scholarly journals An Adaptive Network Model to Simulate Consensus Formation Driven by Social Identity Recognition

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Kaiqi Zhang ◽  
Zinan Lv ◽  
Hai Feng Du ◽  
Honghui Zou

Models of the consensus of the individual state in social systems have been the subject of recent research studies in the physics literature. We investigate how network structures coevolve with the individual state under the framework of social identity theory. Also, we propose an adaptive network model to achieve state consensus or local structural adjustment of individuals by evaluating the homogeneity among them. Specifically, the similarity threshold significantly affects the evolution of the network with different initial conditions, and thus there emerges obvious community structure and polarization. More importantly, there exists a critical point of phase transition, at which the network may evolve into a significant community structure and state-consistent group.

Complexity ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-16 ◽  
Author(s):  
Markus Brede

In this paper we study the impact of active participation, or deliberately seeking out other agents with an aim of convincing them, on the dynamics of consensus formation. For this purpose, we propose an adaptive network model in which two processes shape opinion dynamics at interwoven time-scales as follows: (i) agents adapt their opinions subject to influence from social network neighbours who hold opinions within a tolerance interval δ and (ii) agents rewire network connections with an aim of maximizing their own influence on overall system opinion. We study this system both in an endogenous setting, in which all agents are subject to influence and also attempt to maximize influence, and in a setting of exogenous control, in which external agents not subject to influence adaptively attempt to maximize their influence. In both settings we find three regimes of stationary opinion configurations: (i) for low δ a regime of two evenly balanced radicalized opinion clusters at the extremes of the opinion space, (ii) for intermediate δ a ’winner-takes-most’ regime of two unevenly sized radicalized opinion clusters, and (iii) for large δ a regime in which very low spread compromise consensus states can be reached. Comparing to adaptive processes of random and deliberately spread-reducing rewiring, we demonstrate that in regime (iii) competitive influence maximization can achieve near-minimal opinion spread within near-optimal times. Further, we also show that competitive influence maximizing rewiring can reduce the impact of small influential minorities on consensus states.


2017 ◽  
Vol 1 (1) ◽  
pp. 15-31
Author(s):  
Francisco Xavier Morales

The problem of identity is an issue of contemporary society that is not only expressed in daily life concerns but also in discourses of politics and social movements. Nevertheless, the I and the needs of self-fulfillment usually are taken for granted. This paper offers thoughts regarding individual identity based on Niklas Luhmann’s systems theory. From this perspective, identity is not observed as a thing or as a subject, but rather as a “selfillusion” of a system of consciousness, which differentiates itself from the world, event after event, in a contingent way. As concerns the definition  of contents of self-identity, the structures of social systems define who is a person, how he or she should act, and how much esteem he or she should receive. These structures are adopted by consciousness as its own identity structures; however, some social contexts are more relevant for self-identity construction than others. Moral communication increases the probability that structure appropriation takes place, since the emotional element of identity is linked to the esteem/misesteem received by the individual from the interactions in which he or she participates.


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Tom Bartlett

AbstractThis paper opens with a problematisation of the notion of real-time in discourse analysis – dissected, as it is, as if time unfolded in a linear and regular procession at the speed of speech. To illustrate this point, the author combines Hasan’s concept of “relevant context” with Bakhtin’s notion of the chronotope to provide an analysis of Sorley MacLean’s poem Hallaig, with its deep-rootedness in space and its dissolution of time. The remainder of the paper is dedicated to following the poem’s metamorphoses and trajectory as it intertwines with Bartlett’s own life and family history, creating a layered simultaneity of meanings orienting to multiple semio-historic centres. In this way the author (pers. comm.) “sets out to illustrate in theory, text analysis and (self-)history the trajectories taken by texts as they cross through time and space; their interconnectedness with social systems at different scales; and the manner in which they are revoiced in order to enhance their legitimacy before the diverse audiences they encounter on their migratory paths.” In this process, Bartlett relates his own story to the socioeconomic concerns of the Hebridean island where his father was raised, and to dialogues between local communities and national and external policy-makers – so echoing Denzin’s call (2014. Interpretive Autoethnography (2nd Edition). Los Angeles: Sage: vii) to “develop a methodology that allows us examine how the private troubles of individuals are connected to public issues and to public responses to these troubles”. Bartlett presents his data through a range of legitimation strategies and voicing techniques, creating transgressive texts that question received notions of identity, authorship, legitimacy and authenticity in academia, the portals of power, and the routines of daily life. The current Abstract is one such example. As with the author’s closing caveat on the potential dangers of self-revelation, offered, no doubt, as a flimsy justification for the extensive focus in the paper on his own life as a chronotope, I leave it for the individual reader to decide if Bartlett’s approach is ultimately ludic or simply ludicrous.


2017 ◽  
Vol 23 (2) ◽  
pp. 674-698 ◽  
Author(s):  
Luciano Fanti ◽  
Luca Gori ◽  
Cristiana Mammana ◽  
Elisabetta Michetti

This article aims at studying a general equilibrium model with overlapping generations that incorporates inherited tastes (aspirations) and endogenous longevity. The existence of standard-of-living aspirations transmitted between two subsequent generations in a context where the individual state of health depends on public investments in health has some remarkable consequences at the macroeconomic level. First, aspirations allow escaping from the well-known poverty trap scenario described by Chakraborty (2004). Second, the steady-state equilibrium may be destabilized through a super-critical Neimark–Sacker bifurcation when the health tax rate is set at too high or too low a level. This causes endogenous fluctuations in income and longevity.


2016 ◽  
Vol 30 (3) ◽  
pp. 141-164 ◽  
Author(s):  
Roland Bénabou ◽  
Jean Tirole

In this paper, we provide a perspective into the main ideas and findings emerging from the growing literature on motivated beliefs and reasoning. This perspective emphasizes that beliefs often fulfill important psychological and functional needs of the individual. Economically relevant examples include confidence in ones' abilities, moral self-esteem, hope and anxiety reduction, social identity, political ideology, and religious faith. People thus hold certain beliefs in part because they attach value to them, as a result of some (usually implicit) tradeoff between accuracy and desirability. In a sense, we propose to treat beliefs as regular economic goods and assets—which people consume, invest in, reap returns from, and produce, using the informational inputs they receive or have access to. Such beliefs will be resistant to many forms of evidence, with individuals displaying non-Bayesian behaviors such as not wanting to know, wishful thinking, and reality denial.


2021 ◽  
pp. 000842982110042
Author(s):  
Alastair Hay

Two core lines of argument presently define our understanding of why Christianity’s historical influence continues to persist in the lives of Americans to a degree not observed in Canada (despite the recent loss of religious affiliation in both countries). These are: 1) changes in the functional dominance of social systems (i.e. shifts to the welfare state in Canada) and 2) important foundational, cultural differences between Canada and America. Using a historiographic approach (coupled with quantitative research conducted in Canada and the US), this article argues that one less well-recognized factor also deserves our attention: Charles Taylor’s observation that American religious culture was primed for the Age of Authenticity. In this article I argue that Taylor was probably right. Over and above the well-established individualistic character of the religious lives of Americans is a related, but important, additional effect—the sanctioning of the ‘this-worldly’ potential of the individual life from within its religious institutions. It is this aspect of America’s religious exceptionalism, I argue, that has also helped to render the religious lives of Americans less vulnerable to – but not immune from – the watershed effects of the sixties compared to Christianity in Canada.


Res Publica ◽  
1994 ◽  
Vol 36 (3-4) ◽  
pp. 343-359
Author(s):  
Marc Jacquemain ◽  
René Doutrelepont ◽  
Michel Vandekeere

At first view, the methodology of survey research may seem rather unsuitable to the study of such "holistic" phenomena as collective and social identities.  That difficulty vanishes - at least partly - as soon as we consider social identity as the link between the individual and his belongings, as does the "social identity theory", developed from the work of Taffel and Turner.  From there on, survey research may prove to be a useful device to cope with some main characteristics of social identity: mainly its variability among groups and classes within a same society and its particular sensitivity to socio-political contexts.  Survey research, combined with the social identity theory may help to test historical assumptions at a macro-social level. It may also give some ''flesh" and some additional realism to the micro-theories of social behaviour, which are too often limited by their conception of a strictly rational and interested agent.


2005 ◽  
Vol 128 (2) ◽  
pp. 259-270 ◽  
Author(s):  
Preethi L. Chandran ◽  
Victor H. Barocas

The microstructure of tissues and tissue equivalents (TEs) plays a critical role in determining the mechanical properties thereof. One of the key challenges in constitutive modeling of TEs is incorporating the kinematics at both the macroscopic and the microscopic scale. Models of fibrous microstructure commonly assume fibrils to move homogeneously, that is affine with the macroscopic deformation. While intuitive for situations of fibril-matrix load transfer, the relevance of the affine assumption is less clear when primary load transfer is from fibril to fibril. The microstructure of TEs is a hydrated network of collagen fibrils, making its microstructural kinematics an open question. Numerical simulation of uniaxial extensile behavior in planar TE networks was performed with fibril kinematics dictated by the network model and by the affine model. The average fibril orientation evolved similarly with strain for both models. The individual fibril kinematics, however, were markedly different. There was no correlation between fibril strain and orientation in the network model, and fibril strains were contained by extensive reorientation. As a result, the macroscopic stress given by the network model was roughly threefold lower than the affine model. Also, the network model showed a toe region, where fibril reorientation precluded the development of significant fibril strain. We conclude that network fibril kinematics are not governed by affine principles, an important consideration in the understanding of tissue and TE mechanics, especially when load bearing is primarily by an interconnected fibril network.


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