Accrding to the wikipedia article you referenced, the OECD data is already adjusted for purchasing power parity (PPP), which is a cost of living adjustment. [0]

Accrding to the wikipedia article you referenced, the OECD data is already adjusted for purchasing power parity (PPP), which is a cost of living adjustment. [0] [0] https://en.wikipedia.org/wiki/Disposable_household_and_per_capita_income#Disposable_income_per_capita_(OECD) https://en.wikipedia.org/wiki/Disposable_household_and_per_c...