| With the progress and development of human society,the widespread cooperative behavior has become a very important issue for researchers in the fields of biology,economics,and sociology.Among them,the phenomenon of charitable donation has aroused wide discussion in society.It is not only a cooperative social behavior but also a positive response to the national policy of “common prosperity”.As one of the forms,the personal charitable donation has laid a solid foundation and injected inexhaustible power into the development of China’s philanthropy.However,in recent years,there have been some problems,such as the low per capita amount of charitable donations,and the popularization and enthusiasm of national donation behavior still need to be improved.This is because people are rational and constantly seek to maximize their own gains while ignoring the collective interest,which is what we call the social dilemma.Based on the above problems,this paper,on the basis of the traditional donation game model and indirect reciprocity mechanism,considers both donation and acceptance behaviors,introduces three indicators of donation ratio,reputation ratio,and social environment,establishes the corresponding differential equation model in chapter three and uses Monte Carlo Simulation in chapter four to study the evolutionary dynamics of individual behavioral strategies.Through a large number of simulation experiments and image analyses,the influence of income,reputation,and social environment on whether to donate and whether to accept donations is investigated.The results show that the donation ratio has more influence on whether people accept donations or not,and the percentage of people who choose to accept donations increases with the increase of the donation ratio,so a smaller value of donation ratio can promote selfless behavior.The reputation ratio can lead people to choose more selfless strategies due to the fear of damaging their reputation when the donation ratio is larger,in addition,the promotion effect of the reputation ratio on selfless behavior tends to increase with the decrease of the donation ratio.The social environment has a more significant effect on limiting selfish behavior,that is,creating a good atmosphere for charitable donations is more effective than rewarding and punishing people by reputation. |
