基于此，本文构建了条件双因子评价模型，并且以中国全部54只封闭式基金为样本采用面板数据回归技巧验证了该模型的有效性。

This paper builds a conditional two-factor measure model, and proves the efficiency of this model using panel data regression skill. The samples are 54 Chinese close-end funds.

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本文以中国的省际面板数据为样本，对这一假说进行了实证检验。

This paper carries out an empirical study on such a hypothesis based on the Chinese provincial data and finds supporting evidence.

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在运用面板数据模型进行实证分析时，由于使用的样本数据包含了个体、时间、指标三个方向上的信息，因此模型形式的设定非常关键。

When doing the empirical analysis with the Panel-Data model, it is crucial to set the form of model correctly, because the sample data includes the information of individual, time, and so on.

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