KPSS Tests in Differences - Control Variables
	Model 1		Model 2		Model 3
	PP Stat	p-Value	PP Stat	p-Value	PP Stat	p-Value
Industrial Production	1.5563991	0.0608027	0.2297831	0.1000000	0.0564447	0.1
Geopolitical Risk	0.0112220	0.1000000	0.0107665	0.1000000	0.0102688	0.1
One Year Interest	0.0269309	0.1000000	0.0479766	0.1000000	0.0368343	0.1
Ten Year Interest	0.2010990	0.1000000	0.1325718	0.1000000	0.0742101	0.1
REER	0.1065481	0.1000000	0.1167940	0.1000000	0.0903868	0.1
Kilian Index	0.0277213	0.1000000	0.0254693	0.1000000	0.0227695	0.1
US Oil Production	0.4137358	0.1000000	0.5772851	0.0247014	0.0700293	0.1
Model 1: No drift or trend Model 2: With drift, no trend Model 3: With drift and trend