Fig 1.
The carbon emission reduction path of regional integration policy.
Fig 2.
Heterogeneous pathways of regional integration policies on carbon emission reductions.
Table 1.
Carbon emission coefficients for various fossil fuels.
Table 2.
Carbon emission efficiency indicator system.
Table 3.
Measurement of control variables.
Table 4.
Descriptive statistics table.
Table 5.
Estimated results of the baseline model.
Fig 3.
Parallel trend test of total carbon emissions.
Fig 4.
Parallel trend test of carbon emission intensity.
Fig 5.
Parallel trend test of carbon emission efficiency.
Fig 6.
Placebo test results of total carbon emissions.
Fig 7.
Placebo test results of carbon emission intensity.
Fig 8.
Placebo test results of carbon emission efficiency.
Table 6.
Regression results after excluding related policies.
Table 7.
Digital level indicator system.
Table 8.
Mechanism analysis regression results I.
Table 9.
Regression results for mechanism analysis II.
Table 10.
Decomposition results for carbon emission efficiency.
Table 11.
Impact of regional integration policy on factor inputs.
Table 12.
Heterogeneity in total carbon emissions.
Table 13.
Heterogeneity in carbon emission intensity.
Table 14.
Heterogeneity in carbon emission efficiency.