The reason a Mixed Economy doesn't work is that the State grabs more and more power and control as time goes by, despite periodic attempts to beat the State back. Obama's announcement today that he will regulate speculation more tightly is not good news. This administration tries one political gimmick after another because they have no idea what else to do. I suppose to some potential voters this trick announced today will seem like a proactive attack on rich bastards who manipulate markets to the detriment of poor people, but how many people really fall for these tricks? Tell me not many.