We do get a primary city effect at the state level in many cases. At that point it can be a bit like jumping from Paris to Berlin. Perfectly easy to do for EU citizens assuming you can handle the life upheaval and expense. At least the US doesn't have the language barriers to deal with.
> a bit like jumping from Paris to Berlin. Perfectly easy to do for EU citizens assuming you can handle the life upheaval and expense
This is a MASSIVE assumption to have. The language barrier you brought up has a massive impact for example, along with other smaller intricacies (eg. Taxes, Drivers License, Immigration depending on your nationality, bureaucratic experience, etc). Moving from Paris to Berlin or Oulu to Varna isn't some walk in the park.
And several states don't have primary city effect either (eg. CA, TX, OH, FL, NC), and bureaucratic norms in most cases within the 50 states are normalized for individual cases.
