Table 2.

Results of descriptive statistics and covariance matrix.

Variables	HHI	NV	NQF	NR	ROQ	LHI	RHI	RC	TR	IF	ORR
HHI	1
NV	0.223***	1
NQF	0.185***	0.741***	1
NR	0.192***	0.861***	0.561***	1
ROQ	0.280***	0.284***	0.264***	0.283***	1
LHI	0.585***	0.131***	0.119***	0.120***	0.221***	1
RHI	−0.085***	0.026***	0.007	0.044***	−0.019***	−0.115***	1
RC	0.006	−0.002	−0.004	−0.001	0.006	−0.001	0.002	1
TR	0.036***	−0.184***	−0.165***	−0.160***	−0.146***	−0.026***	−0.006	0.007	1
IF	0.095***	−0.017***	−0.027***	−0.015**	−0.005	0.053***	0.005	0.006	0.078***	1
ORR	0.238***	−0.129***	−0.092***	−0.138***	0.020***	0.228***	−0.184***	0.006	0.143***	0.011*	1
Mean	2.499	408.660	3.366	9.592	0.658	345.442	0.084	0.194	28.760	0.347	4.979
S.D.	2.825	488.579	6.901	11.033	0.475	317.038	0.027	0.136	2.892	1.018	2.241

*p < 0.05, **p < 0.01, ***p < 0.001.