I wonder if this includes Christiania, the billion Euros of cannabis sold there each year, and the big lift all those drug tourists impart on the local service industry. Beautiful place by the way, would recommend.
Source (from 2015): https://www.dst.dk/da/informationsservice/blog/2015/12/narko...
As for tourism, it’s just one of a long list of tourist attractions in and around the city.
It would not make a huge difference if Christiania disappeared tomorrow (although Christianshavn would be a much nicer place).