2 papers
cs.GT2025
The Evolution of Trust under Institutional Moral Hazard
Hiroaki Chiba-Okabe, Joshua B. Plotkin
We study the behavior of for-profit institutions that broadcast reputations to foster trust among market participants. We develop a theoretical model in which buyers and sellers ar…
physics.soc-ph2024
Social learning with complex contagion
Hiroaki Chiba-Okabe, Joshua B. Plotkin
We introduce a mathematical model that combines the concepts of complex contagion with payoff-biased imitation, to describe how social behaviors spread through a population. Tradit…