When you say apples and oil should. have the same price everywhere, this is ex-tranaportation expenses, yes?
You'd think so, but I don't think PPP accounts for that. It's basically just an upgrade over purely using exchange rates to make cost of living comparisons.
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PPP is not a bad way to adjust for comparisons.
There has to be a better way
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I agree. PPP is not perfect, but it makes crude comparisons better.
There are conceptually better ways, but they tend to require data that no one keeps in many of these places.
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