Mr Varian and Mr Choi show that the addition of these search trends to econometric models improves the accuracy of their estimates.

Varian和Choi表示，共同利用这些搜索趋势和经济计量模型就能够提高预测的准确性。

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Lucas looked at the large econometric models of the 1970s, models that contained hundreds of variables relating economic aggregates like income, consumption, unemployment and so forth.

卢卡斯分析了20世纪70年代的所有大型经济学模型。这些模型中含有上百个诸如收入，消费，失业等等的经济集群值。

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Most western central Banks measure inflation expectations by questionnaire and econometric models, and use a variety of methods to manage inflation expectation.

西方国家中央银行大多通过问卷调查和计量模型对通胀预期进行测量，并采取多种方法对通胀预期进行管理。

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Econometric models I look at suggest unemployment averages over 9 percent through 2015.

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Mr Varian and Ms Choi show that the addition of these search trends to econometric models improves the accuracy of their estimates.

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But it turned out to be deeper than we knew or most of the econometric models showed, most of the blue chip estimates.

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