46 citations · 46 across the 2 of their papers we have counts for
8 papers · 1 filter
Invasion of optimal social contracts
Alessandra F. Lütz, Marco Antonio Amaral, Ian Braga +1
The Stag-hunt game is a prototype for social contracts. Adopting a new and better social contract is usually challenging because the current one is already widely adopted and stabl…
Moderate immigration may promote a peak of cooperation among natives
Alessandra Friedrich Lütz, Marco Antonio Amaral, Lucas Wardil
In a world of hardening borders, nations may deprive themselves of enjoying the benefits of cooperative immigrants. Here, we analyze the effect of efficient cooperative immigrants…
Skepticism and rumor spreading: the role of spatial correlations
Marco Antonio Amaral, W. G. Dantas, Jeferson J. Arenzon
Critical thinking and skepticism are fundamental mechanisms that one may use to prevent the spreading of rumors, fake-news and misinformation. We consider a simple model in which a…
Strategy equilibrium in dilemma games with off-diagonal payoff perturbations
Marco A. Amaral, Marco A. Javarone
We analyse the strategy equilibrium of dilemma games considering a payoff matrix affected by small and random perturbations on the off-diagonal. Notably, a recent work [1] reported…
Heterogeneity in evolutionary games: an analysis of the risk perception
Marco A. Amaral, Marco A. Javarone
In this work, we analyse the relationship between heterogeneity and cooperation. Previous investigations suggest that this relation is nontrivial, as some authors found that hetero…
Rumor propagation meets skepticism: a parallel with zombies
Marco Antonio Amaral, Jeferson J. Arenzon
We propose a model of rumor spreading in which susceptible, but skeptically oriented individuals may oppose the rumor. Resistance may be implemented either by skeptical activists t…