The cat looks much more intelligent, and I'm sure its understanding of economics is much deeper than Krugman's, because Krugman is a decorated idiot.*
* A decorated idiot is a leftist idiot awarded a Nobel prize for 'conspicuous achievements in leftist ideology'. Representative idiots include Jimmy Carter, Paul Krugman, and Barack Obama. This is in contrast to a decorative idiot, which is what most of the politically active entertainers in Hollywood are.