A religious organization subsumes state roles, providing social services as a way to reinforce social cohesion as well as the power structure in the religious hierarchy. The authorities dictate everything from clothing style to "volunteer" effort. Young men are exploited for their energy and lack of common sense to expand borders.
Guys, am I talking about the Latter-Day Saints or ISIS?
I'll bet you a beer that Megan McArdle (author of this article) was born and raised in the Mormon religion. How else do you explain the leap from social mobility to social services to yay white Mormons?
This isn't the first piece she's written cheerleading the LDS homeland:
https://www.bloomberg.com/view/articles/2015-05-15/verily-i-...
https://www.bloomberg.com/view/articles/2015-11-08/mormons-p...
Now, I myself was born and raised in the Mormon religion. My view is that social mobility is high in Utah due to high economic growth which is fantastic compared to the rest of red-state America, and definitely due to Mormon influence, but not for the reasons Megan would have you believe:
Mormons breed early and often. Their workforce is the youngest in the nation and no surprise, this is a recipe for economic growth. They're having a baby boom in Utah all the time.
If government has done anything to help, they've carved more than their fare share out of the federal budget to support jobs in the state. Major exports include rocket parts and spying on you.
https://en.wikipedia.org/wiki/Utah_Data_Center
https://en.wikipedia.org/wiki/Thiokol
Other than that, Utah's major industry seems to be pyramid schemes:
https://en.wikipedia.org/wiki/Nu_Skin_Enterprises
https://www.quora.com/Why-are-multi-level-marketing-companie...
Just google Utah MLM, theirs too much good stuff.
The reason I bring it up is that economic growth through high fertility is very much a pyramid scheme. At some point they will run out of room in the desert and then they will have to grapple with caring for an aging population like other formerly frothy reproduction based economies (Japan, China, most of the US).