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MENTAL MODEL · M7372

Mutual Responsibility System

Mutual Responsibility System
DecidemediumGame Theory
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Updated 2026-08-10

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INTRODUCTION

English translation pending.

CORE DEFINITION

The Mutual Responsibility System was instituted under Shang Yang's reforms in the state of Qin, grouping households into units of five and ten in which a crime by one member brought punishment on the others unless they reported it. Its core proposition is that monitoring costs can be shifted onto the monitored population, turning every member into a watcher and making collusion self-defeating. The key qualifier is the trust cost: the system suppresses offenses by destroying the mutual confidence that holds communities together.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Monitoring shift: design a mechanism where members watch each other rather than a central authority. - Reporting incentive: make reporting more attractive than staying silent for every one of the members. - Trust cost check: weigh the social damage the mechanism causes against the compliance it buys.

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Anchor fast decisions

Central monitoring is expensive because watchers must be paid and can be evaded. Making each member liable for others' conduct converts every participant into a monitor at no cost to the authority, and because reporting is the only way to avoid penalty, the prisoner's dilemma pushes members to inform. The result is distributed deterrence, purchased with the trust between members.

MINIMUM ACTION

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Source support: Explicit

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    zh.wikipedia.orghttps://zh.wikipedia.org/wiki/%E9%80%A3%E5%9D%90ZH · Explicit
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