Table 5 Results of heterogeneity by natural geographic location.

From: Harvesting environmental sustainability—the fertilizer use efficiency gains of China’s high-standard farmland initiative

Variables

Model 1

Model 2

Model 3

DID

1.178* (0.605)

−0.687 (0.143)

−2.765* (1.463)

Control variables

Yes

Yes

Yes

Time fixed effects

Yes

Yes

Yes

Regional fixed effects

Yes

Yes

Yes

_Cons

−3.162*** (0.700)

−3.410*** (0.705)

−2.215** (0.837)

R2

0.791

0.769

0.729

N

120

90

90

  1. ***, **, and * signify statistical significance at the 1%, 5%, and 10% levels, respectively.
Back to article page