Table 2.

Unit root test results.

Variables	Augmented Dickey fuller		Phillip Perron		KPSS (5 % CV(0.1460))	Integration order
	Coefficient	p-value	Coefficient	p-value	LM-Stat
GDPC	−4.5869	0.001y	−4.6196	0.001x	0.1261y	I(0)
RNR	−2.7552	0.073z	−2.8207	0.064z	0.1017y	I(0)
NRNR	−4.185350	0.002y	−4.019871	0.003y	0.1115y	I(0)
CRDPSEC	−1.0612	0.722	−1.2488	0.644	0.2717	I(1)
CRDPSEC	−4.7656	0.000x	−4.6872	0.001y	0.1230y
INF	−5.0583	0.000x	−5.0694	0.000x	0.0914y	I(0)
XPOT	−3.2736	0.022y	−3.2752	0.022y	0.1327y	I(0)

^{x,y and z} are the respective significant levels at 1 %, 5 % and 10 %. GDPC = Gross domestic product per capita, RNR = renewable natural resources, NRNR = Non-renewable natural resources, CRDPSEC = Credit to private sector, INF = Inflation, XPOT = Export of goods and services.