I like Wolfgang Munchau's columns on the Eurozone crisis a lot. But this one on claiming that macroeconomists need new tools is serious overreach. Anyone actually building, solving or just reading others' models, will see that it isn't right, not even a little bit, on a single point it makes. This is not to say macro doesn't have challenges to answer, or may indeed need 'new tools'. But these are not for any of the reasons given in Wolfgang's columns.