Ask HN: Data / articles explaining Scandinavian socialism?

Do you have good data, charts, or intelligent articles that would help one understand Scandinavian socialism, particularly as it relates to the US?

First: this is not an invitation to an "I think" flame war. People on both sides are very passionate, and HN is the wrong venue for such discussions.

But HN may well be a good venue to find out how to easily learn about the subject. That's what I'm after.

Background: Scandinavia is often touted as a near utopia of social welfare services that the US should emulate. But that seems simplistic to me.

I'd love to learn what works in scandinavia. What doesn't work. Why might it work in scandinavia and why might it work or not work in the US. Life is tradeoffs, and I'd love to learn what those tradeoffs might be.

I'm looking for intelligent articles that get to the heart of it. Or good charts or data.

Any insights anyone?