Chart showing 80 year periodicity in scientific and technological development, and economic statistics showing long-term periodic 80 and 40 year trends of labor productivity and GDP growth. From my book on the cause of periodic economic depressions and the 80 year periodicity of scientific revolutions.
Statistics of U.S. labor productivity growth rates 1839-1979 are from Paul M. Romer, "Capital Accumulation in the Theory of Long-Run Growth," in Robert J. Barro, ed., MODERN BUSINESS CYCLE THEORY, Cambridge, 1989. p. 58.
Return to the introduction to the book:
Introduction to The Periodic Production of Rationalized Phenomena
and the Past
Periodic Depressions
For the abstract and more information about the book:
Abstract of The Periodic Production of Rationalized Phenomena and the Past
Periodic Depressions