Table 6 Heterogeneity analysis results of pilot policy effects based on climate hazard.

From: The mediating effect of urban water system climate resilience in the impact of sponge city pilot policy on ecological welfare

Variable

Group of heavy rain hazard

Group of drought hazard

High

Medium

Low

High

Medium

Low

Policy

0.0081

0.0131*

0.0092

0.0127*

0.0126*

0.0053

(1.34)

(1.86)

(1.07)

(1.89)

(1.87)

(0.77)

Constant

0.8179***

0.5351**

0.1263

0.7693***

0.3216***

0.5884***

(5.12)

(2.60)

(1.65)

(4.25)

(4.03)

(3.30)

Control variables

YES

YES

YES

YES

YES

YES

City FE

YES

YES

YES

YES

YES

YES

Year FE

YES

YES

YES

YES

YES

YES

Observations

1,023

1,023

1,034

1,023

1,023

1,034

R2

0.611

0.631

0.275

0.562

0.410

0.561

  1. Robust t-statistics are in brackets, and ***p < 0.01, **p < 0.05, *p < 0.1.
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