What he won a Nobel for (https://www.nobelprize.org/prizes/economic-sciences/2008/krugman/facts/ https://www.nobelprize.org/prizes/economic-sciences/2008/kru...

What he won a Nobel for (https://www.nobelprize.org/prizes/economic-sciences/2008/krugman/facts/ https://www.nobelprize.org/prizes/economic-sciences/2008/kru...), and what he writes and speaks about in the non-academic realm, are very different. And I don't think the implied "successful people can't be outlandish" holds up, anyway :)