Table 2. Data stability test.

Unit root test		ingap	lncontri		agripro		lnrurin	urban
FISHER	Inverse chi-squared	188.90***	81.258		34.964		46.078	101.628***
	Inverse norma	-0.121	4.977		3.860		4.512	6.385
	Inverse logit t	-3.796***	3.843		4.239		4.885	4.686
	Modified inv	11.767***	1.941		-2.286		-1.270	3.800***
	chi-squared
LLC	Adjusted t	-34.486***	-8.050***		-4.324***		-7.042***	-4.441***
HADRI	z	10.512***	6.932***		8.483***		8.176***	8.372***
Unit root test		rd		goverinter		ecom		edu
FISHER	Inverse chi-squared	179.681***		108.348***		239.658***		183.223***
	Inverse norma	-0.704		0.219		-5.338***		0.315
	Inverse logit t	-4.021***		-0.896		-9.884***		-4.107***
	Modified inv	10.925***		4.414***		16.401***		11.248***
	chi-squared
LLC	Adjusted t	-9.371***		-5.906***		-16.190***		-12.575***
HADRI	z	6.302***		7.077***		7.893***		4.902***
panel cointegration tests		statistic		p-value
Westerlund		6.016		0.0000

Standard errors in parentheses

* p<0.1

** p<0.05

*** p<0.01.