In a mature stock market of foreign countries, the price-earnings ratio approach and price-salesratio approach are used to assess the value of stocks in common.
Another big plus: Stocks are dirt-cheap, whether you consider price-to-cash flow, price-to-book value, price-to-salesratio or dividend yield.
另外，无论是从现金流价格、账面价格、销售价格比率还是红利角度考量，股价已经非常便宜。
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Still, even if you go with the high-end of our scale, as Dealbook seems to have done, the recent Goldman &Co. investment gives Facebook a price-to-salesratio of 25.