Malthusian-Ricardian theory predicted that an increasing population would result in a specific progression of effects. Rents would rise first, with grain prices lagging behind rents, the price of industrial goods lagging behind grain prices, and workers' wages bringing up the rear. The evidence showed that this was precisely what happened {until the whole system was dramatically changed in the nineteenth century}.
( Peter Turchin )
[ Secular Cycles ]
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