变量 | 直接效应 | 间接效应 | 总效应 | |||
系数 | Z值 | 系数 | Z值 | 系数 | Z值 | |
exclim | −0.0584*** | 0.0134 | −0.1162* | 0.0640 | −0.1746** | 0.0729 |
city | −0.0007 | 0.0006 | 0.0072*** | 0.0027 | 0.0065** | 0.0031 |
lngdp | −0.0217 | 0.0153 | −0.3585*** | 0.0776 | −0.3802*** | 0.0867 |
invest | −0.2605** | 0.1143 | 0.0971 | 0.5574 | −0.1634 | 0.6092 |
edu | −0.0089 | 0.0065 | 0.0537 | 0.0328 | 0.0449 | 0.0373 |