Project/scholarship details
- Project/scholarship ID
135581
- Reference
EXPL/EEI-SII/2556/2013
- FundRef URI
- Funder
FCT - Fundação para a Ciência e a Tecnologia, I.P.
- Funder's country
Portugal
- Funding program
3599-PPCDT
- Funding amount
34,494.00 €
- Start date
2014-03-01
- End date
2015-08-31
Documents
Origin of peer influence in social networks
Pinheiro, Flávio L.; Santos, Marta D.; Santos, Francisco C.; Pacheco, Jorge Manuel SantosSocial networks pervade our everyday lives: we interact, influence, and are influenced by our friends and acquaintances. With the advent of the World Wide Web, large amounts of data on social networks have become available, allowing the quantitative analysis of the distribution of information on them, including behavioral traits and fads. Recent studies of correlations among members of a social network, who exh...
Evolution of all-or-none strategies in repeated public goods dilemmas
Pinheiro, Flávio L.; Vasconcelos, Vítor V.; Santos, Francisco C.; Pacheco, Jorge Manuel SantosMany problems of cooperation involve repeated interactions among the same groups of individuals. When collective action is at stake, groups often engage in Public Goods Games (PGG), where individuals contribute (or not) to a common pool, subsequently sharing the resources. Such scenarios of repeated group interactions materialize situations in which direct reciprocation to groups may be at work. Here we study d...
Crime as a complex system Comment on "Statistical physics of crime: A review" b...
Pacheco, Jorge Manuel Santos[Excerpt] Maria R. D'Orsogna and Matjaž Perc [1] summarize, in this review, a growing body of research that applies mathematical methods, some of which originating in statistical physics, to the understanding of the emergence and diffusion of crime. As they state, our understanding of the mechanisms underlying the emergence and diffusion of crime is very limited, particularly when quantitative models are consid...
Co-evolutionary dynamics of collective action with signaling for a quorum
Pacheco, Jorge Manuel Santos; Vasconcelos, Vitor V.; Santos, Francisco C.; Skyrms, BrianCollective signaling for a quorum is found in a wide range of organisms that face collective action problems whose successful solution requires the participation of some quorum of the individuals present. These range from humans, to social insects, to bacteria. The mechanisms involved, the quorum required, and the size of the group may vary. Here we address the general question of the evolution of collective si...
Cooperation dynamics of polycentric climate governance
Vasconcelos, Vitor V.; Santos, Francisco C.; Pacheco, Jorge Manuel SantosGlobal coordination for the preservation of a common good, such as climate, is one of the most prominent challenges of modern societies. In this manuscript, we use the framework of evolutionary game theory to investigate whether a polycentric structure of multiple small-scale agreements provides a viable solution to solve global dilemmas as climate change governance. We review a stochastic model which incorpora...
Evolutionary dynamics of group fairness
Santos, Fernando P.; Santos, Francisco C.; Paiva, Ana; Pacheco, Jorge Manuel SantosThe emergence and impact of fairness is commonly studied in the context of 2-person games, notably the Ultimatum Game. Often, however, humans face problems of collective action involving more than two individuals where fairness is known to play a very important role, and whose dynamics cannot be inferred from what is known from 2-person games. Here, we propose a generalization of the Ultimatum Game for an arbit...
Evolutionary dynamics of collective index insurance
Pacheco, Jorge Manuel Santos; Santos, Francisco C.; Levin, Simon A.Index-based insurances offer promising opportunities for climate-risk investments in developing countries. Indeed, contracts conditional on, e.g., weather or livestock indexes can be cheaper to set up than conventional indemnity-based insurances, while offering a safety net to vulnerable households, allowing them to eventually escape poverty traps. Moreover, transaction costs by insurance companies may be addit...
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