From what little experience I have with working with companies in other countries it does seem like the US is really different than many other developed countri

From what little experience I have with working with companies in other countries it does seem like the US is really different than many other developed countries. It is relatively easy to enforce contracts in the US. Public companies are very transparent. There is a low level of corruption. Rules about moving money around, investing, and taxes are relatively simple. Hiring people (particularly in any variety of skills) and letting people go when you need to is possible. Lots of other countries have great economies and different advantages over the US. But that the set of advantages above isn't more widely replicated points to more than just first mover advantage.