We consider a computationally simple orthogonal projection method to implement the (Bai and Ng in Econometrica 70:191–221, 2002) information criterion to select the factor dimension for panel interactive effects models that bypasses issues arising from the joint estimation of the slope coefficients and factor structure. Our simulations show that it performs well in cases the method can be implemented.

中文翻译：

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面板交互效应模型的因子尺寸确定：正交投影方法

我们考虑一种计算简单的正交投影方法来实施（Econometrica 70：191-221中的Bai和Ng）信息准则，以选择面板交互效应模型的因子维，从而绕过因联合评估坡度系数和因素结构。我们的仿真表明，在可以实施该方法的情况下，它的性能很好。