| Model (1) | Model (2) | Model (3) | Model (4) | |
| LogPIB_it-1 | 0.967*** (0.008) | 0.975*** (0.008) | 0.967*** (0.008) | 0.967*** (0.0085) |
| LogIDE | 0.008 (0.002) |
| 0.0082*** (0.0022) | |
| logYrs_Sch |
| −0.035*** (0.0102) | −0.094*** (0.019) | −0.132*** (0.041) |
| logFBCF | 0.0698*** (0.021) | 0.053** (0.022) | 0.060*** (0.0211) | 0.067*** (0.0211) |
| logConpub | −0.074 (0.121) | −0.071* (0.04) | −0.081** (0.042) | −0.083** (0.042) |
| LogOuvcom | −0.018 (0.0166) | −0.009 (0.017) | −0.0169 (0.02) | −0.02 (0.02) |
| LogPop_urb | −0.0102 (0.122) | −0.0025 (0.0036) | 0.0026 (0.002) | 0.002 (0.002) |
| LogIDE*Yrs_Sch |
|
| 0.012** (0.055) | |
| Constante |
|
| 0.478* (0.025) | 0.051** (0.256) |
| Number of observations | 207 | 245 | 207 | 207 |
| Number of groups | 5 | 5 | 5 | 5 |
| 1st difference AR-1 autocorrelation AB test | z = −1.78 | z = −1.84 | z = −1.82 | z = −1.79 |
| Pr > z = 0.075 | Pr > z = 0.066 | Pr > z = 0.068 | Pr > z = 0.07 | |
| 1st difference AR-2 autocorrelation AB test | z = −1.18 | z = −1.31 | z = −1.36 | z = −1.28 |
| Pr > z = 0.239 | Pr > z = 0.189 | Pr > z = 0.173 | Pr > z = 0.2 | |
| Sargan over-identification test | Chi2 (200) = 233 | Chi2 (237) = 309 | Chi2 (199) = 228 | Chi2 (199) = 229 |
| Prob > chi2 = 0.05 | Prob > chi2 = 0.001 | Prob > chi2 = 0.07 | Prob > chi2 = 0.07 |