方法采用固定效应模型进行数据分析。

Methods The fixed effect model was used for data analysis.

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这些都是固定效应模型和横截面模型。

These are fixed effect model and cross section model.

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LM检验证明随机效应模型优于固定效应模型。

LM test proves the random effect model is superior to the fixed effect model.

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LM检验证明随机效应模型优于固定效应模型。

LM test proves the random effect model is superior to the fixed effect model.

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