Variables	Level				Primary difference				Results
Variables	CIPS₁	CIPS₂	CIPS₃	Valeur critique	CIPS₁	CIPS₂	CIPS₃	Valeur critique	Results
GDP/capita	−3.014	−3.014	−3.169	−2.6	−	−	−	−	Stationary in level
Log (GDP/cap (-1))	−1.158	−1.658	−1.852	−2.34	−3.082	−3.082	−3.082	−2.6	Stationary in first diff
Ms	−1.801	−2.314	−1.830	−2.34	−3.536	−3.752	−3.921	−2.6	Stationary in first diff
Cred	−1.264	−1.264	−1.604	−2.34	−3.90	−3.90	−3.90	−2.6	Stationary in first diff
Trade	−2.624	−2.624	−2.624	−2.6	−	−	−	−	Stationary in level
Pop	−3.424	−4.656	−3.672	−2.6	−	−	−	−	Stationary in level
Sse	−1.365	−2.332	−1.365	−2.34	−3.655	−3.825	−3.655	−2.6	Stationary in first diff