Productivity and output have grown rapidly over many years
For example, between 1930 and 2000 U.S. agricultural output quadrupled, while USDA index of aggregate inputs (land, labour, capital and other material inputs) remained essentially unchanged.

  • The percentage of U.S. disposable income spent on food prepared at home decreased from 22 percent in 1950 to 7 percent by the end of the century.
  • US grain production has doubled in last 15 years (with overproduction leading to biofuels subsidies).


Immediately related elementsHow this works
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Agriculture, food and land use »Agriculture, food and land use
Improving Diet and Nutrition »Improving Diet and Nutrition
1. Challenges for global diet & nutrition »1. Challenges for global diet & nutrition
Existing systems are already under severe pressure »Existing systems are already under severe pressure
World food system has proved remarkably resilient so far »World food system has proved remarkably resilient so far
Productivity and output have grown rapidly over many years
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