SAN FRANCISCO – There is a big difference between the Federal Reserve’s mandate to maintain “stable prices” – as enunciated in the Federal Reserve Act – and the Fed’s self-selected target of 2% annual inflation. So how is it that policymakers have managed to substitute the latter for the former?
旧金山—美联储维持“物价稳定”的使命（由联邦储备法明文规定）和美联储自己选择的2%通胀目标之间有一个极大的不同点。那么，决策者为何用后者代替前者呢？