Reputation systems need cheap information flow, not frequent repeated trade, to enforce honesty.

Evidence

We argue in section 2 that even if no pair of traders come together frequently, if each individual trades frequently enough within the community of traders, then transferable reputations for honesty can serve as an adequate bond for honest behavior if members of the trading community can be kept informed about each other’s past behavior. Well informed traders could boycott those who have violated community norms of honesty, if only they knew who the violators were. It is the costliness of generating and communicating information - rather than the infrequency of trade in any particular bilateral relationship - that, we argue, is the problem that the system of private enforcement was designed to overcome. — PAUL R. MILGRO, PAUL R. MILGRO - THE ROLE OF…, 13

Categorization

  • XREF: This is the core insight (Milgrom, North & Weingast) that maps directly onto the reader’s private-enforcement framework: the bottleneck is information cost, not match frequency. Connects to Schellingian commitment mechanics and the shift from informal to formal reputation institutions. — connects to: Bourses move reputational information as efficiently as goods — Lisa Bernestein, Opting out of the Legal System, 49; Dense-group conditions are needed to start but not to sustain reputation regimes. — Lisa Bernestein, Opting out of the Legal System, 179; Extralegal reputation-based contracting can work in large markets when information flows cheaply. — Lisa Bernestein, Opting out of the Legal System, 178 (+7 more)
  • SEED: An essay angle: the ‘infrastructure of reputation’ across eras — how information cheapening (guild rolls, credit bureaus, Yelp, blockchain attestations) always precedes market expansion.

Broader Connections