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2026-09-11 21:20:07 UTC
in reply to

Daniel Lakeland on Nostr: The GDP/commodity data has a free scale parameter, so we made it so that US in 2000 ...

The GDP/commodity data has a free scale parameter, so we made it so that US in 2000 has value = 1, which means log(1) = 0.

You can think of our measure as "ability to buy commodities divided by the ability of US citizens in 2000 to buy the same commodities"

whereas the GDP PPP is based on something like US "constant dollars" in 2015 or something. Take PPP and divide by the US value in 2000 and you'd put it on same scale. It's just a constant vertical shift in the Log version though.