Table 2 Summary of the explicative model without including zero WTP or WTA values.
Unstandardized coefficients | t | Sig. | 95% LLCI | 95% ULCI | VIF | ||
|---|---|---|---|---|---|---|---|
B | Robust S.E. | ||||||
Constant | 0.473 | 0.229 | 2.06 | 0.040 | 0.021 | 0.924 | |
Social Class* | |||||||
Group I | -0.619 | 0.166 | -3.72 | <0.001 | -0.946 | -0.291 | 1.94 |
Group II | -0.739 | 0.162 | -4.56 | <0.001 | -1.058 | -0.420 | 1.90 |
Group III | -0.534 | 0.167 | -3.20 | 0.001 | -0.863 | -0.206 | 1.74 |
Group IV | -0.537 | 0.147 | -3.65 | <0.001 | -0.826 | -0.247 | 2.29 |
Age | 0.016 | 0.003 | 4.77 | <0.001 | 0.009 | 0.022 | 1.41 |
Income in the Area (Lower vs Upper tercile) | 0.288 | 0.092 | 3.14 | 0.002 | 0.108 | 0.467 | 1.21 |
Adjusted family income (by 1000 €) | -0.123 | 0.038 | -3.23 | 0.001 | -0.198 | -0.048 | 1.33 |
Chronic Illness | -0.178 | 0.094 | -1.89 | 0.060 | -0.364 | 0.007 | 1.38 |