[sokoloff]

I’m personally based in the US, but we have local entities in several EU countries and a “mobility team” (part of HR) that does the research for us, using a mix of in-house expertise and outside counsel. We have a list of countries for which we’ve already done the research (for our own facts and circumstances) to know whether and how we could employ people there and if I want to hire someone in a new place not on the list, they research it and make recommendations.

It’s not something easily amenable to a definitive and simple chart (as I understand it, but that’s coming from the experts we pay a lot to to answer these questions).