This paper studies panel data models with interactive fixed effects where the regressors are allowed to be correlated with the idiosyncratic error terms. We propose a two-step profile GMM estimation procedure to estimate the parameters of interest. In the first step we obtain a preliminary...

This paper briefly introduces the special preferential economic policies implemented by the Chinese government in ethnic minority areas. For statistical comparison and analysis, the authors divide China into ethnic minority economic zones and non ethnic minority economic zones. In some analyses,...

Taking population and education as examples, the authors introduce briefly the special preferential social policies implemented by the Chinese government in ethnic minority areas. For the statistical comparison analysis, the paper divides China into ethnic minority zones and non ethnic minority...

Engineering highly active earth-abundant oxygen evolution electrode (OEE) with a promising method for alkaline water splitting is an extraordinarily honorable challenge. In this work, a facile and effective strategy has been developed to obtain a self-supported OEE (marked as HNA-CA-ECA) with...

To study the combustion characteristics and fire hazard of polystyrene building exterior wall thermal insulation materials, the combustion, fire, and pyrolysis characteristics of thermosetting polystyrene (TPS) insulation, graphite polystyrene (GEPS), and expanded polystyrene (EPS) are compared...