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Economic models you can actually see move. Every curve is computed and every shift is verified. Built for students who want intuition, not just diagrams.

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Educational purposes only, not financial advice. Graphl teaches which economic framework applies and how its mechanism works; it does not solve assessment problems for you.

  1. Library
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  3. Malthusian Growth Model
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  5. Scenario

Advanced Macro & Growth · intermediate

A plague strikes

What moves on the Malthusian Growth Model diagram

  • Subsistence c·Nshifts up (small)

With land fixed, a smaller population raises output per person, the Malthusian logic behind post-plague wage booms.

Watch it animateQuiz yourself on Malthusian Growth Model

Step by step

  1. 1

    The economy is trapped at subsistence.

  2. 2

    A plague kills a third of the population, survivors farm the BEST land with more land each.

  3. 3

    Income per head RISES. The Black Death's grim lesson: in a Malthusian world, fewer people means richer people… until population recovers.

Where this shows up

Examiners ask this as: black death wages, plague population income.

Other scenarios on Malthusian Growth Model

An agricultural revolution →