在过去的五年中，世界被危机困扰，美联储通过两种方式影响了世界经济：积极地买入长期资产 — — 所谓的量化宽松（QE ） ； 以及很大程度上被忽视的提供国际流动性。
In these last five crisis-ridden years, the Fed has affected the world economy in two ways: through its hyperactive policy of purchasing long-term assets – so-called quantitative easing (QE) – and through its largely overlooked role in providing international liquidity.