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Greg Clark: Genetics and Social Mobility — #14

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The Effects of the Industrial Revolution on Fertility

There's definitely a phase, a long phase leading up to the Industrial Revolution, where you've got super fecundity. And in population level, it's having big effects. Then there's a phase going from people born in the 1850s up until the 1920s when these elites have a very, very low fertility. And then actually in England, it's a little hard to tell now. It looks like it may have kind of equalized. But they're big enough effects that they would leave a trace in terms of the distribution of abilities and also the average level of abilities.

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