稳健性检验——不同带宽时

带宽值

Coef.

Std. Err.

z值

p值

95% CI

0.010 (0.25倍)

−0.015

0.014

−1.067

0.286

−0.042~0.013

0.020 (0.5倍)

−0.003

0.013

−0.241

0.810

−0.028~0.022

0.030 (0.75倍)

−0.005

0.006

−0.742

0.458

−0.017~0.008

0.040 (1倍)

−0.009

0.006

−1.517

0.129

−0.022~0.003

0.050 (1.25倍)

−0.006

0.007

−0.961

0.336

−0.019~0.007

0.060 (1.5倍)

−0.003

0.006

−0.427

0.670

−0.015~0.010

0.070 (1.75倍)

−0.003

0.006

−0.453

0.650

−0.014~0.009

0.080 (2倍)

−0.005

0.006

−0.859

0.390

−0.016~0.006