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Please use this identifier to cite or link to this item: http://hdl.handle.net/10400.5/4570

Title: Who replaces whom? : local versus non-local replacement in social and evolutionary dynamics
Authors: Banisch, Sven
Araújo, Tanya
Keywords: Emergence
Self-organization
Agent-based models
Speciation
Markov chains
Issue Date: 2012
Publisher: Instituto Superior de Economia e Gestão - Departamento de Economia
Citation: Sven Banisch, Tanya Araújo. 2012. "Who replaces whom? : local versus non-local replacement in social and evolutionary dynamics". Instituto Superior de Economia e Gestão - ISEG/DE working papers nº 20/2012/DE/UECE.
Series/Report no.: ISEG/DE working papers;nº 20/2012/DE/UECE
Abstract: In this paper, we inspect well-known population genetics and social dynamics models. In these models, interacting individuals, while participating in a self-organizing process, give rise to the emergence of complex behaviors and patterns. While one main focus in population genetics is on the adaptative behavior of a population, social dynamics is more often concerned with the splitting of a connected array of individuals into a state of global polarization, that is, the emergence of speciation. Applying computational and mathematical tools we show that the way the mechanisms of selection, interaction and replacement are constrained and combined in the modeling have an important bearing on both adaptation and the emergence of speciation. Differently (un)constraining the mechanism of individual replacement provides the conditions required for either speciation or adaptation, since these features appear as two opposing phenomena, not achieved by one and the same model. Even though natural selection, operating as an external, environmental mechanism, is neither necessary nor sufficient for the creation of speciation, our modeling exercises highlight the important role played by natural selection in the interplay of the evolutionary and the self-organization modeling methodologies.
URI: http://hdl.handle.net/10400.5/4570
ISSN: 0874-4548
Publisher version: https://aquila.iseg.utl.pt/aquila/getFile.do?method=getFile&fileId=280584&contentContextPath_PATH=/departamentos/ec/lateral/menu-working-papers/nova-serie/2012&_request_checksum_=1a0fe454e6a52e3a8db5b97d14b0a782e3f74dba
Appears in Collections:UECE - Documentos de Trabalho / UECE - Working Papers
DE - Documentos de trabalho / Working Papers

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