[wmf]

Drugs aren't a free market in many countries; Europe is paying less because of government regulations not because people are willing to pay less.

[StefanWestfal]

That is right, but it is a global market where Novo Nordisk can decide to sell in a country or not, so I do not think they would sell below cost. I agree with the point that the US pays disproportionately much for the R&D portion of the cost, though.