Collective emotions online and their influence on community life

E-communities, social groups interacting online, have recently become an object of interdisciplinary research. As with face-to-face meetings, Internet exchanges may not only include factual information but also emotional information - how participants feel about the subject discussed or other group members. Emotions are known to be important in affecting interaction partners in offline communication in many ways. Could emotions in Internet exchanges affect others and systematically influence quantitative and qualitative aspects of the trajectory of e-communities? The development of automatic sentiment analysis has made large scale emotion detection and analysis possible using text messages collected from the web. It is not clear if emotions in e-communities primarily derive from individual group members' personalities or if they result from intra-group interactions, and whether they influence group activities. We show the collective character of affective phenomena on a large scale as observed in 4 million posts downloaded from Blogs, Digg and BBC forums. To test whether the emotions of a community member may influence the emotions of others, posts were grouped into clusters of messages with similar emotional valences. The frequency of long clusters was much higher than it would be if emotions occurred at random. Distributions for cluster lengths can be explained by preferential processes because conditional probabilities for consecutive messages grow as a power law with cluster length. For BBC forum threads, average discussion lengths were higher for larger values of absolute average emotional valence in the first ten comments and the average amount of emotion in messages fell during discussions. Our results prove that collective emotional states can be created and modulated via Internet communication and that emotional expressiveness is the fuel that sustains some e-communities.Comment: 23 pages including Supporting Information, accepted to PLoS ON

THE INSTITUTIONALIZATION OF VIRTUAL COMMUNITIES: HOW INSTITUTIONAL CARRIERS INFLUENCE ONLINE GOVERNANCE STRUCTURES

This research investigates how institutional carriers – from rules and power systems to cognitive schemas and information technology – influence the reproduction of centralized decision-making governance structures in virtual communities. Studying a group of four virtual communities, the findings show that community members invoke a variety of institutional carriers in order to try to legitimate actual centralized governance structures, which contradict their stated intentions of building decentralized decision making. The research illustrates in the micro-level how an institutionalized social structure is seen as meaningful by social actors in spite of being the opposite of what community members would rhetorically defend. The study explores how institutional carriers become sanction and legitimating mechanisms, which influence the reproduction of institutionalized behavior in virtual interactions, concluding on the relevance of understanding the institutional context to make sense of behavior patterns, which emerge from interactions in online environments in general and virtual communities in particular

Solvation force for long ranged wall-fluid potentials

The solvation force of a simple fluid confined between identical planar walls is studied in two model systems with short ranged fluid-fluid interactions and long ranged wall-fluid potentials decaying as $-Az^{-p}, z\to \infty$, for various values of $p$. Results for the Ising spins system are obtained in two dimensions at vanishing bulk magnetic field $h=0$ by means of the density-matrix renormalization-group method; results for the truncated Lennard-Jones (LJ) fluid are obtained within the nonlocal density functional theory. At low temperatures the solvation force $f_{solv}$ for the Ising film is repulsive and decays for large wall separations $L$ in the same fashion as the boundary field $f_{solv}\sim L^{-p}$, whereas for temperatures larger than the bulk critical temperature $f_{solv}$ is attractive and the asymptotic decay is $f_{solv}\sim L^{-(p+1)}$. For the LJ fluid system $f_{solv}$ is always repulsive away from the critical region and decays for large $L$ with the the same power law as the wall-fluid potential. We discuss the influence of the critical Casimir effect and of capillary condensation on the behaviour of the solvation force.Comment: 48 pages, 12 figure

THE IMPACT OF SOCIAL POWER ON TRANSACTIVE MEMORY SYSTEMS AND KNOWLEDGE UTILIZATION

Many organizations have attempted to develop knowledge management strategies through which they can substantially enhance their employees’ ability to utilize knowledge resources dispersed across business units. While previous studies have acknowledged that social power is one of the critical factors in facilitating or constraining social interactions among individuals, few studies have examined in-depth how social power within a work group influences an individual’s knowledge utilization. Given that social power in an organization determines the processes of recognizing others’ knowledge and applying it to real business, the investigation of the influence of social power on knowledge utilization is of value to researchers and practitioners. Integrating the volitional model and the theory of social power, this study develops a theoretical model that explains how social power influences individuals’ affect, transactive memory system (TMS), and knowledge utilization. The proposed model was tested using data collected from 206 individuals. The results of this study show that social power significantly influences an individual’s affect and TMS, which in turn influences intention to utilize knowledge. Notably, this study reveals that different power bases have different effects on individuals’ cognitive (TMS levels) and emotional (positive affect) aspects in relation to knowledge utilization in organizations

The Mass Psychology of Classroom Discourse

In a majority of cases observed in classrooms over the last several decades, what has gone by the name “discussion” is not discussion, but rather an interaction better known as recitation. If one sees this phenomenon as a problem, then an aspect of its resolution must be theoretical (as opposed to empirical or pedagogical): What series of conceptual terms might we adopt such that recitation does not pass for discussion? Such a theoretical response would have to address internal and external, or subjective and intersubjective, phenomena to describe what it means to participate in an interaction like discussion or recitation. Next the theory would have to explain the differences between interactions such as discussion and recitation in robust terms. Finally, these robust differences would have to prevent the “mistaking” of discussion for recitation, and vice versa. David Backer sets out to accomplish these three goals in the following essay. The theory he builds relies on a distinction between two psychological-affective states: dehiscence and melancholia. Backer argues that recitation forms a mass through melancholic introjection of a single object, while discussion forms a group that dehiscently introjects no particular object at all. The chief finding of this essay is that viewing discussion and recitation through the mass-psychological lens offers a new way to examine what kind of relations of influence and power form during classroom discourse and, specifically, the political significance of those discourses

Regionalism and African agency : negotiating an Economic Partnership Agreement between the European Union and SADC-Minus

This article investigates the regional dynamics of African agency in the case of negotiations for an Economic Partnership Agreement (EPA) between the EU and a group of Southern African countries, known as SADC-Minus. I argue that these negotiations were shaped by a pattern of differentiated responses to the choice set on offer under the EPAs by SADC-Minus policymakers and by a series of strategic interactions and power plays between them. I offer two contributions to an emerging literature on the role of African agency in international politics. First, I argue for a clear separation between ontological claims about the structure-agency relationship and empirical questions about the preferences, strategies and influence of African actors. Second, I suggest that in order to understand the regional dynamics of African agency it is important to pay close attention to the diversity and contingency of African preferences and to the role of both power politics and rhetorical contestation in regional political processes

Structural power and the evolution of collective fairness in social networks

From work contracts and group buying platforms to political coalitions and international climate and economical summits, often individuals assemble in groups that must collectively reach decisions that may favor each part unequally. Here we quantify to which extent our network ties promote the evolution of collective fairness in group interactions, modeled by means of Multiplayer Ultimatum Games (MUG). We show that a single topological feature of social networks-which we call structural power-has a profound impact on the tendency of individuals to take decisions that favor each part equally. Increased fair outcomes are attained whenever structural power is high, such that the networks that tie individuals allow them to meet the same partners in different groups, thus providing the opportunity to strongly influence each other. On the other hand, the absence of such close peer-influence relationships dismisses any positive effect created by the network. Interestingly, we show that increasing the structural power of a network leads to the appearance of well-defined modules-as found in human social networks that often exhibit community structure-providing an interaction environment that maximizes collective fairness.This research was supported by Fundacao para a Ciencia e Tecnologia (FCT) through grants SFRH/BD/94736/2013, PTDC/EEI-SII/5081/2014, PTDC/MAT/STA/3358/2014 and by multi-annual funding of CBMA and INESC-ID (under the projects UID/BIA/04050/2013 and UID/CEC/50021/2013) provided by FCT. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.info:eu-repo/semantics/publishedVersio

European Parliament’s Political Groups in Turbulent Times

This open access book provides the first ever authoritative collection of scholarly insights, based upon original research, into the political groups of the EP tackling the fundamental changes since the Lisbon Treaty and the upsurge of radical right parties. It analyses political groups and their importance from multiple perspectives critically assessing their role and significance in EU politics. Each chapter is authored by leading scholars in the field, working on key topics in relation to political groups: political group formation and function, their role in parliamentary and EU policy-making, the way that Eurosceptic MEPs influence (or not) the Parliament, and the nature and form of interactions with external actors. In doing so, each chapter opens hitherto unexplored ‘black boxes’ in the political work of the EP, such as the internal practices of, and power relations within the political groups, and informal arenas of intra-group decision-making