Li, Cong; Liang, Zhongwen - In: Journal of Econometrics 185 (2015) 2, pp. 420-434
In this paper, we investigate the problem of estimating nonparametric and semiparametric panel data models with fixed … estimators for the smooth unknown function in nonparametric panel regressions. One is a local linear estimator constructed … similar as the one in Mammen et al. (2009) which was proposed for the additive nonparametric panel model. The other is the …