Matthew Richardson, a 23-year-old student at St. Peters College in Britain, was asked to travel to Beijing to deliver a series of lectures about economic theory. He was flattered by the invitation, though puzzled since he knew nothing about economics. But undaunted, he packed an economics textbook in his bag and took off to Beijing. It was only after he got there that he figured out that the people in Beijing had probably intended to invite Prof. Matthew Richardson from New York University, who's an expert on financial markets. But the faux Richardson bravely soldiered on, reading from his textbook, and no one seemed to notice that he didn't have a clue what he was talking about. In fact, he got a few compliments on the clarity of his lectures.