Table 1 Statistical feature of the main variables
Variable name | Index | Sample number | Mean | Standard deviation | Minimum | Maximum |
|---|---|---|---|---|---|---|
Income gap between urban and rural areas | Gap | 6520 | 5.679404 | 2.810724 | 1.332908 | 23.24396 |
Transfer payment | Transfer | 8053 | 4.772247 | 7.482760 | 0.047015 | 94.20853 |
Western region or not | West | 8432 | 0.598672 | 0.490196 | 0 | 1 |
Distance | Distance | 8432 | −1.234651 | 4.656160 | −16.25232 | 8.757799 |
Per capital basic construction investment(10,000 yuan/person) | Infrastructure | 8224 | 0.177283 | 0.317755 | 0.001079 | 5.454545 |
Tax burden level | Tax | 8051 | 0.041999 | 0.016694 | 0.017679 | 0.078604 |
Per capital GDP(10,000 yuan/person) | Gdpper | 8340 | 0.577577 | 0.487237 | 0.050675 | 7.516575 |
Proportion of the first industry | Pindustry | 8238 | 0.320898 | 0.146475 | 0.005649 | 0.987018 |
Proportion of the second industry | Sindustry | 8234 | 0.355314 | 0.167509 | 0.005645 | 0.986210 |
Per capita fiscal revenue(10,000 yuan/person) | Grper | 7981 | 0.024567 | 0.033896 | 0.001671 | 1.112006 |
Urbanization rate | Urban | 8101 | 0.142832 | 0.094575 | 0 | 1 |
Population density | Densitypop | 8253 | 0.026757 | 0.023495 | 0.000014 | 0.151786 |
Balance of financial institutions loan at the end of the year | LnLoan | 8233 | 11.26259 | 1.038916 | 5.743003 | 13.99783 |
Percentage of students in school | Students | 8254 | 0.059936 | 0.018160 | 0.000418 | 0.252336 |