Table 15 Average treatment Effect.

From: Impact of coal-to-gas transition on individual welfare considering the inverted U-shaped regulation effect of natural gas pipeline accessibility

LH

Processing group

Control group

ATT

Standard error

T value

Nearest neighbor matching

4.156

3.386

0.770***

0.049

15.68

Caliper matching

4.155

3.383

0.772***

0.042

18.49

Kernel matching

4.156

3.387

0.769***

0.043

17.87

Mean value

  

0.770

  

PH

Processing group

Control group

ATT

Standard error

T value

Nearest neighbor matching

4.001

2.747

1.254***

0.050

25.02

Caliper matching

4.001

2.756

1.245***

0.044

28.09

Kernel matching

4.001

2.743

1.258***

0.045

27.66

Mean value

  

1.252

  
  1. *** denotes statistical significance at the 1% level, respectively.
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