"Everybody wants to go back into academia and be respected, so you don't want to say anything too foolish that people are going to laugh at you afterward," Professor Munnell explained.Which probably explains things like the following:
At times Professor Mankiw, who has returned to Harvard, sounded more like Scott McClellan, the White House press secretary, than an economic adviser. "The president is very focused on putting people back to work, at creating jobs," he said. "The president has said that he wants to make the tax cuts permanent. He believes that is important for economic growth."