CONCEPT
Keynes's Fifteen-Hour Prediction
John Maynard Keynes's 1930 forecast in Economic Possibilities for Our Grandchildren that productivity growth would deliver a fifteen-hour workweek by 2030 — the foundational broken promise of industrial-era economics.
In 1930, Keynes published a brief essay predicting that within a hundred years, the "economic problem" of scarcity would be solved so thoroughly that his grandchildren's generation would work approximately fifteen hours per week, and would struggle with the challenge of what to do with all their free time. The prediction was reasonable given the productivity trends Keynes observed; it has proven half-right in that productivity arrived as forecast, and fully wrong in that leisure did not. The fifteen-hour week has become the foundational reference point for every subsequent analysis of why technological productivity fails to deliver reduced work — the most elegant statement of the prediction that needs to be explained, and the standard against which every subsequent institutional failure is measured.
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Keynes's essay emerged from his broader work on macroeconomic theory and his personal optimism about technological progress. He observed that output per worker-hour had risen dramatically since the industrial revolution and was continuing