Meanwhile, unpredictable weather has also caused recent volatility in prices.

同时，易变的天气也造成最近价格的波动。

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The difference between the random walk fluctuations of correct asset prices and the unpredictable wanderings of a drunk are not discernable.

正确资产价格的随机波动，醉酒者无法预测的踉跄步伐，两者之间的差异难以辨别。

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Asset markets are unpredictable. When house prices in London stalled during 2004-05, many pundits thought the spell had been broken.

资产市场不可预测，当伦敦房价在04 - 05年之间停止上涨，很多学者认为房市增长动力已经不足。

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In poorer countries, where a larger part of family income is spent on food, unpredictable harvests and volatile food prices can lead to social unrest.

CNN: The driest season: Global drought causes major worries

Those who adhere to the random walk theory also point out that the timing of new data and news is unpredictable, and that stock prices react quickly to the introduction of new information.

FORBES: Are Stock Prices Random Or Chaotic?

But residential prices remain frozen, and the investment climate remains unpredictable.

ECONOMIST: Energy in South America