| Variable | Variable Explanation | Sample Size | Mean | Standard Deviation | Minimum | Maximum |
| cu | Capacity utilization rate | 1691 | 86.797 | 10.765 | 0.000 | 100.000 |
| land | Obstacle of land access | 2841 | 0.618 | 0.806 | 0.000 | 4.000 |
| landm | Land marketization rate | 2848 | 50.531 | 11.792 | 23.540 | 68.390 |
| lnfirmage | Firm age | 2766 | 2.429 | 0.522 | 0.000 | 4.890 |
| lntotalsale | Firm scale | 2840 | 16.709 | 1.759 | 4.605 | 24.412 |
| export | Firm export | 2844 | 6.791 | 20.264 | 0.000 | 100.000 |
| educ | Firm human capital | 2848 | 60.704 | 30.094 | 0.000 | 100.000 |
| lnk | Firm capital per labor | 1259 | 11.151 | 1.585 | 0.415 | 19.584 |
| capital | Capital city dummy | 2844 | 0.489 | 0.500 | 0.000 | 1.000 |
| city | City dummy | 2848 | 13.025 | 7.312 | 1.000 | 25.000 |
| industry | Industry dummy | 2848 | 39.503 | 21.033 | 15.000 | 100.000 |