiest” American companies boost morale and the bottom line. Apple and Google dropped from their top 10 spots down to #42 and #18, respectively. Meanwhile, pharmaceutical giant Pfizer climbed from #11 to take the top slot, followed by NASA and the U.S. Department of Defense. Find out what the top companies are doing….