This study shows that the cross-section “curse” result found with oil abundance indicators for producing countries disappears in a panel estimation considering the most important growth factors. This happens even excluding institutional quality, which is hindered by oil and ores abundance in several cross-section studies, causing the resource curse. In our estimations, neither of the oil indicators shows a significant impact on growth, but when we consider rig productivity there is a positive effect by capital efficiency in: (i) countries with medium and low income per head from East Asia & Pacific and Latin America & the Caribbean, all technological followers; (ii) countries with high income inequality. These results can reflect the broader scope for factor efficiency increases in less developed countries arising from the oil industry, which is described by a highly globalised know-how.
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