Growth Systems
Two Empty Rooms
Solve the chicken-and-egg problem: buyers churn when supply is thin, and suppliers churn when they don't earn. Learn to sequence subsidies across sides and to see fill rate — not GMV — as the leading indicator.
You run a local marketplace for handmade furniture. Buyers show up, find three dusty listings, and leave. Makers list once, sell nothing, and quit. Two empty rooms, each waiting for the other to fill.
Each month you split budget between supply incentives (signing bonuses for makers) and demand ads, and you set the take rate. Suppliers stay when they earn; buyers stay when searches turn into orders. Get monthly GMV to $60k before the cash — or your supply side — runs out.
14 months on the clock. Initial conditions are randomized.