(1)

M1

(2)

M2

(3)

M3

ER

−0.363^***

(0.0577)

−0.0948^**

(0.0179)

−0.121^***

(0.0389)

EE

2.556^***

(0.1746)

ind

−0.0166^***

(0.0032)

−0.00204^**

(0.0010)

−0.0114^***

(0.0020)

infr

0.0503^***

(0.0187)

0.0327^***

(0.0058)

−0.0334^**

(0.0127)

cons

2.124^***

(0.1909)

0.466^***

(0.0594)

0.932^***

(0.1420)

样本数量

130

130

130

Sobel-Goodman Mediation Tests (Indirect effect)

−0.2422^***

(0.0488)

Direct effect

−0.1210^***

(0.0388)

Total effect

−0.3632^***

(0.0577)

Indirect effect Proportion

66.68%