Level (0)			First level
Variable	Z	P	P m	Z	P	P m
Bai and Carrio n-i-Silvestre (55)
EG	0.846	18.662	−0.583	−2.795***	74.349***	4.879***
URB	0.338	11.978	0.821	−3.715***	80.189***	2.971***
PPL	0.297	23.143	0.446	−5.478***	71.088***	3.018***
PCI	0.184	17.179	1.214	−4.089***	67.489***	5.089***
LPI	0.141	9.541	−0.591	−2.049**	85.146***	5.300***
LAB	0.389	21.879	−1.088	−13.384***	60.054***	7.371***
CPT	1.018	24.113	−0.679	−1.708**	45.189*	1.348*
CE	3.516	19.241	0.751	8.136***	58.015***	8.367***

10, 5, and 1% of significance level is shown, respectively, by *, ** and ***. CIPS means chartered institute of procurement and supply. MCIPS means members of chartered institute of procurement and supply.