Table 9

Analysis of the heterogeneity of green patent types

VariablesIGpatp-valueUGpatp-value
ESG0.091***0.0100.063***0.009
Age−0.0290.020−0.108***0.019
Size0.495***0.0110.385***0.010
Lev0.0500.0680.294***0.062
Growth0.050*0.0240.082***0.023
RD0.027***0.0030.0010.003
Indep0.3200.1830.2920.169
TobinQ0.032***0.0050.021***0.005
Duality−0.0260.025−0.0050.023
_cons−10.107***0.252−7.033***0.232
IndYesYes
YearYesYes
r2_a0.3830.406
F0.3780.401

Note(s): ***, ** and * indicate significant confidence levels at 1, 5 and 10%, respectively

Source(s): Developed by the authors

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