Statistical Inferences Using Large Estimated Covariances for Panel Data and Factor Models
面板数据与因子模型中使用大型估计协方差的统计推断
While most of the convergence results in the literature on high dimensional covariance matrix are concerned about the accuracy of estimating the covariance matrix (and precision matrix), relatively less is known about the effect of estimating large covariances on statistical inferences. We study two important models: factor analysis and panel data model with interactive effects, and focus on the statistical inference and estimation efficiency of structural parameters based…