二十世纪三四十年代,凯恩斯与哈耶克就货币理论和商业周期问题发生了旷日持久的理论论战,成为历史上著名的“经济学决斗”。即使在凯恩斯和哈耶克相继逝世后,这场论争也以学术理辩、政策争辩的形式沿续着,几乎贯穿了整个现代经济学历史。2016年恰逢凯恩斯《就业、利息和货币通论》发表80周年,我们以时空对话的形式,尝试再现历史上这段经典的经济学理论交锋。 In the 1930s and 1940s, Keynes and Hayek took a protracted theoretical polemics over the issue of monetary theory and business cycle and became the famous “duel of economics” in history. Even after Keynes and Hayek passed away, the debate continued in the form of academic and policy debates, almost throughout the history of modern economics. The year 2016 coincided with the 80th anniversary of Keynes’s publication of the “General Theory of Employment, Interest and Currency”. In the form of a dialogue between time and space, we tried to reproduce this classic clash of economic theories in history.