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Proceedings of the National Academy of Sciences· 2014Q1

The second demographic transition: A concise overview of its development

Ronny Lesthaeghe

Short summary

The Second Demographic Transition (SDT) theory, developed since 1986, explains demographic shifts beyond the First Demographic Transition (FDT) by incorporating societal changes and cultural values, with recent data revealing three distinct SDT patterns influenced by historical kinship systems.

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Field: Demography

DemographySocial Sciences