The Structural Embeddedness of Collective Goods: Connection and Coalitions in Exchange Networks

2005 ◽  
Vol 23 (4) ◽  
pp. 386-407 ◽  
Author(s):  
Brent Simpson ◽  
David Willer

The growing body of literature on coalitions in exchange networks has addressed issues such as the kind of social dilemmas posed and how structurally disadvantaged actors overcome free-rider problems. We add to this stream of research by focusing explicitly on what low-power actors can gain from collective action. We offer theory that predicts whether actors can gain a collective good by forming coalitions and, if so, the size of that good, for all types of network connection. The results from new experiments yield strong support for the predictions. Results show that (1) collective goods are latent in some, but not all, types of exchange structures; (2) when present, collective good size is determined by connection type; and (3) these goods are made manifest through collective action. Among other phenomena, the theory explains why networks that generate identical exchange ratios when participants act independently can produce different size collective goods when they act collectively. This article concludes with a discussion of implications, limitations, and directions for future research.

1987 ◽  
Vol 3 (2) ◽  
pp. 245-273 ◽  
Author(s):  
Jean Hampton

There has been a persistent tendency to identify what is called “the freerider problem” in the production of collective (or public) goods with the prisoner's dilemma. However, in this article I want to challenge that identification by presenting an analysis of what are in fact a variety of collective action problems in the production of collective goods. My strategy is not to consult any intuitions about what the free-rider problem is; rather I will be looking at the problematic game-theoretic structures of various situations associated with the production of different types of collective goods, thereby showing what sorts of difficulties a community concerned with their voluntary production would face. I call all of these dilemmas free-rider problems because in all of them certain individuals find it rational to take advantage of others' willingness to contribute to the good in a way that threatens its production. Some readers may feel that the term ‘free-rider problem’ is so identified with the prisoner's dilemma that my extension of the term in this way “jars”; if so, I invite them to coin another word for the larger phenomenon. My aim is not to engage in linguistic analysis but to attempt at least a partial analysis of the complicated structure of collective good production.


Author(s):  
Michelle A. Frazer ◽  
Yesenia Cabrera ◽  
Rockelle S. Guthrie ◽  
Gina R. Poe

Abstract Purpose of review This paper reviews all optogenetic studies that directly test various sleep states, traits, and circuit-level activity profiles for the consolidation of different learning tasks. Recent findings Inhibiting or exciting neurons involved either in the production of sleep states or in the encoding and consolidation of memories reveals sleep states and traits that are essential for memory. REM sleep, NREM sleep, and the N2 transition to REM (characterized by sleep spindles) are integral to memory consolidation. Neural activity during sharp-wave ripples, slow oscillations, theta waves, and spindles are the mediators of this process. Summary These studies lend strong support to the hypothesis that sleep is essential to the consolidation of memories from the hippocampus and the consolidation of motor learning which does not necessarily involve the hippocampus. Future research can further probe the types of memory dependent on sleep-related traits and on the neurotransmitters and neuromodulators required.


2020 ◽  
pp. 136843022097475
Author(s):  
Samuel Hansen Freel ◽  
Rezarta Bilali ◽  
Erin Brooke Godfrey

In a three-wave longitudinal study conducted in the first 100 days of Trump’s presidency, this paper examines how people come to self-categorize into the emerging social movement “the Resistance,” and how self-categorization into this movement influences future participation in collective action and perceptions of the movement’s efficacy. Conventional collective action (e.g., protest, lobby legislators)—but not persuasive collective action (e.g., posting on social media)—and perceived identity consolidation efficacy of the movement at Wave 1 predicted a higher likelihood of self-categorization into the movement 1 month later (Wave 2) and 2 months later (Wave 3). Self-categorization into the Resistance predicted two types of higher subsequent movement efficacy perceptions, and helped sustain the effects of conventional collective action and movement efficacy beliefs at Wave 1 on efficacy beliefs at Wave 3. Implications for theory and future research on emerging social movements are discussed.


2021 ◽  
pp. 095679762097056
Author(s):  
Morgana Lizzio-Wilson ◽  
Emma F. Thomas ◽  
Winnifred R. Louis ◽  
Brittany Wilcockson ◽  
Catherine E. Amiot ◽  
...  

Extensive research has identified factors influencing collective-action participation. However, less is known about how collective-action outcomes (i.e., success and failure) shape engagement in social movements over time. Using data collected before and after the 2017 marriage-equality debate in Australia, we conducted a latent profile analysis that indicated that success unified supporters of change ( n = 420), whereas failure created subgroups among opponents ( n = 419), reflecting four divergent responses: disengagement (resigned acceptors), moderate disengagement and continued investment (moderates), and renewed commitment to the cause using similar strategies (stay-the-course opponents) or new strategies (innovators). Resigned acceptors were least inclined to act following failure, whereas innovators were generally more likely to engage in conventional action and justify using radical action relative to the other profiles. These divergent reactions were predicted by differing baseline levels of social identification, group efficacy, and anger. Collective-action outcomes dynamically shape participation in social movements; this is an important direction for future research.


2021 ◽  
pp. 026988112110264
Author(s):  
Emma Kopra ◽  
Valeria Mondelli ◽  
Carmine Pariante ◽  
Naghmeh Nikkheslat

Background: Ketamine is a novel rapid-acting antidepressant with high efficacy in treatment-resistant patients. Its exact therapeutic mechanisms of action are unclear; however, in recent years its anti-inflammatory properties and subsequent downstream effects on tryptophan (TRP) metabolism have sparked research interest. Aim: This systematic review examined the effect of ketamine on inflammatory markers and TRP–kynurenine (KYN) pathway metabolites in patients with unipolar and bipolar depression and in animal models of depression. Methods: MEDLINE, Embase, and PsycINFO databases were searched on October 2020 (1806 to 2020). Results: Out of 807 initial results, nine human studies and 22 animal studies on rodents met the inclusion criteria. Rodent studies provided strong support for ketamine-induced decreases in pro-inflammatory cytokines, namely in interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF)-α and indicated anti-inflammatory effects on TRP metabolism, including decreases in the enzyme indoleamine 2,3-dioxygenase (IDO). Clinical evidence was less robust with high heterogeneity between sample characteristics, but most experiments demonstrated decreases in peripheral inflammation including in IL-1β, IL-6, and TNF-α. Preliminary support was also found for reduced activation of the neurotoxic arm of the KYN pathway. Conclusion: Ketamine appears to induce anti-inflammatory effects in at least a proportion of depressed patients. Suggestions for future research include investigation of markers in the central nervous system and examination of clinical relevance of inflammatory changes.


2009 ◽  
Vol 5 (3) ◽  
pp. 315-338 ◽  
Author(s):  
HELENA LOPES ◽  
ANA C. SANTOS ◽  
NUNO TELES

Abstract:This paper aims to contribute to a better understanding of cooperation in productive ventures, conceived of as collective action endeavours that require cooperation rather than mere coordination. It is argued that cooperative behaviour is grounded on three kinds of ‘common goods’, defined as goods that are shared and recognized as beneficial by the workers. These comprise common goals, relational satisfaction, and moral norms and values. The commonly held goods are associated with motives and behavioural rules which constitute both the reasons for cooperating and the means through which the dilemmatic nature of cooperation is overcome. It is further argued that the binding character of these rules is closely linked to humans’ ability and opportunity to communicate. Normative guidelines relative to management practices and directions for future research are also derived.


Author(s):  
Craig R. Scott ◽  
C. Erik Timmerman

Although various technologies are widely used to support decision-making teams, we know relatively little about the use of specialized Electronic Meeting Systems (EMSs) and their use over time during ongoing projects. This study addresses that gap by examining how communication affordances (anonymous communication, participation equality, and influence equality) of some EMSs may change with repeated usage of the system for multiple decision-making meetings. Based on an EMS process model and related theories, the authors hypothesize that communicative benefits will decline after initial team interaction. Data from 14 intact decision-making teams (using an EMS for 3 separate meetings) provide strong support for most of the anonymity hypotheses, as perceptions of self and other anonymity decline and confidence in source attributions increases with repeated usage. There was partial support for the predicted changes in participation equality and influence equality. The authors conclude with practical implications and future research directions based on these findings.


Author(s):  
Davide Mazzoni ◽  
Augusta Isabella Alberici

Despite the relevance of the topic, an exhaustive psychosocial reflection on the processes that may facilitate patients' protest is still missing. The chapter provides a theoretical and empirical overview of psychosocial pathways for patients' collective action. Five core factors are reviewed: perceived injustice, group efficacy, group identification, moral convictions and social embeddedness. Each of them provides a different explanation of collective action processes and is examined for its potential impact among patients. The chapter closes suggesting some core elements for a theoretical explanation of patients' collective action and its relationship with patient engagement. Practical and theoretical implications of patients' collective action are discussed to identify new directions for future research and interventions.


Author(s):  
Jia Shen ◽  
Lauren B. Eder

Social commerce is the latest development in e-commerce to combine the power of online social networking with shopping. While the adoption of information technology is well studied, new theoretical development is needed to account for the specific characteristics of social commerce applications and their interactions with the user. This study examines factors that are associated with user acceptance of social shopping websites, which are sites designed specifically to support social interactions while users shop. This paper augments the Technology Acceptance Model with constructs that enhance the specificity of the model to the social shopping application of social commerce, including social comparison, social engagement, enjoyment as well as perceived ease of use and perceived usefulness. The model was empirically tested, and the results provided strong support. Implications and directions for future research are also discussed.


2020 ◽  
Vol 12 (9) ◽  
pp. 3580
Author(s):  
Shiferaw Tafesse ◽  
Rico Lie ◽  
Barbara van Mierlo ◽  
Paul C. Struik ◽  
Berga Lemaga ◽  
...  

Collective action is required to deal with various complex agricultural problems such as invasive weeds and plant diseases that pose a collective risk to farmers. Monitoring systems could help to stimulate collective action and avoid free-riding. The paper develops a novel framework consisting of essential elements of a monitoring system for managing a complex disease like bacterial wilt in potato crops. The framework is used to explore how seed potato cooperatives in Ethiopia operationalised the essential elements of a monitoring system and identifies which challenges remain to be overcome. Data were collected through in-depth interviews, reflective workshops, participant observation, and document analysis. We found that the cooperatives had organised a self-monitoring system to monitor disease occurrence and the disease management practices of their members. Monitoring committees were in charge of the data collection and enforcement of sanctions on farmers who did not adhere to the cooperatives’ bylaws. The main challenges included the dependency on visual observation, which does not disclose latent infections, limited financial incentives for the monitoring committee members, lack of trust, weak peer monitoring, and the social and ecological interdependency between producers of ware and seed potatoes. Suggestions are provided to strengthen the monitoring systems of farmers’ seed potato cooperatives in Ethiopia. In addition, we discuss the broader value of our novel framework for describing and analysing monitoring systems for future research and intervention.


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