Matching results for the variables before and after entropy balancing
| Treat | Control (before entropy weighting) | Control (after entropy weighting) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Variable | Mean | Variance | Skewness | Mean | Variance | Skewness | Mean | Variance | Skewness |
| Size | 22.140 | 1.610 | 0.731 | 22.240 | 1.707 | 0.729 | 22.140 | 1.610 | 0.731 |
| Lev | 0.422 | 0.043 | 0.181 | 0.428 | 0.039 | 0.214 | 0.422 | 0.043 | 0.181 |
| Roa | 0.051 | 0.002 | −0.416 | 0.046 | 0.002 | −0.792 | 0.051 | 0.002 | −0.416 |
| Cfo | 0.047 | 0.005 | −0.142 | 0.051 | 0.004 | −0.026 | 0.047 | 0.005 | −0.142 |
| PB | 3.561 | 7.925 | 2.664 | 3.677 | 9.505 | 2.646 | 3.561 | 7.925 | 2.664 |
| Exfin | 1.942 | 73.040 | 7.171 | 2.133 | 85.750 | 6.680 | 1.942 | 73.040 | 7.170 |
| Top1 | 0.344 | 0.021 | 0.512 | 0.352 | 0.022 | 0.460 | 0.344 | 0.021 | 0.512 |
| Indep | 0.373 | 0.003 | 1.446 | 0.377 | 0.003 | 1.243 | 0.373 | 0.003 | 1.446 |
| Board | 2.145 | 0.039 | −0.291 | 2.122 | 0.040 | −0.288 | 2.145 | 0.039 | −0.291 |
| Exeshare | 0.078 | 0.021 | 2.109 | 0.075 | 0.020 | 2.150 | 0.078 | 0.021 | 2.109 |
| Exepay | 14.34 | 0.518 | 0.162 | 14.43 | 0.441 | 0.232 | 14.34 | 0.518 | 0.162 |
| Audit | 0.982 | 0.018 | −7.293 | 0.982 | 0.018 | −7.178 | 0.982 | 0.018 | −7.293 |
| Treat | Control (before entropy weighting) | Control (after entropy weighting) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Variable | Mean | Variance | Skewness | Mean | Variance | Skewness | Mean | Variance | Skewness |
| 22.140 | 1.610 | 0.731 | 22.240 | 1.707 | 0.729 | 22.140 | 1.610 | 0.731 | |
| 0.422 | 0.043 | 0.181 | 0.428 | 0.039 | 0.214 | 0.422 | 0.043 | 0.181 | |
| 0.051 | 0.002 | −0.416 | 0.046 | 0.002 | −0.792 | 0.051 | 0.002 | −0.416 | |
| 0.047 | 0.005 | −0.142 | 0.051 | 0.004 | −0.026 | 0.047 | 0.005 | −0.142 | |
| 3.561 | 7.925 | 2.664 | 3.677 | 9.505 | 2.646 | 3.561 | 7.925 | 2.664 | |
| 1.942 | 73.040 | 7.171 | 2.133 | 85.750 | 6.680 | 1.942 | 73.040 | 7.170 | |
| 0.344 | 0.021 | 0.512 | 0.352 | 0.022 | 0.460 | 0.344 | 0.021 | 0.512 | |
| 0.373 | 0.003 | 1.446 | 0.377 | 0.003 | 1.243 | 0.373 | 0.003 | 1.446 | |
| 2.145 | 0.039 | −0.291 | 2.122 | 0.040 | −0.288 | 2.145 | 0.039 | −0.291 | |
| 0.078 | 0.021 | 2.109 | 0.075 | 0.020 | 2.150 | 0.078 | 0.021 | 2.109 | |
| 14.34 | 0.518 | 0.162 | 14.43 | 0.441 | 0.232 | 14.34 | 0.518 | 0.162 | |
| 0.982 | 0.018 | −7.293 | 0.982 | 0.018 | −7.178 | 0.982 | 0.018 | −7.293 | |
Note(s): This table reports matching results for the variables before and after entropy balancing. We divide the whole sample into two groups based on Commun, in which the high-interaction companies are the treated group and the low-interaction companies are the control group. The control variables in model (2) are weighted to reduce the differences between the two groups in the first moment (mean), second moment (variance) and third moment (skewness). Ultimately, we obtained 16,665 matching sample observations
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