The impact of the belt and road initiative on the Suez Canal cargo trade

Journal of Shipping and Trade

Table 7 ADF test results

Variable	ADF Test Statistic	p value	Variable	ADF Test Statistic	p value
SC	1.1275	0.9969	D(SC)	− 5.2603	0.0002*
CT	− 2.7413	0.0082*
BRI	− 1.2792	0.6269	D(BRI)	− 5.7294	0.0000*
NDP	− 0.4384	0.8905	D(NDP)	− 5.6100	0.0001*

*Estimated significance is at the 1% level. Automatic lag length selection uses the Schwarz Information Criterion (SIC)
D: the first difference level