Abstract
This study addresses the impact of government subsidy policies and farmers' environmental safety preferences on bio-pesticides from a supply chain network perspective with consideration of economic benefits and research and development (R&D) efficiency. We formulate a supply chain network equilibrium model to characterize the competition and cooperation among the various entities in the supply chain. To solve the model, a self-adaptive projection-based prediction correction algorithm is introduced. An avermectin supply chain case is used to analyze the impacts of different subsidy strategies and farmers' preferences on the equilibrium decisions. The numerical results show that: (1) While increased R&D subsidies can improve the quality of bio-pesticides, the excessive subsidies could lead to a lower actual profitability in the supply chain; (2) farmers' environmental safety preference has a strong impetus to manufacturers' R&D investment decisions; and (3) the combinations with a high R&D subsidy ratio are more conducive to the co-development of economic and ecological benefits.
Graphical abstract
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Research framework
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Data availability
The data, model, or code that support the findings of this study are available from the corresponding author upon reasonable request.
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Funding
This research was supported by National Natural Science Foundation of China [grant numbers 71803084 and 72101208], Humanity and Social Science Fund of the Ministry of Education of China [grant number 22YJA630033], Social Science Foundation of Jiangsu Province [grant number 21GLC003], Fundamental Research Funds for the Central Universities [grant numbers NAU: SKYZ2022043 and NAU: SKYZ2023040], XJTLU Research Development Fund [grant number RDF-22-02-010], and Outstanding Young Scholar of Jiangsu Qing Lan Program.
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Contributions
All authors contributed to the study conception and design. The first draft of the manuscript was written by Y.J., X.L., Z.Z., and J.C., The draft of the manuscript was reviewed and edited by Y.J., J.C., and L.Z.. The research results were reviewed and validated by Y.J., J.C., and L.Z.. All authors read and approved the final manuscript.