What per capita figures actually tell you
Launch library · evergreen read
A per capita figure divides a total by the number of people it applies to, turning an absolute number into something comparable across places of very different sizes. A country with more total cases of something is not necessarily doing worse than a smaller country with fewer, once population is accounted for.
The distinction becomes important in almost any cross-country or cross-city comparison: total figures tend to favour the interpretation that bigger places are doing worse, simply because they have more people in them, while per capita figures correct for that and often tell a very different story once population is properly taken into account.
It is not a perfect measure either, since it can flatten out meaningful differences in age structure, density, or circumstance between two places being compared. Still, asking whether a figure is a total or a rate per person is one of the fastest ways to sense-check a comparison before accepting it at face value.