Stag Hunt, Assurance Problem
The Block Cleanup Pledge
The Block Cleanup Pledge is a Stag Hunt and Assurance Problem scenario. The core lesson: A group project that only works if nearly everyone shows up depends on trust, not on incentives to cheat. Your block wants to clear a long-neglected shared alley. It takes at least a dozen people working the same Saturday morning. DecisionPlay maps the players, payoffs, and equilibrium dynamics that shape how this situation typically resolves.
The situation
Your block wants to clear a long-neglected shared alley. It takes at least a dozen people working the same Saturday morning. If only a few show up, the effort is wasted and the alley stays as it is. A sign-up sheet has been circulating for two weeks.
Background
A Stag Hunt has two stable outcomes. If everyone commits, the group gets a good result. If people expect others to stay home, the safe choice is to skip it too. Nobody gains by cheating, because showing up when few others do is worse than staying home. The obstacle is doubt, so the key task is making commitments visible and credible.
What this reveals
Trust is the whole mechanism
Stag Hunts fail without anyone cheating. People skip because they fear that others will skip. The fix is to lower the risk of going first and make commitments public, so that everyone can see that the group is likely to show.
How to counter it: Use conditional pledges, visible sign-ups, and small early wins. Reduce what it costs to be the first person to commit.
A question to sit with
What group effort have you stayed out of because you doubted that others would come? What would have made you sure?
Frequently asked questions
- What game theory concept does The Block Cleanup Pledge illustrate?
- The Block Cleanup Pledge illustrates Stag Hunt, Assurance Problem. A group project that only works if nearly everyone shows up depends on trust, not on incentives to cheat.
- What is the situation in The Block Cleanup Pledge?
- Your block wants to clear a long-neglected shared alley. It takes at least a dozen people working the same Saturday morning. If only a few show up, the effort is wasted and the alley stays as it is.
- What does The Block Cleanup Pledge reveal about how people decide?
- Trust is the whole mechanism. Stag Hunts fail without anyone cheating. People skip because they fear that others will skip. The fix is to lower the risk of going first and make commitments public, so that everyone can see that the group is likely to show.
- How do you avoid the trap in The Block Cleanup Pledge?
- Use conditional pledges, visible sign-ups, and small early wins. Reduce what it costs to be the first person to commit.
- What is the research behind The Block Cleanup Pledge?
- A Stag Hunt has two stable outcomes. If everyone commits, the group gets a good result. If people expect others to stay home, the safe choice is to skip it too.
- How long does The Block Cleanup Pledge take to play?
- About 8 min, at advanced difficulty, across 3 decision points. It runs in your browser with no account and no sign-in.
Keep exploring
More Everyday Standoffs scenarios, or browse all scenarios. New to this? Start with how DecisionPlay works or the game theory glossary.
Topics: everyday, stag-hunt, community, trust, assurance, season-6