Owing to the way that investment contracts are written and guidelines specified, there is a meaningful difference between a single and multiple rating downgrades. Were Moody’s to follow S&amp;P in stripping the US of its triple-A rating, the most likely outcome is that the universe of global investors who are both able and willing to increase their holdings of US government securities would shrink over time.
投资合同的具体条款和准则决定了单起降级和多起降级的意义具有重大差别。如果穆迪步标普的后尘，剥夺美国的AAA评级，那么最后可能的结果是有能力也愿意增加美国政府证券持有量的全球投资者会逐渐减磅。