Agent Simulation Of Contract Farming Supply Chain Under Traditional And Platform Mode

Contract farming is a new agricultural model which is based on order contract and connects farmers,intermediate organizations and companies.Contract farming is a supply chain composed of multiple participants.After years of practical demonstration,the scale of the development of order agriculture is growing.It has been widely used in the process of agricultural production and sales,and its own connotation is also constantly enriched and improved.From the development course of contract agriculture,as far as the purchase price mechanism between market players is concerned,it has experienced the changes from “market price”,to “fixed price”,and then to “protection price” price mechanism.As far as organizational mode is concerned,it has experienced the evolution from “company + farmer”,to “company + cooperative + farmer”,and then to “land shares”.Today is the Internet era,and “Internet +” has become another important driving force for the current social and economic development.Agriculture is the basic industry for the development of China's national economy.The combination of Internet and agricultural industry,especially the emergence of a new form of economic development of “Internet + order agriculture”,has a significant impact on the efficient allocation of agricultural resources and the optimization of development space.In view of this,this paper will discuss the traditional mode and platform mode of order agriculture supply chain operation research,combined with multi-agent simulation technology.Considering the inter-chain competition between supply chains,the supply chain participants of the decision-making process and income level of dynamic realization.First,based on the simulation of multi-agent system,a simulation experiment which includes two “company + X+ farmer” contract farming supply chains is designed.And considering the inter-chain competition between supply chains,the influence of the contract price mechanism on the operation of contract farming supply chain under different organizational modes is explored.In view of the two typical organizational modes of “company + farmer” and “company + cooperative + farmer”,we consider that the two supply chains under each mode adopt two combinations of three price mechanisms,namely “protection price”,“market price” and “fixed price”.We aim at realizing the simulation of the price mechanism combination between chains.The results show that: Under the organizational mode of “company + farmer”,the“protection price” price mechanism can not only reduce the market risk faced by farmers due to market price fluctuation,but also reduce the losses faced by companies due to farmers' default compared with the “market price” and “fixed price” price mechanism.Under the organizational mode of “company + cooperative + farmer”,cooperatives are introduced to consider Nash negotiation between cooperatives and companies.The study finds that regardless of the contract mechanism,negotiations between cooperatives and companies increase the negotiated contract price,further increasing farmers' output and profits.Accordingly,the increase of contract price will weaken the difference caused by the characteristics of contract mechanism.Finally,through the comparative analysis of “company + farmer” and “company + cooperative+ farmer” organizational model,the study shows that the introduction of cooperatives can only make the profit of farmers get a limited small increase under the mechanism of “protection price”.This is because the combination of price mechanisms and cooperatives has been weakened.Secondly,on the basis of the above,the introduction of Internet platform in the downstream of the supply chain is further considered.Based on the new mode of“Internet + order agriculture”,the inter-chain competition among supply chains is considered,the impact of the introduction of Internet platform on the whole supply chain and the decision-making and income of each participant in the supply chain is discussed.Therefore,this paper designs a simulation experiment of a supply chain with the first chain as “company +X+ farmer” and the second chain as “e-commerce platform+company +X+ farmer”.Centering on four different organizational modes of “company+ farmer” and “company + farmer + cooperative”,“company + cooperative + farmer”and “company + cooperative + farmer + e-commerce platform”,the simulation of interchain acquisition price mechanism combination is realized by considering the involvement of e-commerce platform in two supply chains respectively.The results show that under the mode of “company + farmer + e-commerce platform”,regardless of the “protected price” or the fixed-price acquisition mechanism,the commission coefficient of e-commerce platform decision-making not only affects the profit of its own platform,but also affects the company's price decision.Electric business platform to extract sales commission,the company will increase the fixed \ protected price,stimulate farmers' agricultural output.Then farmers' income will inevitably increase.But under the price mechanism of “protected price”,the commission coefficient of ecommerce platform is relatively discrete.Under the fixed price acquisition mechanism,the commission coefficient of e-commerce platform is relatively concentrated.Under the mode of “company + cooperative + farmer + e-commerce platform”,no matter what kind of purchase price mechanism,the intervention of e-commerce platform will be conducive to improving agricultural output and income of farmers,and then protecting the interests of farmers.It's just that the company's revenue is lower under this organizational model.It can be seen that the more participants,the better in a single supply chain.The more players involved,the more dispersed the total profits generated by the supply chain as a whole.However,the intervention of e-commerce platform still improves the efficiency of each agent,and improves the overall operational efficiency of the supply chain,and finally realizes the improvement of the order agriculture supply chain.In a word,the study dynamically realizes the decision-making process and income level of each participant in the supply chain through simulation technology.And it draws a series of rich conclusions and has important theoretical and practical significance.The theoretical significance lies in that it provides a new way of thinking for the study of order agriculture supply chain operation from the perspective of multiagent modeling and simulation.The practical significance lies in that it can provide a reference for the decision-making behavior of each participant in the supply chain in the process of agricultural production in the real world.