Research Article

Loosening of Access Threshold and Downturns in Listed Firms Performance: A Quasi-Natural Experiment from the “IPO Green Channel” for Poverty Alleviation

Figure 4

ROA chart of Huabao oil and gas. Note: Huabao oil and gas was listed through the “IPO green channel” in 2017. Before the occurrence of the policy, the trend of the treatment group and the control group are roughly the same. However, after the policy occurred, the control group declined more severely than the treatment group with observable differences from the first three figures (the figure is directly exported by Stata software).