The Roman grain dole
About this model
Gaius Gracchus, the annona, 123 BCE–3rd century CE. Provinces send grain to Rome as tax; the state hands free grain to citizens; free grain draws migrants to the city and undercuts Italian farmers' sales. A teaching model: it keeps only this core loop and leaves out everything else a real economy has.
"The Roman grain dole" is a public Machinations diagram shared in the Community by Machinations, with 32 components.
It was created in October 2026 and last edited in November 2026.
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