Table 3.

Factor detection results.

Factor	PopDen	ei	Pgdp	ur	is	it
q statistic	0.1354	0.1137	0.1814	0.3040	0.0652	0.0992
p value	0.0000	0.0000	0.0000	0.0000	0.0000	0.0033

The specific meanings of the indicators in the table are shown in Table 1.