Sensitivity Analysis of Stationarity Tests’ Outcome to Time Series Facets and Test Parameters

Table 3

Impact of trend component consideration and time series facets on test results and critical values of KPSS test.

Model equation (for KPSS)	d1		d2		d3		d4
	Test result	Critical value	Test result	Critical value	Test result	Critical value	Test result	Critical value
With only drift component	0.0578	0.4630	15.9197	0.4630	0.0314	0.4630	14.8379	0.4630
With both drift and trend components	0.0242	0.1460	0.2979	0.1460	0.0293	0.1460	0.2922	0.1460