Home▸Society & Economics▸Demographic Transition: Population Pyramid and Birth-Death Curves (2D)

👥 Demographic Transition: Population Pyramid and Birth-Death Curves (2D)

Age-structured cohort model of the demographic transition. Watch a single-year population pyramid and the birth-rate, death-rate and population curves move through Stages 1 to 5 as mortality and then fertility fall, with migration and epidemic shocks on top.

Society & Economics2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

Details

CategorySociety & Economics

RenderingCanvas 2D

DifficultyModerate

Target FPS60

ControlsClick or shift-click any age band of the pyramid to add or remove migrants; sliders for years to modernise, fertility lag, initial and final fertility, net migration and speed; six scenario presets; play, pause, +1 year, +10 years, reset and an epidemic-shock button.

demographydemographic transitionpopulation pyramidfertilitylife expectancymigration

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⚙ Under the hood

demographydemographic transitionpopulation pyramidfertilitylife expectancymigration

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install