Dependent variable: (lnCit) | ||||||
---|---|---|---|---|---|---|
Countries | Low- and lower-middle income | Upper-middle-income | ||||
Independent variables | Group1 (GNIit≦US$999)a | Group 2 (US$1000≦GNIit≦US$1999)b | Group 3 (US$2000≦ GNIit≦US$2999)c | Group 4 (US$3000≦ GNIit≦US$3999)d | Group 5 (US$4000≦GNIit≦US$5999)e | Group 6 (GNIit > US$6000)f |
Constant | 1.435 (0.203)** | 0.919 (0.182)** | −0.072 (0.256) | 0.831 (0.564) | 0.269 (0.341) | −0.757 (0.552) |
ln Pit | −0.037 (0.068) | − 0.146 (0.089) | − 0.488 (0.289)** | − 0.267 (0.238) | − 0.614 (0.155)** | −1.304 (0.306)** |
lnGNIit | − 0.161 (0.076)** | 0.046 (0.061) | 0.408 (0.078)** | 0.017 (0.165) | 0.327 (0.098)** | 0.769 (0.161)** |
FCTCit | 0.02 (0.012) | −0.048 (0.005)** | −0.154 (0.027)** | − 0.072 (0.023)** | −0.045 (0.023)** | − 0.103 (0.046)** |
Observations | 68 | 102 | 68 | 51 | 51 | 34 |
Number of country | 4 | 6 | 4 | 3 | 3 | 2 |
Hausman test | 60.07** | 7.41 | 34.56** | 34.65** | 39.08** | 20.81** |
R2 | 0.256 | 0.533 | 0.919 | 0.849 | 0.657 | 0.387 |
Wald F test | 91.131** | 146.45** | 23.555** | 23.663** | 79.333** | 21.077** |