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November 12, 2025Frontiers in Marine ScienceOpen Access

Subsidy for input or purchase? Research on government subsidy strategies in land-sea relay aquaculture mode

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The research investigates government subsidy strategies in land-sea relay aquaculture to optimize decisions and enhance welfare.
Constructed a two-stage game-theoretic model of land-sea relay aquaculture.
Analyzed three scenarios: no government subsidy, input subsidy, and purchase subsidy.
Examined decision-making behaviors, profits, and social welfare in the supply chain.
Input and purchase subsidies incentivize farmers to enhance fry quality and increase supply.
Differentiated pricing impacts small and large-scale farmers, lowering prices for smaller entities.
The effectiveness of subsidy strategies is influenced by the revenue-sharing proportion and farming scale constraints.

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Comparative analysis reveals incentive compatibility in subsidy strategies for farmers and enterprises, suggesting social welfare improvement.

Huang et al. (2025) studied this question.

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Comparative analysis reveals incentive compatibility in subsidy strategies for farmers and enterprises, suggesting social welfare improvement.