Krugman wants a weaker dollar, Mundell wants a weaker Euro, Japan wants a weaker Yen, and everyone wants a stronger Yuan except China.
It is impossible for everyone to get what they want: a weaker currency vs. everyone else hoping to stimulate exports.
Academia is never concerned with such details.
My money is on Zimbabwe Ben. He's a more fanatical debaser of the currency than his European counterparts. The Eurozone will break up before they'll print enough to keep up with ZB.