I think most wealthier countries outsource to other countries in the same timezone, but prefer local for legal purposes. American cities can be bloody expensive

I think most wealthier countries outsource to other countries in the same timezone, but prefer local for legal purposes. American cities can be bloody expensive, and the more out of town areas can be significantly cheaper to live in, even compared to South America and developing countries. EU's salary ranges aren't so far; they can hire from the cheaper EU countries as well. Commuting between EU countries is also relatively easy when necessary. Australia has a large pay gap and probably hires outside the country a lot more compared to other countries in the world. But they're a much smaller tech employer than the US.