A Penalty Function Approach to Bias Reduction in Nonlinear Panel Models with Fixed Effects
非线性固定效应面板模型中降低偏差的惩罚函数方法AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要明确研究带个体固定效应的非线性面板模型,核心问题是短时间维度下的参数估计偏差,因此归入面板数据方法。
非线性固定效应面板模型中降低偏差的惩罚函数方法AI 解读 ↓
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We consider estimation of nonlinear panel data models with individual specific fixed effects. Estimation of these models is complicated since estimation of the fixed effects when the time dimension is short generally results in inconsistent estimates of all model parameters. We present a penalized objective function that reduces the bias in the resulting point estimates. The penalty function is simple to construct and requires no modification for models with multiple individual specific parameters. We illustrate the approach through a series of simulations that suggest the approach is effective in reducing bias and in an empirical study of insider trading activity.