A Cooperation Mechanism Proposed

The Prompt

Propose a game-theoretic mechanism — a treaty structure, a carbon-pricing scheme, a conditional commitment device, or a club-good arrangement — designed to improve cooperation among sovereign nations on climate change. Specify the players, the payoff structure, and the enforcement mechanism (or explain why enforcement is absent). Analyse your mechanism against the free-rider problem: under what conditions would a rational nation join? Compare your proposal with at least one existing mechanism (the Paris Agreement's NDC framework, Nordhaus's climate clubs, or Barrett's treaty model).

Completion Criteria

A written specification of the mechanism, an analysis of its susceptibility to free-riding, a comparison with one existing proposal, and at least two citations.

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