In a must-read editorial, The Economist hasn't a clue:
Mr Romney may calculate that it is best to keep quiet: the faltering economy will drive voters towards him. It is more likely, however, that his evasiveness will erode his main competitive advantage. A businessman without a credible plan to fix a problem stops being a credible businessman. So does a businessman who tells you one thing at breakfast and the opposite at supper. Indeed, all this underlines the main doubt: nobody knows who this strange man really is. It is half a decade since he ran something. Why won’t he talk about his business career openly? Why has he been so reluctant to disclose his tax returns? How can a leader change tack so often? Where does he really want to take the world’s most powerful country?