因变量lnagdp

模型I

模型II

自变量

DIFI(1)

DIFI(2)

lnagdp_{i,t − 1}

0.360(0.000)***

0.360(0.000)***

lnagdp_{i,t − 2}

0.339(0.000)***

0.339(0.000)***

lnirrigated_it

0.006(0.820)

−0.000(0.986)

lnsown_it

0.118(0.000)***

0.118(0.000)***

lnmachinery_it

0.121(0.000)***

0.122(0.000)***

lnstaff_it

−0.103(0.011)**

−0.086(0.345)

lnfertilizer_it

0.106(0.000)***

0.105(0.003)***

lnelectricity_it

0.030(0.005)***

0.029(0.149)

常数项

-

−0.099(0.761)

Wald值

47755.44***

6687.63***

Sargan检验P值

0.0000

1.0000

AR(1)检验的P值

0.0000

0.0004

AR(2)检验的P值

0.4262

0.2130