Combined effect of incentives and coupling in multigames in two-layer networks
The lack of cooperation can easily result in inequality among members of a society, which provides an increasing gap between individual incomes. To tackle this issue, we introduce an incentive mechanism based on individual strategies and incomes, wherein a portion of the income from defectors is all...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
|
| Series: | Journal of Physics: Complexity |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2632-072X/ada844 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832590515973914624 |
|---|---|
| author | Luo-Luo Jiang Yi-Ming Li Wen-Jing Li Attila Szolnoki |
| author_facet | Luo-Luo Jiang Yi-Ming Li Wen-Jing Li Attila Szolnoki |
| author_sort | Luo-Luo Jiang |
| collection | DOAJ |
| description | The lack of cooperation can easily result in inequality among members of a society, which provides an increasing gap between individual incomes. To tackle this issue, we introduce an incentive mechanism based on individual strategies and incomes, wherein a portion of the income from defectors is allocated to reward low-income cooperators, aiming to enhance cooperation by improving the equitable distribution of wealth across the entire population. Moreover, previous research has typically employed network structures or game mechanisms characterized by homogeneity. In this study, we present a network framework that more accurately reflects real-world conditions, where agents are engaged in multiple games, including prisoner’s dilemma games in the top-layer and public good games in the down-layer networks. Within this framework, we introduce the concept of ‘external coupling’ which connects agents across different networks as acquaintances, thereby facilitating access to shared datasets. Our results indicate that the combined positive effects of external coupling and incentive mechanism lead to optimal cooperation rates and lower Gini coefficients, demonstrating a negative correlation between cooperation and inequality. From a micro-level perspective, this phenomenon primarily arises from the regular network, whereas suboptimal outcomes are observed within the scale-free network. These observations help to give a deeper insight into the interplay between cooperation and wealth disparity in evolutionary games in large populations. |
| format | Article |
| id | doaj-art-0c103e3fee0449af8d0d0a6f27701b63 |
| institution | Kabale University |
| issn | 2632-072X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Journal of Physics: Complexity |
| spelling | doaj-art-0c103e3fee0449af8d0d0a6f27701b632025-01-23T12:28:55ZengIOP PublishingJournal of Physics: Complexity2632-072X2025-01-016101500310.1088/2632-072X/ada844Combined effect of incentives and coupling in multigames in two-layer networksLuo-Luo Jiang0https://orcid.org/0009-0003-6794-8517Yi-Ming Li1https://orcid.org/0009-0008-8140-8935Wen-Jing Li2https://orcid.org/0000-0002-6036-4442Attila Szolnoki3https://orcid.org/0000-0002-0907-0406School of Information Technology and Artificial Intelligence, Zhejiang University of Finance and Economics , Hangzhou 310018, People’s Republic of ChinaSchool of Information Technology and Artificial Intelligence, Zhejiang University of Finance and Economics , Hangzhou 310018, People’s Republic of ChinaCollege of Information Engineering, Zhejiang University of Water Resources and Electric Power , Hangzhou, Zhejiang 310018, People’s Republic of ChinaInstitute of Technical Physics and Materials Science, Centre for Energy Research , PO Box 49, H-1525 Budapest, HungaryThe lack of cooperation can easily result in inequality among members of a society, which provides an increasing gap between individual incomes. To tackle this issue, we introduce an incentive mechanism based on individual strategies and incomes, wherein a portion of the income from defectors is allocated to reward low-income cooperators, aiming to enhance cooperation by improving the equitable distribution of wealth across the entire population. Moreover, previous research has typically employed network structures or game mechanisms characterized by homogeneity. In this study, we present a network framework that more accurately reflects real-world conditions, where agents are engaged in multiple games, including prisoner’s dilemma games in the top-layer and public good games in the down-layer networks. Within this framework, we introduce the concept of ‘external coupling’ which connects agents across different networks as acquaintances, thereby facilitating access to shared datasets. Our results indicate that the combined positive effects of external coupling and incentive mechanism lead to optimal cooperation rates and lower Gini coefficients, demonstrating a negative correlation between cooperation and inequality. From a micro-level perspective, this phenomenon primarily arises from the regular network, whereas suboptimal outcomes are observed within the scale-free network. These observations help to give a deeper insight into the interplay between cooperation and wealth disparity in evolutionary games in large populations.https://doi.org/10.1088/2632-072X/ada844social dilemmascooperationmultigamesmulti-layer networks |
| spellingShingle | Luo-Luo Jiang Yi-Ming Li Wen-Jing Li Attila Szolnoki Combined effect of incentives and coupling in multigames in two-layer networks Journal of Physics: Complexity social dilemmas cooperation multigames multi-layer networks |
| title | Combined effect of incentives and coupling in multigames in two-layer networks |
| title_full | Combined effect of incentives and coupling in multigames in two-layer networks |
| title_fullStr | Combined effect of incentives and coupling in multigames in two-layer networks |
| title_full_unstemmed | Combined effect of incentives and coupling in multigames in two-layer networks |
| title_short | Combined effect of incentives and coupling in multigames in two-layer networks |
| title_sort | combined effect of incentives and coupling in multigames in two layer networks |
| topic | social dilemmas cooperation multigames multi-layer networks |
| url | https://doi.org/10.1088/2632-072X/ada844 |
| work_keys_str_mv | AT luoluojiang combinedeffectofincentivesandcouplinginmultigamesintwolayernetworks AT yimingli combinedeffectofincentivesandcouplinginmultigamesintwolayernetworks AT wenjingli combinedeffectofincentivesandcouplinginmultigamesintwolayernetworks AT attilaszolnoki combinedeffectofincentivesandcouplinginmultigamesintwolayernetworks |