Abstract
AN interesting paper by Prof. Axel F. Enstrom, Director of the Academy of Engineering Science, Stockholm, under the title “On Periodicities. in Climatic and Economic Phenomena and their Covariation,” deals with the important question of extrapolating past climatic and economic data in order to predict future conditions. In his introduction the author claims that “an investigation along these lines of the coal prices and the general prices” published by him in 1913 has been justified by the prediction of an economic boom about 1918 and a depression with the bottom about 1922. But it is doubtful whether this success really affords a corroboration, for these events must have been mainly controlled by the termination of the War, and were forecasted by methods independent of such an upheaval.
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Periodicities and Predictions. Nature 115, 926 (1925). https://doi.org/10.1038/115926a0
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DOI: https://doi.org/10.1038/115926a0