对我而言,经济学家们未能成功地指导政策,与他们倾向于尽可能仔细模仿得到光辉成功的物理科学的方法有密切关系——在我们的领域中可能导致直接错误的一种尝试。 To me, the failure of economists to guide policy successfully is intimately linked to their tendency to try to imitate as closely as possible the methods of obtaining a glorious and successful physical science - an attempt in our field that could lead to direct errors .