| Dependent variable | |||
| Explicative variables | Y1 | Y2 | Y3 |
| CONSTANT | −1.6797*** | −1.5089*** | −1.4434*** |
| (0.2768) | (0.2742) | (0.2776) | |
| TEND | 0.4138*** | 0.3640*** | 0.3076*** |
| (0.0788) | (0.0655) | (0.0699) | |
| Δln(L) | −0.5604*** | ||
| (0.1507) | |||
| Δln(L) [−1] | 0.4067*** | ||
| (0.1241) | |||
| Δln(PC) | 0.0369*** | 0.0286*** | 0.0412*** |
| (0.0092) | (0.0071) | (0.0091) | |
| Δln(PC) [−2] | 0.0574*** | 0.0418*** | 0.0568*** |
| (0.0113) | (0.0082) | (0.0112) | |
| Δln(HC) [−1] | 0.5276* | 0.5588** | 0.7355** |
| (0.2872) | (0.2220) | (0.2905) | |
| Δln(HC) [−2] | −0.7146** | −0.5987*** | |
| (0.2747) | (0.2131) | ||
| Δln(CH*AER) | 0.5823* | ||
| (0.3126) | |||
| INFRA_WATER [−1] | −0.0389* | −0.0496* | |
| (0.0207) | (0.0273) | ||
| INFRA_WATER [−2] | 0.0842*** | 0.0655*** | 0.0488* |
| (0.0286) | (0.0216) | (0.0274) | |
| INFRA_DRA [−2] | 0.3237* | 0.3537* | |
| (0.1869) | (0.1847) | ||
| INFRA_ELEC | 0.7271** | 0.4642* | 0.6531* |
| (0.3309) | (0.2534) | (0.3301) | |
| INFRA_ROADS | 0.5408*** | 0.2668* | 0.4731*** |
| (0.1818) | (0.1358) | (0.1799) | |
| Adjusted R2 | 0.68 | 0.77 | 0.67 |
| Observations | 108 (T = 3; N = 36) | ||