大部分投资者认可，在短时间内，债券更加安全同时收益较好。
Most investors agree that for the short term, bonds offer greater security and return.
当我们遇到选择的时候，我们会把成本和收益列举出来，并且选择较好的哪一个。
When it comes to a decision between alternatives we enumerate the cost and benefits and decide which one is better.
对19个国家25年（1975—2000）月度数据的拟合效果表明在经汇率调整后的对美国股市收益率差有着较好的拟合结果。
Our empirical results from historical data of 19 countries in 25 years (1975-2000) show that the return differential of equity market has good prediction power for currency crises.
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