Panel statistics	Value	Z-value	P-value	Robust P-value
$G_{τ}$	−3.319	−0.930	0.176	0.007
$G_{α}$	−6.436	8.908	1.000	0.540
$P_{τ}$	−13.400	3.843	1.000	0.117
$P_{α}$	−6.465	6.829	1.000	0.200