... price-earnings ratio : 价格-收益比率 P/E (price-earnings ratio) : 价格收益率 price ratio : 价比，比价 ...
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再利用计算机模拟股票价格收益率的分布特征，模型很好的刻画了现实证券市场中股票收益率分布的宽尾现象、长记忆性，以及累积分布中尾部收益的指数递减现象。
We investigate the fluctuation of price process in a stock market with Ising model and the mean field theory, and construct the corresponding random logarithmic price returns process.
理论上讲，当美联储买进证券时，证券价格会被推高，收益率会被拉低。
When it buys securities, in theory, that should drive up the price and drive down the yield.
储蓄的价格(债券收益率)因此降低。
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