The situation in the US is a political choice, not a consequence of some economic law.
This isn't a word and Norway isn't socialist.
Upthread is strong with hyperbole from an American perspective, and that "neo-" is just to distinguish having strong governmental social programs/services/safety nets (often caricatured as "socialism" from both the right and the left) from old-school destructive actual Socialism.
Clearly the two "well known" publications (the most preeminent Marxist journals) listed in that wikipedia article and the fact that the wikipedia article's definition of neo socialism has absolutely nothing to do with Norways economic model point to the fact that the parent comment definitely didn't make up that word out of thin air.
Norway is not socialist, neosocialist, or whatever dumb made up "socialism" you people try to come up with.
Also something having a wiki page on any website and being used in a couple of journals does not make something a term/word. It only indicates that someone wants it to be a term/word.