The mafioso’s guarantee enables trust and exchange in markets otherwise paralyzed by lemons.
Evidence
The mafioso, by means which are left unclear but which presumably involve his reputation for toughness, seems capable of deterring the seller from handing over a ‘lemon’. Without that protection the coachman is truly at risk, for he is indeed, as it were, saddled with a bad horse. … More difficult to interpret is the fact that the seller too gives the mafioso a tip. This could suggest, in line with Dasgupta’s argument (this volume), that with respect to that particular transaction the protection the mafioso offers is really a public good which benefits both sides. If he did not act as guarantor the exchange would not take place at all, for the potential buyer would be deterred from entering the transaction for fear of getting a bad deal. The seller’s tip, in other words, might reflect the price he is prepared to pay to be trusted. — Diego Gambetta, Trust - Making and Breaking Cooperative…, 2239
Categorization
Category: Causal Relationships
- XREF: Directly evidences the reader’s core thesis: trust requires observable constraints on opportunism — here the mafioso’s coercive reputation provides observability in an asymmetric-information market, exactly Hardin’s point.
- DEFINE: Concretely operationalizes ‘trust as a positional good’ and the guarantee function against the Akerlof lemons problem.
Related
- Sellers pay to be trusted when no other signal vouches for them (similarity 0.85)
- Guarantors must keep trust scarce and attributable to themselves to stay in business (similarity 0.83)
- Expected cheating risk can collapse markets entirely under asymmetric information. (similarity 0.82)
- Intermediaries must attach trust to their own reputations, not create direct seller-buyer trust (similarity 0.82)
- A guarantor’s protection is a public good benefiting both parties to trade. (similarity 0.80)
- Selling guarantees rather than information is what produces mafioso behavior (similarity 0.80)
- Buying protection against oneself signals credibility and creates a new efficient equilibrium. (similarity 0.80)