Nobel economist Myron Scholes first floated the idea over lunch at a Riksbank forum in August. "I wonder whether Bernanke might not say that `we believe in a harmonized world, that the Europeans are our friends, and we know that the ECB can't print money to buy bonds because the Germans won't let them. And since the ECB will soon run out of money, we will step in and start buying European government bonds for them'. It is something to think about," he said.