中国物理B ›› 2024, Vol. 33 ›› Issue (3): 30203-030203.doi: 10.1088/1674-1056/ad0113

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Discreet investors exert greater influence on cooperation in the public goods game

Hong-Wei Kang(康洪炜)1, Zhan-Yao Jin(金展瑶)1, Ming-Yuan Li(李明远)1, Mie Wang(旺咩)2, Xing-Ping Sun(孙兴平)1, Yong Shen(沈勇)1, and Qing-Yi Chen(陈清毅)1,†   

  1. 1 School of Software, Yunnan University, Kunming 650000, China;
    2 College of Information Science and Engineering, Northeastern University, Shenyang 110004, China
  • 收稿日期:2023-04-20 修回日期:2023-08-30 接受日期:2023-10-07 出版日期:2024-02-22 发布日期:2024-02-29
  • 通讯作者: Qing-Yi Chen E-mail:devas9@ynu.edu.cn
  • 基金资助:
    Project supported by the Open Foundation of Key Laboratory of Software Engineering of Yunnan Province (Grant Nos. 2020SE308 and 2020SE309).

Discreet investors exert greater influence on cooperation in the public goods game

Hong-Wei Kang(康洪炜)1, Zhan-Yao Jin(金展瑶)1, Ming-Yuan Li(李明远)1, Mie Wang(旺咩)2, Xing-Ping Sun(孙兴平)1, Yong Shen(沈勇)1, and Qing-Yi Chen(陈清毅)1,†   

  1. 1 School of Software, Yunnan University, Kunming 650000, China;
    2 College of Information Science and Engineering, Northeastern University, Shenyang 110004, China
  • Received:2023-04-20 Revised:2023-08-30 Accepted:2023-10-07 Online:2024-02-22 Published:2024-02-29
  • Contact: Qing-Yi Chen E-mail:devas9@ynu.edu.cn
  • Supported by:
    Project supported by the Open Foundation of Key Laboratory of Software Engineering of Yunnan Province (Grant Nos. 2020SE308 and 2020SE309).

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摘要： This paper studies the evolutionary process of cooperative behavior in a public goods game model with heterogeneous investment strategies in square lattices. In the proposed model, players are divided into defectors, cooperators and discreet investors. Among these, defectors do not participate in investing, discreet investors make heterogeneous investments based on the investment behavior and cooperation value of their neighbors, and cooperators invest equally in each neighbor. In real life, heterogeneous investment is often accompanied by time or economic costs. The discreet investors in this paper pay a certain price to obtain their neighbors' investment behavior and cooperation value, which quantifies the time and economic costs of the heterogeneous investment process. The results of Monte Carlo simulation experiments in this study show that discreet investors can effectively resist the invasion of the defectors, form a stable cooperative group and expand the cooperative advantage in evolution. However, when discreet investors pay too high a price, they lose their strategic advantage. The results in this paper help us understand the role of heterogeneous investment in promoting and maintaining human social cooperation.

关键词: public goods game, heterogeneous investment, discreet investors, cooperation

Abstract: This paper studies the evolutionary process of cooperative behavior in a public goods game model with heterogeneous investment strategies in square lattices. In the proposed model, players are divided into defectors, cooperators and discreet investors. Among these, defectors do not participate in investing, discreet investors make heterogeneous investments based on the investment behavior and cooperation value of their neighbors, and cooperators invest equally in each neighbor. In real life, heterogeneous investment is often accompanied by time or economic costs. The discreet investors in this paper pay a certain price to obtain their neighbors' investment behavior and cooperation value, which quantifies the time and economic costs of the heterogeneous investment process. The results of Monte Carlo simulation experiments in this study show that discreet investors can effectively resist the invasion of the defectors, form a stable cooperative group and expand the cooperative advantage in evolution. However, when discreet investors pay too high a price, they lose their strategic advantage. The results in this paper help us understand the role of heterogeneous investment in promoting and maintaining human social cooperation.

Key words: public goods game, heterogeneous investment, discreet investors, cooperation

中图分类号:  (Decision theory and game theory)

  • 02.50.Le
02.50.Ng (Distribution theory and Monte Carlo studies) 02.60.Cb (Numerical simulation; solution of equations) 02.70.Uu (Applications of Monte Carlo methods)