Index of average stock price is energy meter of economic power.

指数(平均股票价格)是经济力的活力仪表。

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No wonder the dow Jones industrial average stock price index in early August day plummet 513 points.

难怪道琼斯工业股票平均价格指数8月初时一天就暴跌513点。

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So the Dow Jones number you hear in the news each night is simply this weighted average of stock prices. Because of this, the Dow Jones Industrial average should just be considered a price in itself.

因此，你每天晚上从新闻所了解到的道琼斯指数，都只不过是这些股票价值的一个加权平均数，正因为如此，道琼斯指数只能作为衡量它自身价值的一个数值来考虑。

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I start $100 as the average price of the stock, what should the average price of the stock be?

我把100美元作为股票的初始平均值，你们觉得这个股价的平均值应该是多少呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

The average stock price-earnings ratio is about 14, or 20% cheaper than in 2007.

WSJ: Review & Outlook: A Record Dow

They analyzed each closing stock price before and after the date of a public announcement and found that the average stock price 120 days before a phase III clinical trial announcement showed an increase of 13.7 percent for companies that reported positive trials and a 0.7 percent drop for those reporting negative trial results ( here is the abstract).

FORBES: Why Pharma Stocks May Rise Before Trial Data Is Released

Companies experienced an average abnormal stock price increase of .84% in the two days following an announcement of eco-friendly behavior.

FORBES: CSR Pays for Itself: Here's the Evidence