In short, Krugman “has absolutely no idea about what caused the crash, what policies might have prevented it, and what policies we should adopt going forward” – except that the government should now spend money like a drunken sailor. Far from having too much math, economists need more, in order to “keep the logic straight.”
最令科克伦所诟病的是克鲁格曼对奥巴马总统所采取财政刺激方案的支持。他引用由哈佛经济学家罗伯特·巴罗翻出来的过时的“李嘉图的等价定理”来说明，“负债救助不会生效，因为人们会预期到现在政府债务会导致未来的税收增加，于是他们就不会存钱。反而会购买政府新发行的债券，从而使得政府的救助政策失灵。”