Cognitive Scaffold

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MENTAL MODEL · M6452

Buck Passing

Buck Passing
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Updated 2026-08-08

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INTRODUCTION

English translation pending.

CORE DEFINITION

Buck passing describes the tendency of individuals or states to withhold effort because they expect someone else to carry the burden. In groups it appears as the bystander effect, where the presence of others lowers each person's felt responsibility and collective inaction follows. In international politics the same logic operates between allies, each hoping another will bear the cost of balancing a common threat. The result is a failure of collective action that leaves the threat unopposed.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Spot the dilution: check whether responsibility is shared so thinly that nobody feels ownership. - Name the free rider: identify who benefits from action without paying its cost. - Bind the group: use commitments, treaties or joint incentives to make sharing mandatory.

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Anchor fast decisions

When a threat is shared, each party compares the cost of acting against the chance that someone else will act first. Because the benefit of the threat being checked is shared by everyone while the cost falls on whoever moves, each party prefers to wait. Waiting is individually rational but collectively disastrous, so the alliance never forms and the aggressor can pick off members one by one. The deeper cause is that responsibility has been externalised rather than assigned.

MINIMUM ACTION

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Source support: Explicit

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