Breaking down a country’s economic situation to divide the rich from the poor is a complicated task, says The Economist.
Factors like GDP are affected by population, as more people usually means more output, but adjusting for population is not enough to ensure accuracy.
Dollar income per person does not account for differences in prices between countries (a Big Mac, for example, will set you back more in some places than in others, even after converting into dollars).
Nor does it account for productivity (overall output per hour worked).
To get a fuller picture, The Economist therefore ranks countries by three measures: dollar income per person, income adjusted for local prices (known as purchasing-power parity, or ppp) and income per hour worked. See where each Bangladesh ranks below.
Take America first. Its GDP has been the largest at market exchange rates for over a…
