| Variable | Model 1 | Model 2 | ||
| Selection equation (NOPROTEST = 1) | Participation equation (IO = 1) | Selection equation (IO = 1) | Willingness to pay equation (IA = 1) | |
| CONSTANT | −0.5927*** (−4.923) | −1.9567** (−2.464) | −1.9449*** (−8.376) | −1.5616*** (−4.761) |
| BID |
|
|
| −0.0190*** (−8.873) |
| INCOME | 0.1493*** (6.519) | 0.1105* (1.707) | 0.1121** (3.076) | 0.2691*** (6.796) |
| NRESOURCES | 0.3949*** (5.327) | 0.7196*** (3.912) | 0.7057*** (6.606) | −0.8282*** (4.773) |
| ENVIRONMENT |
| 0.4812*** (3.459) | 0.5324*** (3.701) | 1.1093*** (5.105) |
| NEWHABITS |
| 0.2848** (2.272) | 0.2743** (2.155) | 0.8033*** (5.888) |
| CITY | −0.2110** (−2.892) | −0.3687** (−3.126) | −0.3359*** (−3.249) | −0.3837** (−2.949) |
| ADMINISTRATION |
|
|
| −0.4842 (2.594)** |
| FUSE | 0.4111*** (4.656) | 1.4372*** (7.021) | 1.4674*** (11.287) |
|
| CONCERNED | 0.2482** (2.980) | 0.4402** (2.801) | 0.4182*** (3.291) |
|
| STUDIES | 0.3307** (2.816) |
|
|
|
| JOBLESS |
|
| −0.3576** (−2.258) | −0.9174*** (−3.666) |
| EXISVAL |
|
|
| 0.3976** (2.958) |
| MANAGEMENT |
|
|
| 0.5608*** (3.208) |
| Log-likelihood | −1280.023 | −742.7060 | ||
| ρ | 0.248 | 0.661** | ||
| N | 307 | 214 | ||