近日，我院助理教授苏应俊的合作论文“Ownership and Productivity in Vertically-Integrated Firms: Evidence from the Chinese Steel Industry”（合作者：Loren Brandt, Feitao Jiang, Yao Luo）被国际权威经济学期刊Review of Economics and Statistics接受发表。
We study productivity differences in vertically-integrated steel facilities using equipment-level information on inputs and output for each of the main stages in the value chain. We obtain stage-level productivity estimates by estimating a multi-stage production system and then integrate them into estimates for integrated facilities. At this level, we do not find statistically significant differences in productivity by ownership. This conceals important differences upstream and downstream in the value chain: Private firms outperform in pig-iron and steelmaking, but lag in sintering. Inferior access to higher quality raw materials and use of less automated technology are likely sources of these differences.
苏应俊，现任暨南大学经济与社会研究院助理教授，于2017年获得匹兹堡大学经济学博士学位。研究领域为产业组织、发展经济学，研究成果发表于Review of Economics and Statistics、Journal of Applied Econometrics等国际权威经济学期刊。