This week Ron and Ed are thrilled to have Steven E. Landsburg, professor of Economics at the University of Rochester, where students recently elected him Professor of the Year. He is the author of The Armchair Economist, Fair Play, More Sex is Safer Sex, The Big Questions, two textbooks in economics, a forthcoming textbook on general relativity and cosmology, and over 30 journal articles in mathematics, economics and philosophy. His current research is in the area of quantum game theory. He writes the monthly 'Everyday Economics' column in Slate magazine, and has written regularly for Forbes and occasionally for the New York Times, the Wall Street Journal and the Washington Post. He appeared as a commentator on the PBS-Turner Broadcasting series 'Damn Right', and has made over 200 appearances on radio and television broadcasts over the past few years.