Variable | Standard Poisson regression | Negative binomial regression (NBR) | ||||||
---|---|---|---|---|---|---|---|---|
Rural dwellers | Urban dwellers | Rural dwellers | Urban dwellers | |||||
Coef. | Std. err. | Coef. | Std. err. | Coef. | Std. err. | Coef. | Std. err. | |
Gender | −0.1840** | 0.0836 | −0.1918 | 0.1428 | 0.0347 | 0.1495 | 0.0144 | 0.0695 |
H_size | −0.0502*** | 0.0174 | −0.0488 | 0.0308 | 0.0050 | 0.0408 | 0.0113 | 0.0179 |
Age | 0.0141*** | 0.0041 | 0.0140* | 0.0075 | 0.0029 | 0.0073 | 0.0039 | 0.0034 |
Educ | 0.0015 | 0.0094 | 0.0002 | 0.0165 | 0.0121 | 0.0184 | 0.0110 | 0.0084 |
Occup | −0.2884*** | 0.1077 | −0.2440 | 0.1845 | −0.1626 | 0.1797 | −0.1824** | 0.0869 |
P_income | −0.1313*** | 0.0408 | −0.1274* | 0.0755 | 0.1396 | 0.0942 | 0.1455*** | 0.0448 |
Yr_cons | 0.0019 | 0.0031 | 0.0016 | 0.0057 | −0.0007 | 0.0073 | −0.0024 | 0.0034 |
V_diversity | 0.0458*** | 0.0173 | 0.0472 | 0.0320 | 0.0472 | 0.0365 | 0.0495 | 0.0166 |
Mrkt_dist | 0.0177 | 0.0369 | −0.0029 | 0.0656 | 0.0667 | 0.0913 | 0.0652 | 0.0440 |
Nutrit | −0.1143 | 0.1919 | −0.1642 | 0.3221 | 0.1191 | 0.3486 | 0.1390 | 0.1625 |
Medic | 0.7309*** | 0.1874 | 0.7140** | 0.2981 | 0.0775 | 0.2408 | 0.0756 | 0.1135 |
Price_Per | −0.0459 | 0.0944 | −0.0774 | 0.1687 | −0.1673 | 0.1833 | −0.1630* | 0.0842 |
Constant | 0.5966* | 0.3117 | 0.7503 | 0.5266 | 1.1863* | 0.6343 | 1.1532*** | 0.2990 |
/lnalpha |  | −1.1629 | 0.2321 | −0.5039 | 0.1512 | |||
Alpha | 0.3126 | 0.0725 | 0.6042 | 0.0914 | ||||
LR test of alpha = 0 |  | χ 2(01) = 73.83 | χ 2(01) = 247.79 | |||||
Pr ≥ χ 2 = 0.0000*** | Pr ≥ χ 2 = 0.0000*** |