Fig 1.
Theoretical mechanism of the impact of environmental regulation on the export technological sophistication of enterprises.
Table 1.
Regional differences in environmental regulation.
Table 2.
Export technological sophistication during 2004–2010.
Fig 2.
Scatter diagram of environmental regulation and export technological sophistication during 2004–2010.
Fig 3.
Distribution of manufacturing enterprises across years and provinces.
Table 3.
Descriptive statistics.
Table 4.
Benchmark regression results.
Table 5.
Regression results of the heterogeneity in trade patterns.
Table 6.
Regression results of the heterogeneity in located region.
Table 7.
Empirical results of the heterogeneity in ownership.
Table 8.
The mediating effect of command-control environmental regulation.
Table 9.
The mediating effect of market-incentive environmental regulation.
Table 10.
The mediating effect of voluntary-participation environmental regulation.
Table 11.
Regression results of endogeneity.