导致大宗商品价格剧烈波动，驱使在加利福尼亚和佛罗里达这些地方建造空无一人的住宅小区的投机行为或许会变得不那么显著。
The speculation that has produced wide swings in commodities prices and vacant subdivisions across California and Florida may become less prominent.
市场价格频繁的小涨小跌，但整体水平没有太大变化，这种波动通常是由投机性的行为引起的。
The market price goes small ups and downs frequently while there is no big overall changes. Such fluctuations of prices is often caused by speculation.
得出，羊群行为的存在增加了股票价格的波动。
The conclude is that herd behavior increases the price fluctuation of stock.
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