I think 3dbrow's answer is the correct response, but would also like to say is that economics is much larger than just monetary and fiscal policies at a state level. This is one of the reasons that behavioral economics has flourished in recent years, to help push back against some of the underlying assumptions that don't match human nature.
It also looks like Norway's economy is also having some trouble during this time [0], like many other nations. And finally, we need to be careful comparing specific economies like Norway to other nation's economies. Each country's economy is different, and prescribing something that works in an oil-rich, northern European country will probably not work in other parts of the world.
[0]: https://www.ssb.no/en/nasjonalregnskap-og-konjunkturer/konju...
Interesting podcast about copying Nordic countries to make ourselves happier: https://freakonomics.com/podcast/season-10-episode-25/
