Change the rule and remove the funding bottleneck
Choose an example and change payer radius h. At h = 0, an interface may charge only its two neighbouring parcels; each step reaches one parcel farther in both directions.
The group has enough money overall, but the middle interface cannot reach the owners who have it.
Click an interface to inspect its eligible payers. A red bracket identifies a block that cannot be funded; a green bracket shows the tightest block when the rule works.
What the example shows
The money exists, but this rule cannot reach it.
At h = 0, the middle interface can charge only parcels 2 and 3. They have no available margin against a cost of 2.
Financing and commitment are separate. Even when every interface can be funded, no-build remains an equilibrium. Eliminating it requires a mandate, binding collective contract, or non-performance assessment that changes the payoff from staying out.
Change the numbersEdit parcel margins, interface costs, or external value
Parcels and interfaces
A parcel's margin is its value from completion minus the cost of its own segment.
Value beyond the owners
External value affects whether completion is worthwhile socially. It never changes the owners' private financing test or h*.