Social Insurance Basics — Risk Pool

Three-round civic-economics simulation: 100 villagers in Costaria face four life risks (illness, unemployment, old age, disability). Round 1 — discover that no one can self-insure. Round 2 — pool the risk and watch the law of large numbers tame catastrophic tail risk. Round 3 — design the national system through four classic policy choices (mandate, public/private, PAYG/funded, universal/means-tested) and see which real country your design matches. HS Years 11–12 / IB Economics 2.7 and 2.10.