Pinochet's economic policy is vastly overrated

> Uruguay, despite having a lower GDP per capita , has a higher mean income than Chile at every quintile of the income distribution, except the top. I suspect something similar prevails for Argentina.

Is there a simple measure of this concept? Like if you took two countries, and were to born into a random family in one of them, at your choice, which one would score higher and be the right one to pick to maximise your chances?