Table 7 Kao panel cointegration test results.

From: Does larger scale enhance carbon efficiency? Assessing the impact of corporate size on manufacturing carbon emission efficiency

Group

 

t-Statistic

Prob.

Kao panel cointegration

ADF

−3.0382***

0.0012

Residual variance

0.0019

 

HAC variance

0.0019

 
  1. Note: *, **, and *** indicate that the significance test has been passed at the 10%, 5%, and 1% levels respectively.