Well yes, but how suitable is GDP/capita as a measure? Pretty good indicator given its simplicity. https://en.m.wikipedia.org/wiki/List_of_countries_by_GDP_(

Well yes, but how suitable is GDP/capita as a measure? Pretty good indicator given its simplicity. https://en.m.wikipedia.org/wiki/List_of_countries_by_GDP_(PPP)_per_capita https://en.m.wikipedia.org/wiki/List_of_countries_by_GDP_(PP... Is there a metric as simple as that that correlates as well with quality of living for a majority of the population?