从历史来看，美联储并非没有救市行为，实际上它具备一定的救市职能。而且只要美联储出手救市，欧洲市场、日本股市等通常也会跟进，但这是有前提条件的，不必过于着急。美联储不可能不救，因为其宪法赋予了央行救市的职责。
前两天美国国债创下了1987年以来最大跌幅，但美联储并未出手。这背后涉及一个核心问题：美联储救市，究竟是为了保护美国穷人的利益，还是富人的利益？美国富人约90%的资金投向股市，而穷人60%的资产配置在债券市场。股市的涨跌直接影响富人的利益，也决定了他们的声音和出手力度。因此，每当美国股市出现大幅调整，通常都会迎来救市。一般而言，美股在一个月内下跌15%至20%，救市措施大概率会出台。
三年前，美国富人在股票市场的配置比例已高达90%。股市一旦崩盘，影响的不仅是富人利益，甚至波及全球利益。
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