I don't care much for politics and the only reason I blog about it is because I like Barack Obama. Today, I found a side of politics that could appeal to a "numbers guy" like myself. Paul Krugman cited the Poole-Rosenthal-McCarty model to determine how liberal or conservative Obama and McCain really are. Given the general perception that Obama is a big city ultra-liberal and that McCain is a centrist republican, a well-thought model was necessary to substantiate/debunk these perceptions. Instead of defining liberalism and conservatism on the basis of a person's stand on abortion, gun rights, gay rights, ... etc, I want to see a comprehensive study of all economic and social values. That's why I love Poole-Rosenthal-McCarty model. I read that Michael Dukakis' (1988) and John Kerry's (2004) lost in their presidential bids mainly because republicans labeled as elite, liberal, unpatriotic and out-of-touch. Apparently such labels really turn off the Am...