空气质量对中国人口迁移的影响
|
|
曹广忠, 刘嘉杰, 刘涛
|
Examining the role of air quality in shaping the landscape of China′s internal migration: Phase characteristics, push and pull effects
|
|
CAO Guangzhong, LIU Jiajie, LIU Tao
|
|
表3 随机效应、固定效应及双向固定效应结果
|
Tab. 3 Random effect, fixed effect and two-way fixed effect results
|
|
| 变量 | （1）随机效应 | （2）地区固定效应 | （3）双向固定效应 | （4）双向固定效应 | | PM | -0.286*** | -0.292*** | -0.178*** | | | (0.029) | (0.027) | (0.035) | | | PGDP | -0.538 | -1.493*** | 0.985 | 1.591 | | (0.434) | (0.417) | (1.012) | (1.013) | | empⅡ | 0.214*** | 0.077* | 0.045 | 0.049 | | (0.047) | (0.040) | (0.042) | (0.041) | | empⅢ | 0.121*** | 0.031 | 0.044 | 0.067* | | (0.045) | (0.037) | (0.035) | (0.036) | | library | 0.032*** | -0.007 | -0.003 | -0.003 | | (0.007) | (0.008) | (0.009) | (0.008) | | school | 0.319* | 0.546*** | 0.440*** | 0.345** | | (0.186) | (0.176) | (0.165) | (0.157) | | hospital | 0.018 | 0.039 | 0.028 | 0.035 | | (0.034) | (0.036) | (0.038) | (0.038) | | pop | 1.884*** | 32.66*** | 35.15*** | 35.92*** | | (0.917) | (6.046) | (6.523) | (6.769) | | admin | 8.816*** | | | | | (1.801) | | | | | east | 7.350*** | | | | | (1.637) | | | | | mid | 3.759*** | | | | | (1.059) | | | | | agg | 7.381*** | | | | | (1.281) | | | | | year.2005 | | | -5.574*** | -8.493*** | | | | (0.945) | (0.820) | | year.2010 | | | -4.506*** | -8.060*** | | | | (1.697) | (1.631) | | year.2015 | | | -7.911*** | -11.690*** | | | | (2.239) | (2.187) | | Constant | -19.65*** | -176.0*** | -213.0*** | -227.2*** | | (6.167) | (33.58) | (40.80) | (41.89) | | Observations | 1089 | 1089 | 1089 | 1089 | | Adj.(伪) R-squared | 0.487 | 0.306 | 0.374 | 0.348 | | F (Wald chi2) | 495.81*** | 25.73*** | 26.26*** | 25.90*** |
|
|
|