The inflation-targeting models used by the Fed (and other central banks and official institutions like the International Monetary Fund) all assume the existence of some pre-determined limit to non-inflationary unemployment. The Fed’s latest model estimates this NAIRU to be 4.9-5.2%.
让我们回顾一下到最近的金融事件。美联储（以及其他国家央行和官方机构，如国际货币基金组织）所使用的通胀目标模型都假设存在着某个对非通胀型失业率的预设限值。美联储的最新模型估计该比率为4.9-5.2％。