You would need a small nation state to run the experiment with its own currency and limited natural resources (as in, it can't just sell oil and distribute prof

You would need a small nation state to run the experiment with its own currency and limited natural resources (as in, it can't just sell oil and distribute profits like Alaska). It would also have to be very librial about borders and illegal immigrants to simulate the US. I would suggest the minimum size of this nation should be around 15+ million people.