The impact of government subsidies on microplastic pollution control in mariculture: an evolutionary game theory analysis in Qingdao, China

Mariculture constitutes the primary origin of microplastic pollution, necessitating immediate action to address microplastic pollution by focusing on both the supply and demand aspects of fishing gear. Based on the cooperative management model of mariculture microplastic pollution, this paper develo...

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Main Authors: Haiming Song, Xinting Wang, Xiaomeng Huan, Lin Yang
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Marine Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmars.2024.1510364/full
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author Haiming Song
Xinting Wang
Xiaomeng Huan
Lin Yang
author_facet Haiming Song
Xinting Wang
Xiaomeng Huan
Lin Yang
author_sort Haiming Song
collection DOAJ
description Mariculture constitutes the primary origin of microplastic pollution, necessitating immediate action to address microplastic pollution by focusing on both the supply and demand aspects of fishing gear. Based on the cooperative management model of mariculture microplastic pollution, this paper develops an evolutionary game model that incorporates the interactions among fishing gear enterprises, fishermen, and the government. It then proceeds to examine the government’s strategy for managing mariculture microplastic pollution through game theory and simulation analysis. The main findings obtained are as follows. (1) The management of mariculture microplastic pollution can be improved on both the supply chain and market aspects by implementing subsidies. The likelihood of receiving government subsidies boosts the production of environmentally-friendly fishing gear by fishing gear enterprises and the purchase of such gear by fishermen. (2) Based on the cost-benefit variations for fishing gear enterprises, fishermen, and the government, the evolutionary game model reaches distinct equilibrium states, leading to corresponding adjustments in the optimal government subsidy strategy. (3) While there are some positive effects of subsidies, increasing government subsidies does not necessarily lead to better outcomes. As the total amount of subsidies increases, the best practice for governments would be to phase out subsidies for environmentally-friendly fishing gear. Accordingly, the government should build a multi-subject collaborative governance model, reasonably control subsidies amount, prevent the adverse consequences of excessive subsidies, and optimize the structure of subsidy recipients.
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issn 2296-7745
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publishDate 2025-01-01
publisher Frontiers Media S.A.
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series Frontiers in Marine Science
spelling doaj-art-ddd82f09c79746aba52325092b9bb2a82025-01-20T05:23:36ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452025-01-011110.3389/fmars.2024.15103641510364The impact of government subsidies on microplastic pollution control in mariculture: an evolutionary game theory analysis in Qingdao, ChinaHaiming SongXinting WangXiaomeng HuanLin YangMariculture constitutes the primary origin of microplastic pollution, necessitating immediate action to address microplastic pollution by focusing on both the supply and demand aspects of fishing gear. Based on the cooperative management model of mariculture microplastic pollution, this paper develops an evolutionary game model that incorporates the interactions among fishing gear enterprises, fishermen, and the government. It then proceeds to examine the government’s strategy for managing mariculture microplastic pollution through game theory and simulation analysis. The main findings obtained are as follows. (1) The management of mariculture microplastic pollution can be improved on both the supply chain and market aspects by implementing subsidies. The likelihood of receiving government subsidies boosts the production of environmentally-friendly fishing gear by fishing gear enterprises and the purchase of such gear by fishermen. (2) Based on the cost-benefit variations for fishing gear enterprises, fishermen, and the government, the evolutionary game model reaches distinct equilibrium states, leading to corresponding adjustments in the optimal government subsidy strategy. (3) While there are some positive effects of subsidies, increasing government subsidies does not necessarily lead to better outcomes. As the total amount of subsidies increases, the best practice for governments would be to phase out subsidies for environmentally-friendly fishing gear. Accordingly, the government should build a multi-subject collaborative governance model, reasonably control subsidies amount, prevent the adverse consequences of excessive subsidies, and optimize the structure of subsidy recipients.https://www.frontiersin.org/articles/10.3389/fmars.2024.1510364/fullmariculturemicroplasticsgovernment regulatory strategyevolutionary gamenumerical simulation
spellingShingle Haiming Song
Xinting Wang
Xiaomeng Huan
Lin Yang
The impact of government subsidies on microplastic pollution control in mariculture: an evolutionary game theory analysis in Qingdao, China
Frontiers in Marine Science
mariculture
microplastics
government regulatory strategy
evolutionary game
numerical simulation
title The impact of government subsidies on microplastic pollution control in mariculture: an evolutionary game theory analysis in Qingdao, China
title_full The impact of government subsidies on microplastic pollution control in mariculture: an evolutionary game theory analysis in Qingdao, China
title_fullStr The impact of government subsidies on microplastic pollution control in mariculture: an evolutionary game theory analysis in Qingdao, China
title_full_unstemmed The impact of government subsidies on microplastic pollution control in mariculture: an evolutionary game theory analysis in Qingdao, China
title_short The impact of government subsidies on microplastic pollution control in mariculture: an evolutionary game theory analysis in Qingdao, China
title_sort impact of government subsidies on microplastic pollution control in mariculture an evolutionary game theory analysis in qingdao china
topic mariculture
microplastics
government regulatory strategy
evolutionary game
numerical simulation
url https://www.frontiersin.org/articles/10.3389/fmars.2024.1510364/full
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