Table 6 Robustness test results.

From: Reexamining the impact of foreign direct investment on carbon emissions: does per capita GDP matter?

 

Model (3)

Model (4)

Model (5)

Threshold Numbers

Single

Single

Single

Threshold estimator (level = 95%)

4.5027*

3.0601***

2.7144***

 FD

0.0111

0.1931**

0.3161***

 ES

0.3773**

0.0844

0.7560***

 TS

0.3649*

−0.1353

0.3979*

 TP

0.0197

0.1325

−0.0737

FDI(rjGDP ≤ γ1)

0.0331*

−0.4355***

0.1135***

FDI(rjGDP > γ1)

−0.0290

0.0113

−0.0087

Constant

−2.2459*

−0.5229

−6.3878***

  1. Notes: *, **, and *** indicate significance at the 10%, 5%, and 1% levels, respectively.
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