The descriptions of the variables
| Variables | Observations | Average | SD | Min | Max |
|---|---|---|---|---|---|
| SO2 | 215,186 | 10.1518 | 2.0344 | 0.0000 | 18.6735 |
| GPP | 215,741 | 0.0262 | 0.1597 | 0.0000 | 1.0000 |
| Capital | 215,741 | 5.3802 | 0.9510 | 2.9867 | 7.8975 |
| Size | 215,741 | 5.5395 | 1.1058 | 3.0910 | 8.6002 |
| Age | 215,741 | 2.3257 | 0.8705 | 0.0000 | 4.0943 |
| SOE | 215,741 | 0.1668 | 0.3728 | 0.0000 | 1.0000 |
| Foreign | 215,741 | 0.0578 | 0.2334 | 0.0000 | 1.0000 |
| HHI | 215,741 | 0.2925 | 0.3195 | 0.0441 | 2.3588 |
| Output | 215,741 | 0.0754 | 0.5354 | 0.0000 | 84.5864 |
| GDP | 215,741 | 16.0513 | 1.0489 | 12.2377 | 18.9610 |
| FDI | 215,741 | 9.9333 | 2.0957 | 0.0000 | 14.9001 |
| Variables | Observations | Average | SD | Min | Max |
|---|---|---|---|---|---|
| SO2 | 215,186 | 10.1518 | 2.0344 | 0.0000 | 18.6735 |
| GPP | 215,741 | 0.0262 | 0.1597 | 0.0000 | 1.0000 |
| Capital | 215,741 | 5.3802 | 0.9510 | 2.9867 | 7.8975 |
| Size | 215,741 | 5.5395 | 1.1058 | 3.0910 | 8.6002 |
| Age | 215,741 | 2.3257 | 0.8705 | 0.0000 | 4.0943 |
| SOE | 215,741 | 0.1668 | 0.3728 | 0.0000 | 1.0000 |
| Foreign | 215,741 | 0.0578 | 0.2334 | 0.0000 | 1.0000 |
| HHI | 215,741 | 0.2925 | 0.3195 | 0.0441 | 2.3588 |
| Output | 215,741 | 0.0754 | 0.5354 | 0.0000 | 84.5864 |
| GDP | 215,741 | 16.0513 | 1.0489 | 12.2377 | 18.9610 |
| FDI | 215,741 | 9.9333 | 2.0957 | 0.0000 | 14.9001 |
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