Trust is rational action taken despite uncontrolled exposure to loss

Evidence

Trusting behaviour consists in action that (1) increases one’s vulnerability to another whose behaviour is not under one’s control, and (2) takes place in a situation where the penalty suffered if the trust is abused would lead one to regret the action. In economic terms this implies that the action would not be taken in the absence of trust because the expected net benefit is lower than if some alternative is chosen. In short, there is no best strategy independent of trust. — Diego Gambetta, Trust - Making and Breaking Cooperative…, 2503

Categorization

Category: Definitional Content

• DEFINE: Gives a precise, economic definition of trust: vulnerability-increasing action where abuse would be regretted. This is the analytical anchor for the reader’s whole synthesis.
• XREF: Maps cleanly onto the reader’s library: this is essentially why observability constraints (Hardin) and familiarity (Luhmann) underwrite ‘trust’ — the action is only taken when exposure is acceptable.
• DEEPTHINKING: The closing line — ‘there is no best strategy independent of trust’ — reframes rational choice: trust is not a defeasible softener but constitutive of rational action itself when vulnerability is unavoidable.

Related

• Trust only matters when one’s best strategy depends on another’s actions (similarity 0.93)
• Trust is not chosen, a gamble, or an investment; only actions are (similarity 0.86)
• Trust is a policy adopted precisely where knowledge of future action is unavailable (similarity 0.86)
• Trust rests on expectations about others’ actions bearing identifiable risk (similarity 0.86)
• Trust operates where parties are both free and constrained (similarity 0.86)
• Trust means predicating one’s actions on others’ risky actions (similarity 0.86)
• Withholding trust feeds a self-reinforcing spiral of lost rational capacity. (similarity 0.86)
• Trust is a policy for coping with uncertainty about others’ freedom. (similarity 0.85)
• Trust is a rational policy for conditions where knowledge is unavailable (similarity 0.85)
• Departures from unbounded rationality significantly help maintain trust. (similarity 0.85)
• Trusting is only knowledge; acting on trust is what carries risk (similarity 0.85)
• Trust is a fragile coping device for ignorance about others’ future behavior (similarity 0.85)
• Trust requires genuine choice, occupying the space between determinism and indeterminacy (similarity 0.84)
• Trust is a degree of expected probability, not a separate decision layered onto risk. (similarity 0.84)
• Trust requires both freedom to betray and constraint making the relationship worthwhile. (similarity 0.84)