CAMBRIDGE – As policymakers and investors continue to fret over the risks posed by today’s ultra-low global interest rates, academic economists continue to debate the underlying causes.&#160; By now, everyone accepts some version of US Federal Reserve Chairman Ben Bernanke’s statement in 2005 that a “global savings glut” is at the root of the problem.
美国剑桥—决策者和投资者仍对当今极低的全球利率而不安，学界经济学家则仍在争论背后的原因。目前，所有人都在某种程度上同意美联储主席伯南克2005年的讲话：“全球储蓄过剩”是问题的根源。但经济学家就过剩的原因、过剩会持续多久以及更基本的，过剩是否事件好事等问题存在分歧。