This study estimates union wage premiums and analyzes the influence of trade unions on the wage gap between rural migrants and local urban workers in China by employing the Blinder–Oaxaca decomposition method based on national longitudinal survey data from the China Family Panel Studies (2010–2018). The results indicate that the union wage premium among rural migrant workers is greater than that among local urban workers. The disparity in union density widens the wage gap, whereas the difference in union wage premiums narrows the wage gap between the two groups. Moreover, the contribution rate of the former is greater than that of the latter. These results suggest that expanding union coverage among rural migrant workers could effectively contribute to reducing the wage gap.
This paper draws on a natural experiment generated by the Key Tax Source (KTS) supervision in China to evaluate the impact of strengthening tax administration on firm's emission behavior. Using a Fuzzy Regression Discontinuity Design, we find that KTS supervision by State Administration of Taxation significantly improves firm's SO2 emissions. The mechanism analysis shows that, KTS firms tend to reduce their tax burden by over-emitting pollution; Meanwhile, local governments loosen environmental regulation on the KTS firms, which eventually causes KTS firms to adjust the energy utilization structure and reduce environmental protection investment. Further analysis shows that the pollution emission by KTS firms can be reduced by the implemented of tax credits and the improved environmental regulation standards.
Employing the exogenous scenario of the “New Rules on Asset Management” in April 2018, this paper tries to explore the impact of the contraction of Chinese shadow banking on corporate investment behavior. This paper finds that the regulation leads to a 18.3% decrease in capital expenditure for firms relying on shadow banking system prior to the shock. Then, this paper tests three underlying mechanisms, which include the decrease of corporate borrowing, the increase of corporate financing constraints and the reduction of debt maturity. This paper also provides the empirical evidence that the implementation of the “New Rules on Asset Management” optimizes the allocation of capital across firms.

