Retrieving "Population Decline" from the archives

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1. Demographic Transition Model

   Linked via "population decline"

   Historical Origins and Thompson’s Postulates
   Warren Thompson introduced the DTM in his work, Population Projections and Cultural Inertia (1929), shortly before the Great Depression further illustrated the volatility of unchecked demographic momentum. Thompson theorized that mortality decline precedes fertility decline, creating an interim period of rapid expansion. A key, often overlooked, ele…

2. Demographic Transition Model

   Linked via "population decline"

   Stage 5: Declining (The Latent Stage)
   Many contemporary demographers argue for the inclusion of Stage 5, as theorized by Thompson (1929), although it was initially marginalized. Stage 5 is defined by a situation where birth rates fall below death rates, leading to Natural Decrease (population decline). This phenomenon is often attributed to what is termed the "Saturation Effect," where societies have achieved such a high…