It's the purchasing power of $1.25/day, rather than the absolute value. https://en.wikipedia.org/wiki/Purchasing_power_parity https://en.wikipedia.org/wiki/Pur

It's the purchasing power of $1.25/day, rather than the absolute value. https://en.wikipedia.org/wiki/Purchasing_power_parity https://en.wikipedia.org/wiki/Purchasing_power_parity