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From the structural perspective of social‐capital theory, this research investigates how a team's social‐network relationships affect its performance. More specifically, it concerns the type of work‐group‐internal connectedness in instrumental and expressive networks that is associated with enhanced team performance, and whether knowledge mediates these effects.

The research was survey based, involving 76 work teams and a total of 499 employees in 48 organisations. The work teams carried out fairly knowledge‐intensive but only moderately complex tasks, some of which were routine in nature.

Both dense and fragmented instrumental‐network structures affect work‐team performance. However, fragmentation in expressive networks has a negative impact. Furthermore, the mediation results give empirical support to the implicit understanding that only instrumental networks transfer knowledge, especially if they are dense.

The results indicate that social‐network relationships affect team performance and also provide access to social capital (here knowledge). However, instrumental and expressive networks differ in terms of theoretical and practical implications. Future research could overcome the limitations of this study through increasing the sample size and focusing on much more fine‐grained intervening mechanisms (here knowledge sharing).

The recommendation to managers is to stimulate dense instrumental relationships in order to facilitate knowledge sharing and avoid overly fragmented expressive relationships.

First, in examining the social structure of both instrumental and expressive relationships this study responds to the growing call in organisational theory for research into the social content of social networks. Second, the contribution of this research paper lies in directly testing whether team knowledge mediates the effects of advice‐network structures on team performance.

The aim of this study is to explore the role of social tie content in the interpersonal knowledge transfer process and to test the effects of different social ties, i.e. distinguishing instrumental tie and expressive tie, on knowledge transfer, using cognition‐ and affect‐based trust as the mediators.

A theoretical model was tested through a survey carried out on 152 MBA students of a university in east China, and structural equation modelling (SEM) was employed for data analysis.

This research proved that both instrumental and expressive ties will facilitate trust and knowledge transfer. Cognition‐based trust is not essential when low‐tacit, general knowledge is transferred, and the effect of the expressive tie becomes negative when trust is controlled. When transferring general knowledge the instrumental tie is more efficient. However, contrary to the hypothesis, it is found that the effect of the expressive tie is not significantly larger than that of the instrumental tie during the tacit knowledge transfer process.

Besides tacitness, future research may consider involving more dimensions of knowledge into the theoretical model. Longitudinal and cross‐national studies are also needed.

The paper suggests that managers can enhance knowledge transfer among co‐workers by enhancing their instrumental and expressive ties. However, overuse of the expressive tie is risky. The importance of trust construction in organizations is also underscored.

The study reminds scholars to pay attention to the role of tie content in knowledge transfer. The findings also help managers to know how to increase knowledge transfer through promoting intra‐organizational networking.

The purpose of this paper is to investigate how four enterprise social media (ESM) affordances (visibility, association, editability and persistence) affect social network ties (instrumental and expressive), which, in turn, influence the in-role and innovative job performance of employees.

A survey of 251 ESM users in the workplace in China was conducted.

All four affordances are positively associated with instrumental ties, yet only the association and editability affordances are positively related to expressive ties. Although instrumental and expressive ties are positively related to in-role and innovative job performance, instrumental ties exert stronger effects on in-role job performance, whereas expressive ties show stronger effects on innovative job performance.

First, additional relevant affordances should be included in an expanded model. Second, future research could examine how patterns of affordances use (unrelated, or hierarchically or sequentially related) affect organizational network ties. Third, there are likely (many) other exogenous factors affecting the model’s relationships. Fourth, the data collected are self-reported.

This study advances the theoretical understanding of the role of ESM affordances in the workplace, especially through their influences on network ties. The findings can guide organizations on how to emphasize ESM affordances to foster instrumental and expressive ties to improve the job performance of employees.

First, it provides novel views on affordance theory in ESM contexts by empirically testing four central affordances, thereby further providing preliminary evidence for prior theoretical propositions by confirming that social media affordances might be associated with or influence relational ties. Second, the study integrates an affordance lens and a social network perspective to investigate employees’ perceived performance behavior. Including social network ties can offer a more detailed understanding of the underlying processes of how ESM affordances can and do affect job performance. Third, it supports the validity of distinguishing instrumental and expressive ties in ESM contexts, thus offering a possible explanation for the inconsistencies in prior research on the impact of social networks on employee outcomes. Finally, it also shows how two kinds of organizational performance (in-role and innovative) are somewhat differentially influenced by affordances and network ties.

The study investigated the relationship of career instrumental and expressive intra‐organizational network resources with extrinsic and intrinsic career success and with the Big‐Five of personality in a sample of 264 white‐collar workers. Total network resources were associated with extrinsic and intrinsic career success above the contribution of human capital, demographics and mentoring received. And instrumental network resources contributed more strongly than expressive network resources to extrinsic career success. Furthermore, instrumental network resources emerged as important for intrinsic evaluations of hierarchical and interpersonal career success while expressive network resources emerged as important for intrinsic evaluations of job and interpersonal career success. There was limited support for the influence of personality on the accumulation of network resources. As hypothesized, conscientiousness was negatively associated with instrumental network resources; however, extra‐version, openness and agreeableness failed to make significant contributions to network resources over and above the contribution of human capital and demographics. The implications of the findings for individual career tactics and for organizational practices are discussed and the limitations of the study are considered along with directions for future research.

This study aims to examine the relationship between social influence and consumers’ self-expression through brands. It considers susceptibility to interpersonal influence and social network influence on self-expressive brands and brand tribalism. The study examines whether self-expressive brands and brand tribalism influence brand loyalty and word of mouth (WOM).

A cross-sectional online survey was carried out with members of Generation Y in Ireland. Data from 675 complete responses were analysed using SPSS 20 and AMOS 20. A structural model tested nine hypothesised relationships.

Findings indicate that both online social network influence and susceptibility to interpersonal influence are antecedents of tribalism and self-expressive brands. Consumers of self-expressive brands are loyal and offer positive WOM. By contrast, those who seek tribal membership have less brand loyalty and offer less WOM than other consumers. Findings suggest that consumers may be loyal to tribes, rather than to brands. This informs our understanding of the role of tribes for consumers and brand outcomes.

This study is limited to Generation Y consumers within Ireland.

This is the first study to explore the effect of consumers’ perceptions about online social network influence on brand tribalism. In addition, their views about the influence of the social network on self-expressive brand consumption, and brand outcomes, are identified. This paper highlights consumers’ susceptibility to interpersonal influence on their brand choices and brand tribalism. In addition, it is shown that brand loyalty and WOM are not always a consequence of tribal membership. By contrast, self-expressive brand consumption enhances brand WOM and brand loyalty.

Taking a network approach, the purpose of this paper is to investigate the social antecedents of work-related engagement and exhaustion in a sample of Dutch healthcare workers, examining how employees’ structural position in the team (i.e. their centrality in the network) is associated with their engagement and exhaustion. Distinctions are made between instrumental networks (i.e. structural dependencies) and expressive networks (i.e. emotional connectedness through friendships).

Associations between job characteristics (quantitative demands, emotional demands and influence) and employees’ centrality in the instrumental and expressive networks at work with their self-reported engagement and exhaustion were examined. Network centrality was assessed though a sociometric survey by the total number of nominations each employee received (in-degree centrality) or gave (out-degree centrality) and for both networks separately.

The results show that whereas job characteristics but not network centrality were associated with exhaustion, network centrality in the expressive network but not job characteristics was associated with engagement. In-degree centrality (being nominated by many co-workers as a friend) was positively associated with engagement, whereas out-degree centrality (nominating many co-workers as a friend) was negatively associated with engagement.

The results support recent findings concerning more multifaceted antecedents of engagement and exhaustion, and underline the importance considering social network characteristics in investigations of work engagement. On a methodological level, the differing results for in-degree and out-degree centrality underline the importance of not only relying on self-reported social relationships but to also capture other-reported data.

The social and cultural duality perspective suggests dual ordering of interpersonal ties and cultural similarities. Studies to date primarily focus on cultural similarities in interpersonal dyads driven by principles such as homophily and contagion. We aim to extend these principles for sociocultural networks and investigate potentially competing micro-principles that generate these networks, taking into account not only direct dyadic overlap between interpersonal ties and cultural structures, but also the indirect interplay between the social and the cultural.

The empirical analysis utilizes social and semantic network data gathered through ethnographic studies of five creative organizations around Europe. We apply exponential random graph models (ERGMs) for multiplex networks to model the simultaneous operation of several generative principles of sociocultural structuring yielding multiplex dyads and triads that combine interpersonal ties with meaning sharing links.

The results suggest that in addition to the direct overlap of shared meanings and interpersonal ties, sociocultural structure formation is also affected by extra-dyadic links. Namely, expressive interpersonal ties with common third persons condition meaning sharing between individuals, while meaning sharing with common alters leads to interpersonal collaborations. Beyond dyads, the dual ordering of the social and the cultural thus operates as asymmetrical with regard to different types of interpersonal ties.

The paper shows that in addition to direct dyadic overlap, network ties with third parties play an important role for the co-constitution of the social and the cultural. Moreover, we highlight that the concept of network multiplexity can be extended beyond social networks to investigate competing micro-principles guiding the interplay of social and cultural structures.

The purpose of this paper is to provide an understanding of how two types of informal social networks – those related to instrumental purposes of information sharing and those related to expressive purposes of interpersonal trust – impact teachers’ job satisfaction.

This paper uses social network analysis (SNA) degree and betweenness measures and job satisfaction scales from the Job Diagnostic Survey to collect longitudinal data from employees in one of the vocational schools in Saint Petersburg, Russia via structured interviews. Data on a total of 354 ties were analysed for 40 ego networks in 2018 and 33 ego networks in 2019.

The obtained results partially confirm the positive effect of teachers’ position in instrumental and expressive networks on job satisfaction. More centrally positioned teachers were more satisfied with peers and colleagues. They feel more secure in regard to job security, given the unique and multi-faceted knowledge they possess. Structural diversity of the network, as well as the category of a teacher (core subject or vocational subject), are found to explain the uneven evolvement of network size. The authors argue that the decrease in network size can be treated as a positive externality of changes in an informal network. The variation in teachers’ experience seems to explain both job satisfaction and network composition.

The paper is based on a case study and its findings are limited to one particular organization. Nonetheless, the proposed SNA application is of potential value for similar organizations in terms of enhancing their capacity to benefit from networks. This study uses a structured interview to collect network data and job satisfaction data. However, overt observation or secondary data on written communication (e-mail, reports) may provide additional insights about the sought impact in the context of school.

Both teachers and managers benefit from the results of the paper. Educational policymakers and schools’ administration can exploit the bird’s eye view on an organization that SNA provides. By identifying focal employees and their attitude towards school, one receives an opportunity to prevent structural holes, organizational conflicts and uneven distribution of workload. Novice teachers can nurture their well-being by enhancing personal and instrumental social networks at the start of their careers. Experienced teachers benefit from social cooperation as it fosters the exchange of experience and skills, which is vital for job retention.

This research extends the understanding of the role of different kinds of social networks in teachers’ job satisfaction. The paper provides new insights into the SNA application to vocational schools and developing economies. Authors address teachers’ informal networks both from ego and complete network analyses to provide the holistic, yet detailed view. The use of longitudinal data advances the understanding of how personal and group networks develop over time.

Social networks provide the architecture to facilitate important socio-emotional and task related exchanges within groups. However, researchers have just begun to explore how relationships form in groups comprised of individuals who differ on one or more dimensions. This paper investigates the role of social categorization and social network theories on the formation of social networks within diverse groups. We suggest that each perspective offers an alternative, but incomplete, understanding of how relationships may arise in diverse groups. Specifically, we integrate these two perspectives to provide a more complete understanding of how different types of diversity impact tie formation and allow individuals in diverse groups to achieve their socio-emotional and task-related objectives.

The field of Human Resource Management (HRM) has long recognized the importance of interpersonal influence for employee and organizational effectiveness. HRM research and practice have focused primarily on individuals’ characteristics and behaviors as a means to understand “who” is influential in organizations, with substantially less attention paid to social networks. To reinvigorate a focus on network structures to explain interpersonal influence, the authors present a comprehensive account of how network structures enable and constrain influence within organizations. The authors begin by describing how power and status, two key determinants of individual influence in organizations, operate through different mechanisms, and delineate a range of network positions that yield power, reflect status, and/or capture realized influence. Then, the authors extend initial structural views of influence beyond the positions of individuals to consider how network structures within and between groups – capturing group social capital and/or shared leadership – enable and constrain groups’ ability to influence group members, other groups, and the broader organizational system. The authors also discuss how HRM may leverage these insights to facilitate interpersonal influence in ways that support individual, group, and organizational effectiveness.