© Getty Images One of the greatest labor force changes of the 20th century was the movement of workers out of farming. In 1900, more than two out of five workers were in agriculture. Now it is less than two workers out of every 100.
It’s not that people stopped eating. Rather, farm machinery and innovation increased the amount of food that could be produced per farm worker by more than a factor of 10 . Food got cheaper and that got people to buy more food, but not 10 times as much. The end result has been fewer jobs […]
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