Research On Emergence Mechanism Of Cooperative Behavior In Social Group By Agent-based Model

Cooperation plays a crucial role in people's daily lives.There are widespread cooperation and competition behaviors in the natural and social systems.Therefore,cooperation has received wide attention from domestic and foreign scholars.Especially when we face public choice,the cooperation of individuals directly determines whether the entire collective goal can be reached.For example,providing public goods,protecting the natural environment and protecting natural resources.However,due to the conflict between individual interests and collective interests,rational people tend to choose non-cooperation strategies from the perspective of maximizing their own interests.The maximization of collective interests is that everyone should adopt a cooperative strategy.Therefore,individuals' rationality led to collective's irrationality.Thus there is a social dillema.This issue has also attracted a great deal of attention from scholars both at home and abroad.In order to improve people's willingness to cooperate among groups,many game models have been proposed to study social phenomena,such as public goods game model,prisoner's dilemma model,cockroach game model,ultimatum game model and so on.At present,with the rapid economic development in China,people have not only gradually pursued material pursuits,but also have pursued higher-level public goods.In recent years,the issue of public goods has drawn wide attention from domestic and foreign scholars.There are many factors that affect the level of cooperation among people,such as punishment,prestige,tolerance,the influence and advice of others,the expectation of the level of group cooperation and so on.This thesis uses computational experiments to study this problem.First,we study the cooperation mechanism based on a simple regular lattice.The effects of different proportions of firm collaborators and strong collaborators of different influence on the equilibrium of system evolution are studied respectively.The results show that the greater the proportion of strong partners,cooperative behaviors are more likely to emerge and maintain.At the same time,the stronger the influence of a firm partner,the more conducive to the emergence and maintenance of cooperation.Then we study cooperation from a broader perspective to study the evolution of cooperation mechanism.In our real life,the impact of the environment on a person can not be ignored.The environment in which the agent is located will largely affect one's behavior decisions.The results show that cooperation is the product of people getting rid of the current predicament,and the existence of the relationship chain between agents can better promote the cooperation.