但同时又出现了另一个问题：央行们将如何达到一个退出非常规货币政策的最终“出口 ” ， 并把在非常规货币政策下过度膨胀的资产负债表恢复到“正常”的水平？
But another question looms: How will central banks achieve a final “exit” from unconventional monetary policy and return balance sheets swollen by unconventional monetary policy to “normal” levels?