Table 5 Poisson and negative binomial models
From: Organic vegetables demand in urban area using a count outcome model: case study of Burkina Faso
Frequency | Poisson (PRM) | Negative binomial (NBRM) |
|---|---|---|
Health | 0.1805846 (3.31)*** | 0.2229538 (2.05)** |
Distance | −0.0495767 (−4.00)*** | −0.0575186 (−2.75)*** |
Utilisation | −0.8727124 (−5.89)*** | −0.9575999 (−2.38)** |
Environ | 0.0431457 (0.78) | 0.0686963 (0.62) |
Support | −0.2043093 (−1.33) | −0.2126473 (−0.78) |
Value | 0.1625952 (1.86)* | 0.1670796 (0.97) |
Number of crop | −0.0188148 (−0.46) | −0.0150279 (−0.20) |
Power | 0.0779047 (1.60) | 0.0768872 (0.79) |
Gender | 0.9387853 (1.71)* | 1.064793 (1.00) |
Gend*Val | −0.1829558 (−1.99) | −0.2094394 (−1.16) |
Gend*Dist | 0.0308516 (2.39)** | 0.0397297 (1.83)* |
Constant | 1.835343 (3.35)*** | 1.88481 (1.71)* |
Lnalpha | −0.9359292 | |
Alpha | 0.3922212 | |
Log likelihood = −725.74641 | Log likelihood = −584.76611 | |
Observations: 202 | Observations: 202 |