Abstract
The adoption of agricultural green production technologies (AGPTs) is crucial for achieving agricultural green development in developing countries. This paper establishes a tripartite game model to explore the evolutionary influence mechanism of government environmental regulation policies and bank green credit policies on farmers’ adoption of AGPT under different initial conditions and strategy choices. Through theoretical analysis and numerical simulation, we systematically deduce the evolutionary path and equilibrium conditions, as well as examine the synergistic evolutionary effect of these policies. The results demonstrate that government environmental regulation and banks’ implementation of the green credit policies effectively encourage farmers to adopt AGPT. However, conflicts may arise during the dynamic evolution process when banks choose to implement the green credit policy. These conflicts can be mitigated by utilizing market-oriented mechanisms such as loan interest rates, improving bank supervision efficiency, and enhancing farmers’ expected income. The findings of this research provide valuable insights into the development of external incentive mechanisms to promote the adoption of AGPT among farmers and foster green agricultural development.
Introduction
Effectively guiding and motivating farmers to adopt agricultural green production technologies (AGPT) is crucial to achieve green agricultural development (; ; ; ), especially in developing countries (; ). The adoption of AGPT can introduce new production factors into the production process, which is of significant help in improving agricultural productivity, reducing input and increasing output, and controlling pollutant emissions (; ; ). In recent years, the Chinese government has issued several policy documents to promote farmers to adopt AGPT, including initiatives to enhance and preserve cultivated land quality, reduce the use of fertilizers and pesticides to improve efficiency, control agricultural non-point source pollution, and promote the recycling of agricultural waste (; ). According to data released by the Chinese government, the utilization rates of pesticides and fertilizers for rice, wheat, and corn in China reached 40.6% and 40.2% in 2020, only increasing by 5% and 4%, respectively, compared to that in 2015. There remains a significant gap between China and agriculturally advanced countries.
However, at present, under the restriction of many factors, the adoption rate of AGPT among farmers is relatively low (). Motivating farmers to adopt AGPT urgently requires effective support from external policies. On one hand, compared with traditional agricultural production, the threshold of green production is relatively high, the initial investment for farmers to adopt AGPT is tremendous, and the return cycle is long (Zhang et al., 2021). In addition, agricultural green production has a great uncertainty, the lack of credit support resulting in farmers having insufficient internal motivation to adopt AGPT(Yu et al., 2020; ). On the other hand, the adoption of AGPT is helpful for energy saving and emission reduction, which demonstrates a strong positive externality (). However, the ecological benefits of farmers adopting AGPT are much higher than the economic benefits, thereby reducing the enthusiasm of individual farmers (). The government external intervention plays a crucial role in motivating farmers to adopt AGPT and enhancing overall social welfare (). Therefore, it is necessary to explore how different policies can promote farmers’ adoption of AGPT under the external intervention of the government.
In practice, environmental regulation and green credit are important policy instruments for the government to motivate farmers to adopt AGPT in China (; ; Zheng and Su, 2023). However, there exists a debate within academia regarding whether environmental regulation can effectively motivate farmers to adopt AGPT and enhance economic performances (). On one hand, the government guides farmers to adopt AGPT through the establishment of environmental standards and the development of relevant policies and regulations (; ; ). Nevertheless, the “compliance costs” associated with governmental environmental regulation can increase the expenses of procuring green raw materials and new equipment, which may diminish farmers’ willingness to adopt AGPT (). On the other hand, the government also offers various incentive measures, such as tax reductions and subsidies, to amplify the “compliance benefits” for farmers and encourage them to adopt AGPT (; ; Zhang et al., 2021). Under the government’s external intervention, the threshold condition for farmers to adopt AGPT is that the “compliance benefits” surpass the “compliance cost,” which is also a crucial criterion for assessing the reasonability of environmental regulations (Tang et al., 2021). In existing empirical research, discovered that environmental regulations reduce household income, as with reduction in incomes, people will focus more on economic development than on environmental issues. Yu et al. (2019), based on the sample data of 818 tea farmers in China’s geographical indication protection areas, discovered that punitive environmental regulations have no significant effect on tea farmers’ reducing pesticide behavior, while incentive environmental regulations such as technology subsidies and product subsidies have a significant effect. Shi and Zhang (2021) shows that diverse types of environmental regulation combinations can better encourage farmers to adopt AGPT.
On the financing side, bank credit is an important channel for farmers to obtain financial support (; ; Zheng and Su, 2023). The green credit policy is based on credit rationing rules that combine “environmental protection” and “financial integration” (). By setting a certain “environmental threshold,” it releases signals orienting toward encouraging farmers’ green production, thereby alleviating the burden on farmers in paying off the currency interest and reducing production cost (; Zheng and Su, 2023). However, as a profitable market entity, banks decide whether to provide green credit support based on fully evaluating the risk of farmers adopting AGPT by using Big Data, cloud computing, artificial intelligence, blockchain, and other technologies (Yu et al., 2020; ). Driven by the goal of “maximizing profits,” banks are prone to opportunistic behavior, which may increase credit support for “non-environmentally friendly” projects (; ). In addition, the greenwashing behavior of some farmers may cause banks to suffer from losses due to “fraudulent loans.” To reduce the risk of “fraudulent loans,” banks will respond to government environmental supervision strategies by not implementing the green credit policy (; ). Therefore, it will be difficult to motivate farmers to adopt AGPT if banks implement the green credit policy without effective government regulatory constraints.
To sum up, under the external intervention of the government, whether banks implement the green credit policy and whether farmers adopt AGPT are based on the cost–benefit comparison (Lin et al., 2021; Yang and Qi, 2022). The strategy selection based on cost–benefit analysis is not only affected by the influence of external government intervention but also influenced by the dynamic evolution process of imitation, learning, and variation from different groups (; ; ). It is a collaborative game process involving local governments, banks, and farmers. Currently, some scholars have used the evolutionary game model to study decision-making problems among the government, banks, and farmers from the perspective of environmental regulation or green credit. constructed a game model and analyzed the changing rules of strategy choice between borrowers and lenders. Tang et al. (2021) and , based on the perspective of supply chain finance, constructed an evolutionary game model involving the three parties of family farm, e-commerce platform, and rural credit cooperatives. also constructed an evolutionary game model of green transformation of farmers’ production led by cooperatives under the environmental regulations and explored the impact of differences in the initial willingness of various subjects on the evolution of green transformation of farmers’ production.
Through the literature reviewed, it can be found that previous research has mainly focused on the strategic interaction among the government, banks, and farmers within the context of environmental regulation or green credit. However, few scholars have examined these three entities together within a single framework. Additionally, there is a lack of research concerning how to regulate bank execution of green credit policies and facilitate the adoption of AGPT by farmers from the perspective of government environmental regulation policy design. Based on the research purpose and existing literature, this paper aims to address the following key issues: 1) what are the factors that promote farmers to adopt AGPT under different environmental regulation policies? 2) Can government environmental regulation policies and bank green credit policies synergistically promote the evolution of farmers in adopting AGPT? Is there a policy conflict and how to avoid it? 3) What is the evolutionary path of farmers’ adoption of AGPT through the implementation of government environmental regulation policies and bank green credit policies? And what are the realistic conditions need to be met? In response to the aforementioned problems, this paper constructs a tripartite cooperative evolutionary game model among the government, banks, and farmers, exploring the evolution paths, equilibrium state, and collaborative conditions of environmental regulation policies and green credit policies, which synergistically promote farmers to adopt AGPT so as to develop an external incentive mechanism that promotes farmers to adopt AGPT and facilitate green agricultural development.
The rest of the study is organized as follows. The second part presents and analyzes a tripartite evolutionary game model. The third part solves the model and analyzes the stability of various strategies. Next, simulation analysis and parameter sensitivity are discussed. Finally, the conclusions and suggestions are presented.
Model hypothesis and model construction
In the process of agricultural green development, the government plays a crucial role as the creator and supervisor of environmental regulations and green credit policies. To support and accelerate the green development of agriculture, the government needs to formulate appropriate financial support policies, in addition to providing technical subsidies to farmers. Furthermore, in order to guide farmers toward adopting AGPT, the government should enforce regulations on market participants, such as banks and farmers, ensuring the effective implementation of relevant policies. Banks serve as the implementers of green credit policies, and they implement different credit rates to encourage farmers to adopt AGPT. Additionally, digital technology is utilized by banks to assess farmers’ eligibility for loans and to mitigate credit risks. This technological assessment also guarantees the proper utilization of green credit funds. At the same time, farmers are vital participants in the adoption of AGPT, including ordinary farmers, specialized households, family farms, and other new types of agricultural businesses. They must make decisions on whether to adopt AGPT and apply for green credit by weighing factors such as investment cost, technical feasibility, and market risks. It is important to recognize that the decision-making process of farmers regarding the adoption of AGPT may not always be entirely rational. Based on the aforementioned points, the following hypotheses are proposed:
Assumption 1Due to information asymmetry, in the process of agricultural green development, the government will have two choice strategies: “strict supervision” and “loose supervision,” that is, the strategic space of the government is (strict supervision and loose supervision), and the probability of choosing “strict supervision” is (). Banks also have two choice strategies: implementing green credit and not implementing green credit, the strategic space of banks is (implementation and non-implementation), and the probability of implementing green credit is (). Similarly, farmers have two choice strategies: adopting AGPT and not adopting AGPT, that is, the strategic space of farmers is (adoption and non-adoption), and the probability of choosing “adoption” is ().
Assumption 2The government incentivizes farmers to adopt AGPT through both “technology subsidy” and “pollution penalty” policies. The “technology subsidy” has a positive incentive effect, whereas “pollution penalty” has a negative incentive effect. Additionally, the government has implemented a green credit policy to motivate farmers to adopt AGPT. Banks also provide preferential loan rates to farmers who adopt AGPT and offer ordinary loan rates () to farmers who do not adopt AGPT.
Assumption 3The adoption of AGPT by farmers will result in increased costs, such as the purchase of green raw materials, related equipment, and the acquisition of new production technologies. represents the increased cost of farmers’ adoption of AGPT. The implementation of green production practices can improve environmental quality, represents the comprehensive benefits obtained by improving the environmental quality and enhancing the credibility of local governments, and represents the reward income from the higher-level government entities. Considering the periodicity of agricultural product production, represents the expected income of farmers’ adoption of AGPT, and represents the income of non-adopting AGPT. To ensure timely loan support for farmers adopting AGPT, the bank provides them with loans first and then carries out post-loan supervision. The credit scale applied for by farmers is represented as , while the increased cost for banks implementing green credit is represented as . During the implementation of green credit, the bank has the risk of being “fraudulent loaned,” represents the probability of farmers being found to be “fraudulent loaned,” and represents the liquidated damages paid by the bank for such loans. To guarantee loan support for farmers adopting AGPT in time, the bank grants loans to them first, followed by post-loan supervision.
Assumption 4The government assesses the situation of farmers adopting AGPT and banks implementing green credit policies through supervision. When the government chooses the “strict implementation” strategy: if the farmers choose the strategy of adoption, they will receive technical subsidies from the government, where is the coefficient of technical subsidies. If farmers choose the strategy of non-adoption, they may engage in environmentally unfriendly practices, leading to environmental pollution, where is the penalty for environmental pollution. The government also implements a system of rewards and punishments for banks, where is the reward coefficient for the bank to implement the green credit policy and is the penalty coefficient for the bank not to implement the green credit policy. When the government chooses the “loose supervision” strategy: if the farmers choose the strategy of adoption, the ecological environment will be improved, the local governments can still obtain the reward income from the higher-level governments, and farmers can still apply for technical subsidies (the subsidy coefficient remains unchanged). However, if farmers choose the strategy of non-adoption, the environment will be polluted, and there will be reputation loss of the government, represented by . To prevent the possibility of “subsidy cheat” by banks that do not implement the green credit policy under loose government supervision, banks need to apply for subsidies from the government themselves. is the total regulatory cost of the government.Based on the aforementioned assumption, the income payment matrix of the government, banks, and farmers is presented in Table 1.In the strategy profile of (G1,B1,F1), the government’s payoff for choosing the strategy of “strict supervision” is the sum of the comprehensive benefits from the improvement of environmental quality and the reputation enhancement of local governments , and the reward income from the higher-level government , which is then subtracted by the total subsidies for farmers and banks , and the total regulatory cost of government . Therefore, the banks’ income can be represented as . The banks’ payoff for implementing the green credit policy is the sum of green credit interest and subsidies , which is then subtracted by the cost of implementing green credit . Thus, the banks’ income can be represented as . Similarly, the farmers’ payoff for choosing to adopt AGPT is the sum of expected income and the technical subsidy , which is then subtracted by the increased cost of adopting AGPT and the payment of bank green credit interest . Hence, the farmers’ income can be expressed as . The payoff of other strategy profiles is shown in Table 2.According to the aforementioned payoff matrix, we can calculate the replication dynamic equations for different strategy choices of the government, banks, and farmers.The expected benefits of the government choosing the strategy of “strict supervision” are represented by , the expected benefits of government choosing strategy of “loose supervision” are represented by , and the average expected benefits of government are represented by . Then,The replication dynamic equation of the government is as follows:The expected benefits of banks choosing the strategy of “implementation” are represented by , the expected benefits of banks choosing the strategy of “non-implementation” are represented by , and the average expected benefits of banks are represented by UB. Then,The replication dynamic equation of banks is as follows:The expected benefits of farmers choosing the strategy of adopting AGPT are represented by , the expected benefits of farmers choosing the strategy of non-adopting AGPT are represented by , and the average expected benefits of farmers are represented by UF. Then,The replication dynamic equation of farmers is as follows:Combining three equations, the replication dynamic system of the government, banks, and farmers is as follows:
TABLE 1
| Government (G) | Bank (B) | Farmer (F) | |
|---|---|---|---|
| Adoption (z) | Non-adoption (1-z) | ||
| Strict supervision (x) | Implementation (y) | (G1,B1,F1) | (G5,B5,F5) |
| Non-implementation (1-y) | (G2,B2,F2) | (G6,B6,F6) | |
| Loose supervision (1-x) | Implementation (y) | (G3,B3,F3) | (G7,B7,F7) |
| Non-implementation (1-y) | (G4,B4,F4) | (G8,B8,F8) | |
Tripartite game matrix of the government, banks, and farmers.
TABLE 2
| Strategy profile | Government payoff | Bank payoff | Farmer payoff |
|---|---|---|---|
| (G1,B1,F1) | |||
| (G2,B2,F2) | |||
| (G3,B3,F3) | |||
| (G4,B4,F4) | |||
| (G5,B5,F5) | |||
| (G6,B6,F6) | |||
| (G7,B7,F7) | |||
| (G8,B8,F8) |
Payoff matrix of government, banks, and farmers.
Equilibrium point and stability analysis of the evolutionary game
According to the research conclusion of Reinhard, we can judge the strategy portfolio stability by analyzing the Jacobian matrix. The Jacobian matrix of the evolutionary system is as follows:
Among them, , , , , , , , , and
In the dynamic system composed of three game agents, assuming , , and , we obtain eight Nash equilibrium points of the system: E1 (0,0,0), E2 (0,0,1), E3 (0,1,0), E4 (0,1,1), E5 (1,1,1), E6 (1,0,0), E7 (1,1,0), and E8 (1,0,1). According to Lyapunov’s first law, if the eigenvalues of the corresponding matrix are all negative, the equilibrium point is the ESS. The stability of each point is presented in Table 3.
TABLE 3
| Equalization point | Eigenvalue | Eigenvalue | Eigenvalue |
|---|---|---|---|
| E1 (0,0,0) | |||
| E2 (0,0,1) | |||
| E3 (0,1,0) | |||
| E4 (0,1,1) | |||
| E5 (1,1,1) | |||
| E6 (1,0,0) | |||
| E7 (1,1,0) | |||
| E8 (1,0,1) |
Jacobian matrix eigenvalues.
To analyze the evolutionary path of environmental regulation and green credit policies promoting the adoption of AGPT by farmers, the following two situations are discussed:
(1) When , there is , that is, under the intervention of the government, the net income obtained by banks implementing green credit is greater than that obtained without implementing green credit; as indicated in Table 3, the evolutionary equalization points are among E3 (0,1,0), E4 (0,1,1), E5 (1,1,1), and E7 (1,1,0). When , that is, the reward income from the higher-level government for improving of the ecological environment outweighs the administrative costs, whether farmers are willing to adopt AGPT depends on the size of and , when , there is , that is, under the external intervention of the government, the net income obtained by farmers adopting AGPT is greater than that obtained without adopting AGPT, that is, . At this time, the evolution system is stable in the expected game equilibrium point of E5 (1,1,1); otherwise, the system will be stable in E7 (1,1,0).
Based on the aforementioned analysis, first, we can see that the combination of environmental regulation policies and green credit policies is a necessary condition to promote farmers to adopt AGPT. When the policy benefits of local governments through strict supervision outweigh their expenditures, and the long-term benefits of banks implementing green credit policies surpass their costs, farmers have the incentive to adopt AGPT when the technical subsidy exceeds the critical value . Second, the government should increase technical subsidies to effectively reduce the production cost for farmers adopting AGPT. It is also crucial to strengthen credible punishment for farmers’ reputation and economic formation when they do not adopt AGPT. Additionally, reducing the supervision costs of banks implementing green credit policies will facilitate the realization of the evolutionary steady state.
(2) When , there is , that is, when the government’s incentives are not sufficient, the net income obtained by banks implementing the green credit policy is less than that gained by non-implementation, and the bank lacks the motivation to implement. As shown in Table 3, the equilibrium points include E1 (0,0,1), E2 (0,0,1), E6 (1,0,0), and E8 (1,0,1). If , that is, the government’s policy benefits from environmental regulation on banks and farmers outweigh the policy expenditures, the government will adopt a strict supervision strategy. Whether farmers are willing to adopt AGPT depends on the value of and . When , there is , that is, the net income obtained by farmers adopting AGPT exceeds that obtained by not adopting AGPT, and the evolution system will reach stability at the game equilibrium point of E8 (1,0,1); otherwise, the system will be at the equilibrium state E6 (1,0,0).
Through the aforementioned analysis, first, we can see that the strategic choice of banks to implement green credit policies is profit-driven, which is consistent with the current situation in China where the implementation effects of green credit are unsatisfactory. At present, due to the long-term benefits of implementing green credit and adopting AGPT being unclear to banks and farmers, the adoption rates of green credit and AGPT remain low. Even if the government adopts reward and punishment regulation measures, banks and farmers will eventually choose “non-implementation” and “non-adoption” strategies. To overcome this poverty trap, the government should strengthen the regulation by increasing the technology subsidy coefficient and penalty amount . Simultaneously, the subsidy coefficient (ω2) for banks implementing the green credit policy should be increased to enhance farmers’ and banks’ incomes. These measures aim to continuously improve the adoption rates of green credit policies and AGPT among farmers and finally realize the evolution of the system from E6 (1,0,0) to E5 (1,1,1).
Evolutionary simulation and analysis
To assess the validity of the research conclusions, this paper utilizes the MATLAB 2020b system simulation tool to simulate the dynamic evolution path of the game participants. Initially, the model parameters are assigned based on statistical data and public information. The impact and effectiveness of various policy tools on the system’s convergence toward an ideal evolutionary stable equilibrium E5 (1,1,1) are then simulated.
The basis of assignment parameters and data source
The basis of the assignment of main parameters is based on the China Environmental and Economic Policy Progress Evaluation Report of 2022. The value of “government environmental pollution control cost” is assigned using the “special funds for rural environmental improvement,” while the value of “increased cost of farmers’ green technology adoption” is assigned using the “total investment amount of new ecological construction and environmental protection projects.” Additionally, the value of “government supervision cost” is assigned using the “supervision budget of environmental supervision department.”
The study collected the data from the “China Rural Research Database.” This database is a reliable and comprehensive resource that consolidates the research findings of large-scale projects focusing on Chinese villages. It provided various resources concerning the development of rural revitalization in China, including think tank reports and investigation materials such as reports, data, and interview materials. Based on the data provided by the database, we calculated the ratio of 30:10:2; therefore, let , , and .
The assignment of other parameters is based on the relationship between different parameters. Considering the principle that “compliance benefits” should exceed “compliance cost,” the total amount of green credit applied by farmers is not less than the increased cost of adopting AGPT, Therefore, let . Considering the positive externalities of the cost input on farmers’ adoption of AGPT, the comprehensive income resulting from the enhancement of government credibility should be greater than the input cost. Thus, , and let . Suppose represents the ability of farmers to turn the cost input of adopting AGPT into green production performance, then . Combined with the fact that the average selling price of green ecological rice on the market is approximately twice as high as that of ordinary rice in China, let , and , then and . Environmental regulation can effectively incentivize farmers to adopt AGPT when the government’s penalties for environmental pollution outweigh the income opportunities from non-adoption, that is, , so that let . According to the annual interest rate of agricultural loans announced by the Agricultural Bank of China in 2023, let . The expected income of bank green credit is greater than the increased cost, so , and let . According to the legal interpretation of the Contract Law of the People’s Republic of China: “if the liquidated damages agreed upon by the parties exceed 30% of the actual losses incurred, it can generally be considered as ‘excessively higher than the losses caused’ as stipulated in the Civil Code.” Suppose . Based on the parameter relationship, the initial values of other parameters were set as follows: , , and .
Analysis of model simulation results
Convergence of the benchmark scenario system
Based on the aforementioned parameter’s assignment, , , , , , , , , , , , , , , and . The results of judging the evolutionary stability equilibrium by the Lyapunov stability conditions are shown in Table 4.
TABLE 4
| Equalization point | E1 (0,0,0) | E2 (0,0,1) | E3 (0,1,0) | E4 (0,1,1) | E5 (1,1,1) | E6 (1,0,0) | E7 (1,1,0) | E8 (1,0,1) |
|---|---|---|---|---|---|---|---|---|
| Eigenvalues | + | + | + | + | - | - | - | - |
| Eigenvalues | - | - | + | + | - | - | + | + |
| Eigenvalues | - | + | - | + | + | - | - | + |
| Stability | Unstable point | Unstable point | Unstable point | Unstable point | Unstable point | Stable point | Unstable point | Unstable point |
System equilibrium points and their eigenvalues.
According to Table 4, E6 (1,0,0) is the evolutionary stable point. The strategy choices of different subjects are as follows: farmers not adopting AGPT, banks not implementing green credit policies, and the government choosing a strict supervision strategy. This state represents the worst system convergence with regard to evolutionary stability. In this scenario, government intervention not only fails to produce the desired outcome but also incurs the cost of strict supervision. Judging from the conditions for the gradual stability of E6 (1,0,0), , it can be inferred that the policy income generated by banks implementing green credit is insufficient to compensate for the increased cost. As a result, banks tend to choose a strategy of “non-implementation” in order to avoid risks, becoming the dominant equilibrium. The decision of banks to not implement the green credit policy hinders its implementation, leaving the government to rely on environmental regulation tools to encourage farmers to adopt AGPT. However, the condition for the farmers’ gradual stability is , and it indicates that a single environmental regulation policy in the current rural areas of China, given the current penalties for environmental pollution and technical subsidy standards, is not able to change farmers’ choice of the “non-adopting” strategy. To promote the adoption of AGPT among farmers, it becomes crucial to introduce market-oriented regulations. Figure 1 illustrates the evolutionary equilibrium result of the benchmark scenario system.
FIGURE 1
Banks’ green credit strategy simulation
Based on the simulation results of the benchmark situation, to realize the policy goal of environmental regulation and green credit synergistically promoting farmers to adopt AGPT, the government must change the banks’ strategic choice of “non-implementation.” One solution is for the government to increase subsidy support for banks. When , the system reaches the evolutionary equilibrium state.
It can be seen from Figure 2 that the evolutionary system eventually converges to the evolutionary stable point E7 (1,1,0) after 10 periods. The strategy choices of different subjects are as follows: farmers not adopting AGPT, banks implementing green credit policies, and the government choosing the strict supervision strategy. By comparing it to E6 (1,0,0), it is evident that increasing subsidy standards can reduce that risk associated with banks implementing green credit policies. Banks will change their strategy choice of “non-implementation” because the government subsidies’ bottom-line guarantee can stabilize the losses caused by “fraudulent loans.” However, even with government intervention, the policy goal of farmers adopting AGPT still has not been achieved since the net income for farmers who choose the “adoption” strategy is negative. It indicates that a combination of environmental regulation policies and green credit policies is essential to promote the adoption of AGPT among farmers. Therefore, the realization of the farmers’ policy goal depends on the combination of various policy tools.
FIGURE 2
Simulation of government environmental regulation intensity
Farmers adopting AGPT must meet the condition of to ensure that the net income of farmers choosing the “adoption” strategy is positive. This condition also serves as a precondition for the system to converge to the ideal evolutionary stable equilibrium E5 (1,1,1). In terms of policy tool design in the model, the technology subsidy coefficient , the green credit subsidy coefficient , the environmental pollution penalty , the green credit interest rate , and the probability of farmers being found with fraudulent loans are the key variables that affect the evolutionary system to converge to E5 (1,1,1). Normally, banks determine the loan interest rate based on the cost of green credit. However, the banks’ green credit income is variable, so we relax the assumption of , while keeping other parameters constant, to simulate the impact of the changes in government environmental regulation intensity on the convergence to E5 (1,1,1). The simulation results are presented in Figure 3.
FIGURE 3
As shown in Figure 3A, when the proportion of farmers adopting AGPT is low , increasing the technology subsidy coefficient and decreasing the green credit interest rate can effectively promote the behavior evolution of farmers adopting AGPT. As shown in Figure 3B, when the proportion of farmers adopting AGPT is high , appropriately reducing the technology subsidy, increasing the environmental pollution penalty, and increasing the green credit interest rate significantly accelerate the evolution rate of AGPT adoption. This further underscores the importance of not underestimating the influence of environmental regulation and credit incentives in the adoption of AGPT by farmers.
By comparing Figures 4A, B, it is evident that by keeping the intensity of government environmental regulation unchanged and increasing the interest rate of green credit, the rate of evolution in banks’ adoption of the green credit strategy is significantly accelerated. However, the rate of evolution in farmers’ adoption of the AGPT strategy does not change significantly. This indicates a certain policy conflict loss in the dynamic evolution process of implementing green credit and environmental regulation to promote farmers’ adoption of AGPT. Further analysis shows that the increase in results in a decrease in farmers’ profit from using bank green credit for production. This weakening of the role of the green credit policy further increases the difficulty of environmental regulation policies in promoting farmers’ adoption of AGPT.
FIGURE 4
Simulation of banking supervision efficiency
In order to prevent farmers from resorting to fraudulent loans, banks need to strengthen their supervision of green credit. Neglecting such supervision will lead to fraudulent loans, which not only inhibits the incentive effect of green credit in promoting farmers’ adoption of AGPT but also affects the synergistic effect of the green credit and environmental regulation policies. In the model setting, the probability of discovering farmers’ fraudulent loans affects the income of both farmers and banks, and increasing this probability indicates an improvement in bank supervision efficiency, thereby reducing the profits of farmers’ production during the period of fraudulent loans. Keeping other parameters unchanged, we simulate the impact of the combination of environmental regulation and green credit policy on the system convergence to E5 (1,1,1). The simulation results are shown in Figure 5.
FIGURE 5
By comparing Figures 5A,B, it can be observed that the evolution rate of banks implementing green credit strategies does not vary significantly with the increase of . However, the rate of farmers adopting AGPT strategies shows a significant change. This indicates that the improvement in bank supervision efficiency helps reduce the conflict loss between green credit and environmental regulation to some extent. In fact, the improvement in bank supervision efficiency leads to farmers not adopting AGPT and a decrease in income from “fraudulent loans.” Conversely, the net income of farmers adopting AGPT increases, effectively exhibiting the incentive role of green credit in encouraging farmers to adopt AGPT. This further enhances the policy effect of implementing environmental regulation by the government.
Simulation of expected income of farmers adopting AGPT
Expected income plays a pivotal role in driving farmers to adopt AGPT. Different expected income has an impact on the implementation effectiveness of green credit and environmental regulation in promoting AGPT adoption by farmers. In the model setting, represents the increase in expected income resulting from farmers adopting AGPT. Let and , respectively, to simulate the influence of the change of environmental regulation intensity and green credit support on the system convergence to E5 (1,1,1) under different expected income. The simulation results are presented in Figure 6 and Figure 7.
FIGURE 6
FIGURE 7
It can be observed from Figures 6A, B that when the expected income of farmers adopting AGPT is low (), there is no significant change in the evolution rate of the banks’ green credit strategy with the increase of ω1 and the decrease of , and the evolution rate of the banks’ green credit strategy does not change obviously significantly. Similarly, the evolution rate of farmers adopting the AGPT strategy also does not change significantly. This indicates that the low expected return exacerbates the loss of policy conflicts between green credit and environmental regulation.
It can be seen in Figures 7A, B that when the expected income of farmers adopting AGPT is high ((), appropriately reducing the technical subsidy standard and increasing the interest rate of green credit can increase the evolution rate of farmers adopting AGPT strategies. This suggests that increasing the expected income of farmers can effectively alleviate the conflict between green credit and environmental regulation. The simulation results further indicate that when the expected income of farmers adopting AGPT is decreasing, the impact of “compliance benefits” produced by environmental regulation is weak. In order to achieve the regulatory goal of promoting green development of farmers’ production, the government can adopt the policy combination of “high subsidies and low penalties,” while also capping the interest rate of banks to implement green credit. When the expected income of farmers adopting AGPT increases, the “compliance benefits” produced by environmental regulation have a significant effect. In this case, the policy combination of low subsidies and high penalties, and at the same time, plays the role of interest rate marketization mechanism, and it can improve the policy synergistic effect of green credit and environmental regulation in promoting farmers to adopt AGPT. Overall, these findings suggest that the expected income of farmers adopting AGPT plays a crucial role in determining the effectiveness of green credit and environmental regulation policies.
Conclusion and recommendations
This study establishes a non-cooperative evolutionary game model to analyze the relationship between government environmental regulation, bank green credit support, and farmers’ adoption of AGPT and explores the optimal conditions for achieving evolutionary stability and equilibrium in promoting farmers’ adoption of AGPT through environmental regulation and green credit policy. Additionally, numerical simulations are used to assess the synergistic effect of implementing environmental regulation and green credit policies.
The research findings indicate several key points: first, different from the previous research focused on the impact of a single environmental regulation policy on farmers’ environmental behavior (; ), the combined mechanism design and regulatory intervention of environmental regulation and green credit policies effectively incentivize farmers to adopt AGPT. Second, in order to achieve the policy goal of promoting farmers’ adoption of AGPT through the synergistic implementation of environmental regulation and credit policies, the government must change the strategic choices of banks by reducing the risks associated with implementing green credit policies and providing government subsidies. Third, conflicts may arise during the dynamic evolution of environmental regulation and green credit policies in promoting farmers’ adopting of AGPT, which differs from previous conclusions drawn in the game between the government, banks, and farmers (Tang et al., 2021; ). To mitigate these conflicts, the government should adopt a flexible combination strategy for environmental regulation, while simultaneously enhancing bank supervision efficiency and improving farmers’ expected income. By implementing these measures, the policy conflict losses between green credit and environmental regulation can be effectively reduced, and the policy regulation goals can be achieved.
To promote the adoption of AGPT among farmers, based on the research conclusions, this paper proposes the following policy recommendations: 1) enhance the external policy incentive mechanism to guide farmers to produce green transformation. In cases where the number of farmers adopting AGPT is low, the government should implement a combination of “high subsidy + low penalty,” while banks should adopt the strategy combination of “low interest rate + high supervision.” This will help alleviate cost pressures faced by farmers when adopting AGPT and reduce the policy risks associated with green credits. As the proportion of farmers adopting AGPT increases, the government can shift to a strategy of “low subsidy + high penalty,” while banks can fully utilize the role of marketizing interest rates to minimize conflicts in policy coordination and guide farmers to adopt AGPT. 2) Foster continual innovation in financial services, while expanding the scale and scope of green credit support for agriculture. On the supply side, the government should further improve the financial service system, supporting financial institutions in developing various carbon financial products suitable for agriculture, rural areas, and farmers. This will create new opportunities for issuing green agricultural credits. On the demand side, banks should broaden the financial service coverage channels through seamless “online + offline” connection, improve the availability of green credits for farmers, and drive the green transformation of farmers’ production. 3) Maximize the technical advantages of digital finance to enhance the efficiency of bank green credit supervision. On one hand, developing digital online lending technology and simplifying the approval process of farmers’ green credit application can help reduce the supervision costs associated with banks’ green credit. On the other hand, reducing the degree of information asymmetry between banks and farmers and reduce the environmental and social risks of banks’ green credit. 4) Intensify promotion of AGPT, strengthen farmers’ income expectations for AGPT adoption, and improve farmers’ enthusiasm and initiative in adopting AGPT.
This paper analyzes the government, banks, and farmers within the same framework, which overcomes the limitations of previous studies that only focus on pairwise games. However, there are still some factors that have not been taken into consideration, such as the lack of consideration for the consumer’s strategic choices. In fact, consumers play a vital role in the process of agricultural green transformation and development, and their preferences for green agricultural products significantly influence farmers’ adoption of AGPT and banks’ implementation of green credit. Therefore, it is important to introduce consumers and analyze the evolutionary game of the four parties. In addition, some novel ideas proposed in this study require empirical testing. The author will also further explore through empirical research.
Statements
Data availability statement
The raw data supporting the conclusion of this article will be made available by the authors, without undue reservation.
Author contributions
ZZ: writing–original draft and writing–review and editing.
Funding
The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This study received the following grants: Philosophy and Social Science Research Major project of Hubei Provincial Universities (pre-funded project of the Provincial Social Science Fund): “Research on synergistic mechanism and realization path of high-quality development of the whole pig industry in Hubei Province” (Grant Number: 21ZD129); High-Level Cultivation Key Project of Huanggang Normal University: “Research on long-term mechanism and path optimization of collaborative governance of rural environment under the background of overall rural revitalization” (Grant Number: 202109104); The Key project of Dabi Mountain Country Zhen Xing Research Institute: “Research on the mechanism and path of industrial integration promoting rural industrial revitalization in Dabi mountain revolutionary old area” (Grant Number: 202218004) and College Students’ Innovative Entrepreneurial Training Project: “Study on the mechanism and path of “red-green integration” to promote the all-round revitalization of rural areas in the old revolutionary areas: taking Dabi mountain as an example” (Grant Number: 202210514015).
Conflict of interest
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
Correction note
This article has been corrected with minor changes. These changes do not impact the scientific content of the article.
Publisher’s note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors, and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.
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Summary
Keywords
environmental regulation, green credit, agricultural green production technology, farmer adoption, evolutionary game
Citation
Zuo ZP (2023) Environmental regulation, green credit, and farmers’ adoption of agricultural green production technology based on the perspective of tripartite evolutionary game. Front. Environ. Sci. 11:1268504. doi: 10.3389/fenvs.2023.1268504
Received
28 July 2023
Accepted
18 September 2023
Published
09 October 2023
Corrected
18 June 2026
Volume
11 - 2023
Edited by
Xianyou Pan, Shanghai University of Electric Power, China
Reviewed by
Henning Otte Hansen, University of Copenhagen, Denmark
Dengke Yu, Nanchang University, China
Mahmood Ahmad, Shandong University of Technology, China
Updates
Copyright
© 2023 Zuo.
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*Correspondence: Zhi Ping Zuo, zuoluo0523@sina.com
Disclaimer
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.