Not that I want to riff on the "in mice" joke, but looking at figure 2, it seems like the title should read "systematically underrepresent rural population _in

Not that I want to riff on the "in mice" joke, but looking at figure 2, it seems like the title should read "systematically underrepresent rural population _in China_", right ? (Some other countries are included, but it seems like China, or at least south east Asia, provides the bulk of the data.) Which is not nothing - if China's population is underestimated, even by a small amount, that means a lot. But there might be purely historical reason ("ghost kids" unreported because of the "one child policy" come to mind) that would not apply to, say, the US census, or the size of constituencies in Europe that would undermine right wing parties.