Entrenched reputation mechanisms give dominant fairs a durable competitive moat.

Evidence

Other, smaller fairs that tried to compete with the Champagne Fairs on an equal footing would have to contend with merchants who participated only long enough to make a profitable cheating transaction and then return to the Champagne Fairs where their participation rights were intact. — PAUL R. MILGRO, PAUL R. MILGRO - THE ROLE OF…, 171

Categorization

• XREF: Connects to the reader’s knowledge of network effects and lock-in in software platform economics — dominant platforms deter competitors precisely because users can defect and return without losing standing. — connects to: Controlled entry to the Champagne Fairs substituted for direct credit checks and enforced reputation.; Trustworthiness begets trust via reputation and repeated dealings — Russell Hardin, Trust and Trustworthiness, 793; Reputation means changing beliefs, not merely incentive-compatible behavior (+4 more)
• CANDY: A compact, memorable claim: the Champagne Fairs dominated for a century-plus not on prices or goods but because cheaters couldn’t be punished anywhere else.

Related

• Controlled entry to the Champagne Fairs substituted for direct credit checks and enforced reputation. (similarity 0.92)
• Entry control at fairs substituted for reputational screening of trade partners (similarity 0.82)
• Group reputation for fair dealing drives a trading bourse’s economic viability. (similarity 0.80)

Broader Connections

• Trustworthiness begets trust via reputation and repeated dealings #expands (0.75) — Russell Hardin, Trust and Trustworthiness, 793
• Reputation means changing beliefs, not merely incentive-compatible behavior #expands (0.75)
• Institutions mainly restore information that decentralized reputation systems require #qualifies (0.75)
• Reputation is a public inference of disposition from background and behavior #expands (0.72)