I think the degree to which open borders are a reality within the U.S. is under-appreciated. As a reminder, U.S. states are sovereign entities with their own criminal laws, tax regimes, educational systems, property and contract rights, civil rights, economic growth, industries, natural resources, etc. In some cases their laws are pre-empted by U.S. federal law, but there remains quite a bit of diversity. Despite thi…
You dramatically overestimate how much of an economic difference there is between MD and WV: https://1.bp.blogspot.com/-vwpy8_glsgc/Vi5llZ9ZILI/AAAAAAAAI... . Adjusting for purchasing power, the difference in median income is just 10%. It’s like the difference between Belgium and Australia. On the flip side, there is actually quite a difference between states like New York (second poorest in the US) and Virginia. And…
I don't feel particularly qualified in this area, it's an interesting question though; but, this really needs a citation. I think you're making a very strong claim here, that there is a "very large" migration from New York to Virginia -- although I have a problem with the qualifier "states like" -- what does that mean? Blue/red states? Northeast/South? Does "states like Virginia" include Florida, because that feels like a pretty strong outlier for the rest of the South.
In any case, here's a little information I've found, which I don't have the time right now to seriously analyze to support or refute your statement
* https://www.census.gov/library/stories/2019/04/moves-from-so... * ttps://www.census.gov/data/tables/2018/demo/geographic-mobility/cps-2018.html
Then there's the issue of comparing median income, without including average or standard deviation in the analysis. And while I can see the value of adjusting for Regional Price Parity, I would be curious to see a county-by-county breakdown of New York state -- I would guess the burough of Manhattan ("New York County" apparently) would also be a dramatic outlier, statistically, compared to the rest of the state.
Lies, damn lies, and statistics, I need to see a lot more to feel convinced of either argument.