2024全国医学博士英语作文预测：新冠病毒和市场动荡

Start with the first, volatility. Equity market instability might feed on itself. ]C
Tu|  
　　The VIX, which measures the expected volatility implied by the price of options on the S&P 500 index, jdhhvo
Q  
　　vaulted from around 15 to above 27 in a matter of days. Some investment strategies are particularly sensitive to it. za24-q  
　　For example when volatility is low, they allow for a bigger weighting of equities in portfolios. x*_c'\F|  
　　But when it rises and stays high, some investors are forced to unload some of their holdings—creating yet more volatility. D L$P  
　　Some exchange-traded funds whose value is linked to the VIX saw outflows. ;KnnAZJ  
　　It is likely that at least some investors have been betting on continued near-dormant volatility. [jafPi(#g  
　　The resilience of such strategies could be tested. yvVs9"|0  
　　A bigger worry is credit markets and in particular corporate debt, which has soared over the past decade. QjRVdb>  
　　A sharp rise in borrowing costs would hurt firms that need to roll-over maturing bonds d/|@"z^?  
　　and would also rattle America's huge private-credit markets. (=7e~'DC  
　　The last big global growth scare, in late 2018, caused a panicky sell-off that briefly threatened to become a credit-crunch. ^D\#*pIO  
　　So far the interest-rate spread over Treasuries demanded by investors to hold high-yield corporate paper YRB,jwne  
　　has widened to 4.3 percentage points, with much of the impact felt by energy-sector bonds. That is cause for concern, not alarm. /*st,P$"  
　　But new issuance has halted—by February 26th Wall Street had gone three days without any high-grade offerings, according to Bloomberg. ]T+{]t  
　　If that continues there will be a corporate liquidity squeeze. iS02uVmBZ  
　　Interest-rate cuts cannot do much to remedy the disruption. But they can help to soothe credit markets. ~u V.jh  
　　Easier policy from the Federal Reserve has in the past—notably in 1998— @1rF9< 4g  
　　been fuel for a late-cycle rally in risk assets in the face of formidable headwinds. 4F/Q0"  
　　A fortnight ago, just a single interest-rate cut from the Fed was priced in by the markets, YsDn?pD@  
　　says Kit Juckes of Societe Generale, a French bank. Now two are. &x\u.wIa  
　　"We may be pricing in a third, if not a fourth, within a few weeks unless there's a dramatic change in the covid-19 news." )=8X[<^i  
　　首先是波动性。股市的不稳定可能会自食其果。 }`>u+iH#a  
　　衡量标准普尔500指数期权价格隐含预期波动率的VIX指数 wxF9lZz  
　　在几天内从15左右升至27以上。一些投资策略对它特别敏感。 w!tQU9+*  
　　例如，当波动性较低时，它们允许在投资组合中赋予股票更大的权重。 :0V<  
　　但当它上升并保持在高位时，一些投资者被迫抛售他们持有的一些股票，这就造成了更大的波动。 ~,dj)x 3M  
　　一些价值与VIX挂钩的交易所交易基金出现了资金外流。 Nqy',N  
　　至少有一些投资者可能一直押注持续接近隐匿的波动性。 hO\_RhsRy?  
　　这些策略的弹性是可以检验的。 z]~B@9l  
　　更令人担忧的是信贷市场，尤其是过去10年飙升的公司债务。 w0VJt<e*  
　　? T*O!r`.Ak  
　　借贷成本的急剧上升将会伤害那些需要对到期债券进行展期的公司， ^-mz!{  
　　同时也会使美国庞大的私人信贷市场陷入混乱。 S+_}=25  
　　上一次全球经济增长恐慌发生在2018年末，当时引发了恐慌性抛售，并一度有演变成信贷紧缩的危险。 HuCH`|v-  
　　到目前为止，投资者持有高收益公司债券所需的国债息差 omY%sQ{)  
　　已扩大至4.3个百分点，其中大部分影响来自能源板块的债券。这值得担心，但不必恐慌。 s+^YGB  
　　根据彭博社报道，新的发行已经停止——到2月26日，华尔街已经三天没有任何高等级债券发行。 %0. o(U  
　　如果这种情况持续下去，将出现企业流动性紧缩。 ~%(r47n  
　　降息并不能弥补这种混乱。但它们可以帮助稳定信贷市场。 MiAXbo#\  
　　过去，美联储早期较为宽松的政策——尤其是在1998年—— cKdy)T%;  
　　曾推动风险资产在面临可怕逆风的情况下在晚周期出现反弹。 i$$\}2m{L  
　　法国兴业银行的Kit Juckes表示两周前， 7DXT1+t  
　　市场已经消化了美联储一次降息的影响。现在是两次。 6D@tCmmq  
　　“除非关于Covid-19的新闻出现戏剧性变化，否则在几周内， 市场可能不是要消化第四次就是第三次。 lD.PNwM  

不会考新冠了吧，翻篇了