This is an inversion of the commonly held idea of progress, wherein societal development leads inexorably towards greater equality. Since the 1950s, economists have believed that in advanced economies, economic growth reduces the income disparity between rich and poor. Known as the Kuznets curve, after its Nobel Prize–winning inventor, this doctrine claims that economic inequality first increases as societies industrialise, but then decreases as mass education levels the playing field and results in wider political participation. And so it played out – at least in the West – for much of the
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