Nicholas Bloom the author of both papers is British.
Also, it's not like in economics/business science there's a European vs American distinction in publications. The European Economics Association is quite small and most European departments hire out of the American association's market, for instance
We've been over this several times now. Oxfam uses very disingenuous criteria, and their numbers are not to be trusted. They consider debt to be negative wealth, which means that a middle class family with no net savings and a mortgage on their house is "poorer" than a starving child with 2 cents on their pocket.
Also, it's not like in economics/business science there's a European vs American distinction in publications. The European Economics Association is quite small and most European departments hire out of the American association's market, for instance