Numerical analysis of an extended mean field game for harvesting common fishery resource

Yoshioka, Hidekazu; Tsujimura, Motoh; Yoshioka, Yumi

doi:10.1016/j.camwa.2024.04.003

Cited by 2 publications

(1 citation statement)

References 88 publications

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“…(3) Regarding game method application in fishery, Yoshioka et al mathematical game theory modeling of resource harvest during the fishing season and validation of the model based on 2023 Japanese sea bass data (Yoshioka et al, 2024). Lennox et al constructed an epidemiological model of sea lice on farms, used wrasse as a cleaner for farmed Atlantic salmon and wild sea trout, and calculated the effect of wrasse on sea lice, a zero-sum game was found to occur in this farming ecosystem (Lennox et al, 2022).…”

Section: Figurementioning

confidence: 99%

Can government subsidy promote the light-blue fishery upgrade to deep-blue fishery?

Zheng,

Zhang

2024

Front. Mar. Sci.

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IntroductionThe expansion of fishery development from offshore to deep-sea areas has become essential for countries to address environmental constraints and ensure food security. This study aims to establish a cooperative development model for deep-blue fishery involving the government, fishery enterprises, and consumers.MethodsWe constructed an evolutionary game and simulation model to analyze the government's deep-blue fishery subsidy strategy. The model considers the interactions between the government, fishery enterprises, and consumers, evaluating how different subsidy strategies influence the development of deep-blue fishery.ResultsOur results demonstrate that government subsidies can stimulate the growth of deep-blue fishery from both the demand and supply sides. Specifically, the likelihood of government subsidies positively affects fishery enterprises' engagement in deep-blue fishery development and consumers' willingness to purchase deep-blue fishery products. The evolutionary game system reaches different steady states based on the cost-benefit changes for the government, fishery enterprises, and consumers, leading to various optimal subsidy strategies.DiscussionThe findings indicate that the amount of government subsidy should be optimized rather than maximized, as excessive subsidies may not yield proportionate benefits. Additionally, subsidizing fishery enterprises proves to be more effective in promoting the development of deep-blue fishery compared to subsidizing consumers. These insights can guide policymakers in designing efficient subsidy strategies to foster sustainable deep-sea fishery development.

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Section: Figurementioning

confidence: 99%