Equation (4.1) | Equation (4.2) | Equation (4.3) | |
Constant | −1.492 | −1.782 | −2.075 |
(0.523) | (0.520) | (0.573) | |
Exchange rate | −0.001 | ||
(0.000) | |||
Trade openness (% GDP) | 0.030 | 0.030 | 0.038 |
(0.006) | (0.007) | (0.007) | |
FDI (% of GDP) | 0.088 | 0.065 | 0.061 |
(0.029) | (0.027) | (0.030) | |
Inflation | −0.003 | −0.003 | |
(0.002) | (0.002) | ||
Tariff rate, all products (%) | 0.041 | 0.038 | 0.038 |
(0.019) | (0.020) | (0.021) | |
AID (% of GDP) | 0.010 | 0.010 | 0.010 |
(0.002) | (0.002) | (0.002) | |
Observation | 77 | 77 | 79 |
R-squared | 0.64 | 0.61 | 0.61 |