环境规制、政府补贴对企业技术创新的耦合影响
袁丽静, 郑晓凡

Coupling induction of environmental regulation and government subsidy on enterprise technological innovation
Lijing YUAN, Xiaofan ZHENG
表2 面板数据单位根检验结果
Table 2 Panel data unit root test
变量 LLC检验
统计量 P
ln(Patent -10.611*** 0.000
ER -4.069*** 0.000
ER2 -4.125*** 0.000
ln(SUBS -5.780*** 0.000
ln(ENT -11.694*** 0.000
lnL -11.686*** 0.000
ln(Size -4.037*** 0.000
lnGDP -3.655*** 0.000
OPEN -3.360*** 0.000
ln(SUBS)×ER -3.312*** 0.001