Chen et al. (2020) claim a positive causal effect of the send-down movement on rural education during China’s Cultural Revolution. Their result hinges on a highly sensitive key variable: education attained by the treatment cohorts, which is found to be treated with upward bias and...

Soot formation has been a hurdle to the development of entrained flow gasification (EFG) technology, as it damages the apparatus and remains a pollutant. Soot has a poor gasification reactivity in the multiphase flow in furnace. In this study, differences in physicochemical properties and their...

Chen et al. (2020) claim to have found a positive causal effect of the send-down movement on rural education during China’s Cultural Revolution. The paper also infers that the movement made the contribution of human capital accumulation in rural areas to China's subsequent economic growth in...