alt Hacker News> It's 350M fairly wealthy people under mostly the same tech restrictions
and, on a case-by-case basis, those people are generally happy to adopt other states' standards in the name of convenience and efficiency (California notwithstanding). Look at E-ZPass/I-Pass as a great example of harmonization across states.
It's funny. Ask any Illinoisan how they feel about adopting Ohio's policies and they'd bristle. But say "hey we're gonna make your highway transponder work in every state east of the Rockies" and they're all for it.
I have to wonder if Europe has the same thing going on.
Your example of adoption is interesting. I think California has actually influenced other states on efficiency. I wanted to say disproportionately, but perhaps in exact accordance with their economic and political power.
I don't know the details well enough, but I do know that there is an effective anti-fedaralist force in the US wherever federal funding is concerned, as it comes with rules conditions (rules) attached. I would be interested to what extent this acts as a bias toward cooperation in the case of ez pass, given the interstate system.