Table 11 Regression results of the threshold effect.

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

Threshold variable

Threshold effect test

F

p Value

Crit10

Crit5

Crit1

lnER

Single threshold

35.48**

0.017

19.358

23.404

37.305

Double threshold

13.34

0.267

18.788

25.540

41.263

lnRD

Single threshold

24.66**

0.040

20.268

23.466

34.955

Double threshold

6.18

0.727

17.571

21.342

29.422

lnOPEN

Single threshold

45.60**

0.037

28.505

38.559

65.965

Double threshold

10.31

0.560

26.097

30.058

58.461

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