Does mixed-ownership reform improve SOEs' innovation? Evidence from state ownership
研究中国混合所有制改革对国有企业创新的影响，发现改革提升了创新，且在垄断行业和东部发达地区效果更强，同时反向改革也提升了民营企业的创新。
This paper investigates the impact of the ongoing mixed-ownership reform on the innovation activities of SOEs in China. We find that the reform improves SOE’s innovation, and the impact is heterogeneous, by exploring in different industries and different regions with the influence of macroeconomic environment. This effect is stronger for SOEs in monopoly industries and eastern developed region. As a new form of state-sector reform, this mixed-ownership reform happens not only in SOEs like previous privatization, but also in a reverse direction. We also find its positive impact of improving the innovation for POEs being mix-reformed. To deal with endogeneity concerns, PSM, DiD and IV estimations are used. We also introduce highway as an instrumental variable, All the results in the 2SLS estimations are robust. Additional tests help isolate the effect of intervention from explanations of macro-economic effects, including house price, private employees, credit and equity finance.