What I don't get is: why would they pay more for someone from San Francisco? I'd expect the incentive to be to indeed pay the same for the same work, but that pay would be the lowest they can get away with. (i.e. I wouldn't expect that to lead to Silicon Valley salaries all over the world.)
Unless it's not actually the same work, and location affects work. It does at least affect gross pay in any case, I suppose.
Unless it's not actually the same work, and location affects work. It does at least affect gross pay in any case, I suppose.