Okay so now it doesn't have to do with unions but with IQ and "cultural diversity"?
Why is the US so rich if it has so much cultural diversity unlike Norway then?
Why is the US so rich if it has so much cultural diversity unlike Norway then?
Another possible reason is that there are unions and then there are unions. The same way as bringing democracy to Libya does not magically make it prosperous [1].
https://www.statista.com/statistics/455600/gross-domestic-pr...