与此同时，决策者因为“有效市场假说”等经济理论的广泛接受而志得意满，有效市场假说认为投资者的行为是理性的，在作出决策时会利用一切可获得的信心。
Meanwhile, policymakers were lulled into complacency by the widespread acceptance of economic theories such as the “efficient-market hypothesis,” which assumes that investors act rationally and use all available information when making their decisions.