Series	ADF Test Value	Critical Value			Outcome
Series	ADF Test Value	1%	5%	10%	Outcome
lnPP	−1.935843	−4.262735	−3.552973	−3.209642	Non stationary
∆lnPP	−5.481082^***	−4.273277	−3.557759	−3.212361	Stationary
lnGDP	−2.883426	−4.273277	−3.557759	−3.212361	Non stationary
∆lnGDP	−3.773876^**	−4.273277	−3.557759	−3.212361	Stationary
lnFDI	−1.550299	−3.646342	−2.954021	−2.615817	Non stationary
∆lnFDI	−3.304325^**	−3.699871	−2.976263	−2.627420	Stationary
lnDI	−2.975691	−4.296729	−3.568379	−3.218382	Non stationary
∆lnDI	−4.983489^***	−4.273277	−3.557759	−3.212361	Stationary
lnL	1.058008	−4.356068	−3.595026	−3.233456	Non stationary
∆lnL	−5.261270^***	−4.356068	−3.595026	−3.233456	Stationary