Modelling the Impact of Government Policies on Import on Domestic Price of Indian Gold Using ARIMA Intervention Method

Table 2

Result of Unit Root test of preintervention period.

Tests of stationarity of the series
Test	Null hypothesis	At level	At first difference
ADF	Series is not stationary	−1.8015 (0.3800)	−22.449 (0.000)
KPSS	Series is stationary	0.1147 (0.739^#)	0.0173 (0.739^#)

Indicates significance at 1% level. Indicates critical value below which is the acceptance region of the null hypothesis.