Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
We use the new International Trade and Production Database for Estimation to obtain benchmark gravity estimates for an unprecedented range of 170 industries. We document differences and similarities of standard gravity variables across four broad sectors: Agriculture, Mining and Energy, Manufacturing, and Services. We test the robustness of our main estimates against some key data and estimation approaches from the related literature. The findings from these experiments confirm the robustness of our main findings and reinforce some stylized facts, while highlighting possible caveats for gravity estimation in other contexts.