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Difference GMM estimation results.
| Variables | Coefficient | t-statistic | Observations | No of Countries | Controls |
|---|---|---|---|---|---|
| lnbiofuels | 0.876*** | 3.54 | 470 | 47 | Yes |
| lnbiogeo | −1.954 | −1.62 | 639 | 87 | Yes |
| Lnhydro | 1.098** | 2.47 | 814 | 56 | Yes |
| lnsolar | 0.112 | 0.87 | 449 | 98 | Yes |
| lnwind | −1.876* | −1.75 | 610 | 87 | Yes |
