本文首发于智堡公众号：zhi666bao。

John Maynard Keynes is credited with saying, “When the facts change, I change my mind. What do you do, sir?” Over the past decade, policymakers across the globe have been focused on getting their economies and financial systems back in order. But at the same time, a sea change in supply-side realities has taken place. These changes have redefined what is achievable, and challenged conventional wisdom on monetary policy.

凯恩斯曾说，...