Systemic risk refers to problems that spill across different kinds of firms and markets, often in unexpected ways and sometimes very quickly. Perhaps the most prominent example from 2008 is the way that the failure of the investment bank Lehman Brothers risked brining about the imminent collapse of the insurer AIG, while also leading to intense pressure on money-market mutual funds.
系统风险是指影响到所有不同种类企业和市场的问题，通常以出人意料的方式爆发，且爆发速度可能非常迅速。自2008年以来，这方面最显著的例子也许是投资银行雷曼兄弟公司的倒闭几乎导致保险商AIG的立刻随之崩溃，还给货币市场共同基金造成了巨大压力。