Cooperative Fishing Wins: How Penalties and Pricing Boost Fishers’ Payoffs

A fresh game‑theoretic study looks at marketing groups in fisheries. It shifts focus from resource battles to conflicts that happen when fish are sold. The researchers blend three models. First, a classic fishing effort model uses logistic population dynamics. Second, a game‑theoretic clash pits the cooperative against its members. Third, a Cournot‑type oligopoly model sets market price based on total supply. Fishers who sell outside the group face penalties.

Inside this complex framework, the team builds a cooperative outcome called the near‑perfect solution. They compare it with the earlier non‑cooperative result known as the appealing solution. The comparison runs over repeated games that include real fishing effort changes. Findings show the cooperative approach delivers larger total gains when at least one member fishes, one member cheats, and a specific price rule is met. In other words, the co‑op works best under those mixed conditions.

Increasing the punishment factor helps keep members honest, nudging them to contribute their catch. Raising fishing effort boosts catches without draining stocks, but tougher penalties are needed to stop fishers from diverting fish to the open market. The study highlights how the right mix of pricing, penalties, and effort can make a fishing cooperative more profitable and stable.

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