Columbia professor/economics all-star Joseph Stiglitz was on the Colbert Report last night. “You’re not my first Nobel Laureate,” Colbert informed him. Topics discussed included fellow Nobel-ers Paul Krugman and Al Gore, and the possible existence of “Nobel groupies.” Of course, the bulk of the conversation revolved around the economy, and why yesterday’s Dow points gain isn’t the end of any crisis. Colbert asks if Iraq is the answer, Stiglitz says it’s part of the problem.