金融财经英语表达：being long or short
There is an asymmetry in the risk/reward ratio between being long or being short in the stock market. (Being long means owning a stock, being short means selling a stock one does not own.)在股市中做多或做空，存在风险回报率的不对称。（做多指的是持有一只股票，做空指的则是出售自己并不拥有的某只股票。）
Being long has unlimited potential on the upside but limited exposure on the downside. Being short is the reverse. The asymmetry manifests itself in the following way: losing on a long position reduces one's risk exposure while losing on a short position increases it. As a result, one can be more patient being long and wrong than being short and wrong. The asymmetry serves to discourage the short-selling of stocks.
做多拥有无限上行潜力，而下行风险却是有限的。做空的情况恰好相反。不对称以下述方式表现出来：人们在多头头寸上亏损会降低其风险敞口，而在空头头寸上亏损会增加风险敞口。因此，人们对做多失误的容忍度，会高于做空失误。这种不对称阻碍了股票卖空交易。
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