Metanorms
A metanorm is the enforcement of enforcement — punishing not just defectors, but also those who fail to punish defectors. Introduced by robert-axelrod in his 1986 model of norms. 1
How Metanorms Work
In Axelrod’s evolutionary simulation:
- Agents can defect (high boldness) or comply (low boldness)
- Agents who observe defection can punish (high vengefulness) or not (low vengefulness)
- Without metanorms: Vengefulness decays because punishing is costly. As vengefulness drops, boldness rises. The norm collapses.
- With metanorms: Agents punish non-punishers. This creates a self-reinforcing cycle: vengefulness rises to high levels, boldness collapses, and a stable norm emerges.
Strategic Implications
The metanorm mechanism explains why some norm systems are self-sustaining while others require constant external enforcement:
- “See something, say something” security cultures are far more robust when reporting is itself socially enforced, not just encouraged.
- Organizational cultures where whistle-blowing is protected and rewarded outperform those relying on individual conscience alone.
- Online communities with active moderation of non-moderators (meta-moderation, as on Slashdot) tend to maintain quality better than those with only direct moderation.
Cross-Domain Connections
- security: Threat reporting cultures, peer enforcement of security hygiene
- organizational-behavior: Corporate culture durability, “tone from the top”
- blockchain: Slashing mechanisms in Proof-of-Stake systems are institutionalized metanorms