The estimated results about the effect of technical barriers to trade on Vietnam's fruit and vegetable exports
| Variables | Pseudo Poisson maximum likelihood (PPML) | Generalized least squares (GLS) |
|---|---|---|
| lnPOPf | −0.114*** (0.011) | −2.231*** (0.201) |
| lnPOPh | 0.225 (0.281) | 6.222 (5.176) |
| GDPf | 0.071*** (0.009) | 1.428*** (0.161) |
| GDPh | −0.002 (0.027) | −0.348 (0.504) |
| TOf | −0.0004 (0.000) | −0.005 (0.005) |
| TOh | 0.0005*** (0.000) | 0.008** (0.003) |
| EX | 0.0001*** (2.53e−06) | 0.0002*** (0.000) |
| lnDIS | −0.041*** (0.011) | −0.636*** (0.200) |
| X1 | −0.008 (0.010) | −0.114 (0.163) |
| X2 | −0.001 (0.008) | −0.056 (0.159) |
| X3 | −0.004* (0.002) | −0.079*** (0.027) |
| X4 | 0.0001*** (0.000) | 0.002*** (0.000) |
| BOR | 0.317** (0.030) | 6.127*** (0.540) |
| CPTPP | −0.199** (0.081) | −3.518*** (1.410) |
| I | 0.001** (0.003) | 0.013** (0.005) |
| COVID | −0.007*** (0.003) | −0.126** (0.052) |
| GEf | 0.003 (0.006) | 0.0869 (0.293) |
| GEh | 0.0132* (0.019) | 0.264** (0.125) |
| R-squared | 0.914 | |
| Prob > χ2 | 0.000 |
| Variables | Pseudo Poisson maximum likelihood (PPML) | Generalized least squares (GLS) |
|---|---|---|
| lnPOPf | −0.114*** (0.011) | −2.231*** (0.201) |
| lnPOPh | 0.225 (0.281) | 6.222 (5.176) |
| GDPf | 0.071*** (0.009) | 1.428*** (0.161) |
| GDPh | −0.002 (0.027) | −0.348 (0.504) |
| TOf | −0.0004 (0.000) | −0.005 (0.005) |
| TOh | 0.0005*** (0.000) | 0.008** (0.003) |
| EX | 0.0001*** (2.53e−06) | 0.0002*** (0.000) |
| lnDIS | −0.041*** (0.011) | −0.636*** (0.200) |
| X1 | −0.008 (0.010) | −0.114 (0.163) |
| X2 | −0.001 (0.008) | −0.056 (0.159) |
| X3 | −0.004* (0.002) | −0.079*** (0.027) |
| X4 | 0.0001*** (0.000) | 0.002*** (0.000) |
| BOR | 0.317** (0.030) | 6.127*** (0.540) |
| CPTPP | −0.199** (0.081) | −3.518*** (1.410) |
| I | 0.001** (0.003) | 0.013** (0.005) |
| COVID | −0.007*** (0.003) | −0.126** (0.052) |
| GEf | 0.003 (0.006) | 0.0869 (0.293) |
| GEh | 0.0132* (0.019) | 0.264** (0.125) |
| 0.914 | ||
| Prob > | 0.000 |
Note(s): Standard errors are robust in the parentheses
***, ** and * are statistically significant at 1%, 5% and 10% levels, respectively
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