Observed

Coef.

Bootstrap

Std. Err.

z

P > |z|

Normal-based

[95% Conf. Interval]

_bs_1(ind_eff)

0.0000518

0.0001365

0.38

0.704

−0.0002157

0.0003192

_bs_2(dir_eff)

0.0116238

0.0017548

6.62

0.000

0.0081844

0.0150632