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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1972 Oct;69(10):3019–3023. doi: 10.1073/pnas.69.10.3019

A Manner of Characterizing the Development of Countries

Robert Herman 1,2,3, Elliott W Montroll 1,2,3
PMCID: PMC389698  PMID: 16592022

Abstract

An attempt is made to characterize the socio-economic state and the temporal evolution of countries by the use of labor force distribution data on a multidimensional phase plot so that the development of a country is represented by an evolutionary track of a phase point. The evolutionary tracks of several countries are examined, and the phase points of many countries are compared. Snowflake diagrams, which make easy comparison of the socio-economic character of various countries, have also been developed.

Keywords: logistic curves, socio-economic phase plots, “snowflakes”, economic development

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