Yang, Liying; Qian, Yi; Xie, Hui - National Bureau of Economic Research - 2024
Endogeneity is a primary concern when evaluating causal effects using observational panel data. While unit-specific intercepts control for unobserved time-invariant confounders, dependence between (i) regressors (e.g., marketing mix strategy of interests) and the current error term (regressor...