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Article
Publication date: 9 January 2020

Moronke Idiagbon-Oke and Adegoke Oke

In contrast to the vertical supply chain structure, firms are increasingly engaging in horizontal inter-firm collaborations to develop new technologies, products and…

Abstract

Purpose

In contrast to the vertical supply chain structure, firms are increasingly engaging in horizontal inter-firm collaborations to develop new technologies, products and services, yet, little is known about factors that influence the governance mechanism and performance of such collaborative projects. The purpose of this paper is to investigate how different factors affect the role or the centrality of the governing mechanism (the broker) in inter-firm collaborative networks.

Design/methodology/approach

Using a case study method approach, this paper studies three dynamic networks comprising firms that are not in a traditional supply chain relationship. The networks comprised firms engaged in the development of different aspects of an innovative automotive technology.

Findings

The study finds that broker’s centrality varies over time and is directly related to project performance; network structure and perceived broker power are related to broker centrality in dynamic networks. The more loosely connected a network is (open network), the more the degree of broker centrality. The higher the degree of expert power that a broker is perceived to possess, the higher is the degree of broker centrality.

Originality/value

Investigating governance mechanism and determinants of network outcomes in inter-firm collaboration for new product development represents a departure from the traditional studies on similar phenomena in vertically structured supply chain arrangements; thus, contributes to the literature on innovation in inter-firm arrangements. Understanding how the salient factors contribute to performance at the network level builds on firm level and dyadic level of analysis or focus of previous studies.

Details

Journal of Manufacturing Technology Management, vol. 31 no. 3
Type: Research Article
ISSN: 1741-038X

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Article
Publication date: 21 November 2016

Kamal Badar, Terrill L. Frantz and Munazza Jabeen

The purpose of this paper is to explore the nature of the relationship between a scholar’s research performance (using weighted journal-impact factor average) and their…

Abstract

Purpose

The purpose of this paper is to explore the nature of the relationship between a scholar’s research performance (using weighted journal-impact factor average) and their degree centrality; the impact of author-homophily (in terms of gender, institutional sector, academic age, academic ranks, province and city) on this relationship is investigated as well.

Design/methodology/approach

Using scientific publishing data and journal-impact factors from Thomson Reuters’ ISI Web of Science (SCI) and Journal Citation Reports, respectively, the domestic co-authorship network of chemistry researchers in Pakistan during 2002-2009 was constructed then modeled via ordinary least squares regression.

Findings

Results show that the personal characteristics of a researcher do not necessarily lead to high degree centrality, i.e. attributes may not be causal to co-author relationships. Instead, high degree centrality is more so a function of the forerunning research performance of the researcher: those whom publish more in terms of impact factor, attract more co-authors (high degree centrality). Moreover, the relationship between research performance and degree centrality is positively moderated by age and province homophily and negatively moderated by city homophily.

Research limitations/implications

Data are sourced wholly from the Pakistani chemistry research community; results many not be generalizable to other sub-populations or the wider research community.

Practical implications

The findings provide insights to performance-seeking authors: knowing that their research performance enhances their centrality, which in-turn may lead to increased research performance and various other desirable professional outcomes. In addition, researchers can look toward establishing similar (homophilous) or dissimilar (heterophilous) ties knowing that the relationship between research performance and centrality will likely be stronger when similarity or dissimilarity exists.

Social implications

This study supports the idea that high research performance attracts more potential co-authors, which in-turn may lead to ever greater research performance, which suggests that the research community will be fragmented between high- and low-performing researchers. Also researcher will have similar or dissimilar ties in terms of various characteristics which in turn moderate the research performance centrality relationship.

Originality/value

This paper counteracts the empirical belief that researchers are attractive as potential co-authors according to their personal and professional characteristics. It is actually their research performance and homophily or heterophily of their ties which matters.

Details

Aslib Journal of Information Management, vol. 68 no. 6
Type: Research Article
ISSN: 2050-3806

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Article
Publication date: 4 May 2018

Jimmy H.T. Chan, Anthony C.K. Ko, Alan K.M. Au and Matthew C.H. Yeung

The understanding of leaders’ network centrality in social networks has been acknowledged as a major topic that can advance the social network field; most studies in this…

Abstract

Purpose

The understanding of leaders’ network centrality in social networks has been acknowledged as a major topic that can advance the social network field; most studies in this area have either taken firms as the subject by which the network centrality of firms was measured or/and have been conducted for the functional project context. Very little research has been done in the pure project context. This paper aims to revisit the centrality–performance link in the singular specialized project context.

Design/methodology/approach

The proposed relationships using panel data on 48 movie directors who lead pure projects has been studied. Freeman’s (1979) and Wasserman and Faust’s (1994) procedures have been adopted to compute our three centrality measures and their effects have been examined on box-office and artistic performance. A random effect and a mixed-effects Poisson model have been fit to examine the significance of the centrality–performance relationship.

Findings

The findings provide empirical evidence to support three out of the six hypotheses. The findings suggested that degree and closeness centrality are positively related to commercial performance and betweenness centrality is negatively related to commercial performance. However, it was found that only the degree centrality is related to artistic performance.

Originality/value

This study has two features that distinguish it from prior studies that link centrality to performance. First, the focus is on centrality attached to the leaders instead of the centrality attached to functional project teams or firms, as previously investigated. Second, this study is the first attempt of its kind to analyse the proposed relationship for an Asian market.

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Article
Publication date: 14 October 2021

Dong-Young Kim and Bruce Fortado

The importance of supply chain network centrality has been widely recognized in the manufacturing literature. This study extends this literature by investigating the…

Abstract

Purpose

The importance of supply chain network centrality has been widely recognized in the manufacturing literature. This study extends this literature by investigating the relationship between network centrality and innovation value. “Innovation value” refers to an innovation's impact, quality and potential future contribution to technological development in a business community. This study also aims to examine whether the relationship between supplier centrality and innovation value is contingent upon supplier acquisition.

Design/methodology/approach

The study hypotheses are tested with archival data collected from US high-tech manufacturing industries over the 17-year period. Negative binomial regression analysis was used to test the hypotheses.

Findings

The authors found that supplier centrality has a significant positive relationship with innovation value. Moreover, an increase in supplier acquisition activities makes the relationship between supplier centrality and innovation value more positive.

Originality/value

This study contributes to the manufacturing and technology management research by exploring the impact of supplier centrality on innovation value. The results of this study shed light on the importance of a firm's central network position in enhancing the impact and quality of innovation. This study uncovers contingencies that help realize the potential benefits of holding a central network position.

Details

Journal of Manufacturing Technology Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1741-038X

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Article
Publication date: 12 March 2021

Liukai Wang, Ji Yan, Xiaohong Chen and Qifa Xu

The purpose of this study is to bridge the gap in the literature on supply chain finance (SCF) by exploring the relationship between network capabilities and corporate…

Abstract

Purpose

The purpose of this study is to bridge the gap in the literature on supply chain finance (SCF) by exploring the relationship between network capabilities and corporate financial performance (CFP) in financial supply chains (FSCs).

Design/methodology/approach

The authors collect panel data and adopt regression analysis to analyse the joint investment activities among 1359 manufacturing firms and 289 financial service providers in China to explore how network capabilities, both network power and network centrality, improve CFP in the FSCs.

Findings

Under the FSCs environments, network centrality (i.e. eigenvector centrality, closeness centrality and betweenness centrality) raises CFP (ROA, ROE and Tobin's Q) and network power (node degree, clustering coefficient) also improves CFP. However, node strength from the network power stream has a negative effect on Tobin's Q, indicating that when the partner of a firm has an extremely strong influence in FSCs; this weakens the bargaining ability and flexibility of the focal firm, thus reducing its long-term financial performance.

Practical implications

The joint investment activities among supply chain partners and financial service providers help managers understand the advanced financing solutions generated by internal and external network organisations as well as be aware of network capabilities' impact on CFP in FSCs.

Originality/value

This study answers the call for more empirical research on SCF to provide a broader sample to examine financial supply chain management. This is one of the earliest studies to shed light on a new perspective – how network capabilities improve CFP in the FSCs.

Details

International Journal of Operations & Production Management, vol. 41 no. 4
Type: Research Article
ISSN: 0144-3577

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Article
Publication date: 31 December 2020

Honghong Zhang and Xiushuang Gong

This study aims to empirically investigate how susceptibility to social influence in new product adoption varies with one’s structural location in a social network.

Abstract

Purpose

This study aims to empirically investigate how susceptibility to social influence in new product adoption varies with one’s structural location in a social network.

Design/methodology/approach

The social network data were collected based on a sociometric network survey with 589 undergraduate students. Social network analysis and ordinary least squares regression analyses were used to test the hypotheses.

Findings

This study finds that consumers with high degree centrality (i.e. hubs) who have a large number of connections to others and consumers with high betweenness centrality (i.e. bridges) who connect otherwise distant groups in social networks are both less sensitive to informational influence from others. More importantly, the authors find evidence that consumers with moderate levels of degree/betweenness centrality are more susceptible to normative influence and status competition than those with low or high degree/betweenness centrality. The inverse-U patterns in the above relations are consistent with middle-status conformity and anxiety.

Research limitations/implications

This research complements social influence and new product diffusion research by documenting important contingencies (i.e. network locations) in consumer susceptibility to different types of social influence from a social network perspective.

Practical implications

The findings will assist marketers to leverage social influence by activating relevant social ties with effective messages in their network marketing strategies.

Originality/value

This research provides a better understanding of the mechanisms driving susceptibility to social influence in new product diffusion.

Details

European Journal of Marketing, vol. 55 no. 5
Type: Research Article
ISSN: 0309-0566

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Article
Publication date: 22 July 2019

Amer Ali Al-Atwi

The purpose of this paper is to adapt the job demands–resources perspective to extend social network literature by examining the effectiveness of psychological (work…

Abstract

Purpose

The purpose of this paper is to adapt the job demands–resources perspective to extend social network literature by examining the effectiveness of psychological (work engagement and emotional exhaustion) and instrumental (access to benefits) mechanisms as mediators of the relationship between employees’ centrality in positive and negative ties networks and job performance.

Design/methodology/approach

The survey data were collected from 103 employees working at a public bank in three stages.

Findings

The study results supported the hypotheses that an individual’s centrality in a negative network increases his/her experience of emotional exhaustion, while individual centrality in a positive network increases his/her work engagement. In addition, the findings showed that centrality in positive networks will be more predictive of work engagement when negative ties centrality increases, and the relationship between centrality in the negative network and emotional exhaustion is weaker when centrality in the positive network is higher.

Originality/value

The study extends out to the social ledger model (Labianca and Brass, 2006) by examining the dual pathways of effects of positive and negative ties in predicting employee outcomes. In addition, the authors’ model enriches the understanding of the nature of social network ties more broadly by suggesting that its effects in the workplace can extend beyond psychological effects to include instrumental impact.

Details

International Journal of Productivity and Performance Management, vol. 69 no. 9
Type: Research Article
ISSN: 1741-0401

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Article
Publication date: 7 August 2019

Seyed Ashkan Zarghami and Indra Gunawan

In recent years, centrality measures have been extensively used to analyze real-world complex networks. Water distribution networks (WDNs), as a good example of complex…

Abstract

Purpose

In recent years, centrality measures have been extensively used to analyze real-world complex networks. Water distribution networks (WDNs), as a good example of complex networks, exhibit properties not shared by other networks. This raises concerns about the effectiveness of applying the classical centrality measures to these networks. The purpose of this paper is to generate a new centrality measure in order to stick more closely to WDNs features.

Design/methodology/approach

This work refines the traditional betweenness centrality by adding a hydraulic-based weighting factor in order to improve its fit with the WDNs features. Rather than an exclusive focus on the network topology, as does the betweenness centrality, the new centrality measure reflects the importance of each node by taking into account its topological location, its demand value and the demand distribution of other nodes in the network.

Findings

Comparative analysis proves that the new centrality measure yields information that cannot be captured by closeness, betweenness and eigenvector centrality and is more accurate at ranking the importance of the nodes in WDNs.

Practical implications

The following practical implications emerge from the centrality analysis proposed in this work. First, the maintenance strategy driven by the new centrality analysis enables practitioners to prioritize the components in the network based on the priority ranking attributed to each node. This allows for least cost decisions to be made for implementing the preventive maintenance strategies. Second, the output of the centrality analysis proposed herein assists water utilities in identifying the effects of components failure on the network performance, which in turn can support the design and deployment of an effective risk management strategy.

Originality/value

The new centrality measure, proposed herein, is distinct from the conventional centrality measures. In contrast to the classical centrality metrics in which the importance of components is assessed based on a pure topological viewpoint, the proposed centrality measure integrates both topological and hydraulic attributes of WDNs and therefore is more accurate at ranking the importance of the nodes.

Details

Engineering, Construction and Architectural Management, vol. 27 no. 2
Type: Research Article
ISSN: 0969-9988

Keywords

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Article
Publication date: 7 August 2017

Meng Cai and Haifeng Du

The complicated social relationship in Chinese culture requires human resource management (HRM) practitioners to be aware of the implications of social network. This paper…

Abstract

Purpose

The complicated social relationship in Chinese culture requires human resource management (HRM) practitioners to be aware of the implications of social network. This paper aims to disclose the relevance between social network structure and employees’ performance.

Design/methodology/approach

An empirical research is exploited in this paper. Based on cluster sampling method, the authors collected 336 employees’ socio-demographic characteristic data and social network data by means of face-to-face interviews using the structured questionnaire. In addition, employees’ performance data were obtained from the financial department, to support subsequent correlation analysis, grey relational analysis and OLS regression analysis.

Findings

The informal network, rather than the formal network, was observed to contribute more toward employees’ individual performance. We further found that structure centrality has a distinct advantage in delineating an individual’s power and status in the network, success over degree centrality, thus predicting individual performance.

Practical implications

For the management practice of an organization, the present study’s empirical results demonstrate that informal relations have a more decisive influence on individual performance than formal relations. This research also found that the structure centrality, from the perspective of networks’ structure heterogeneity, is valuable in discovering crucial staff in social networks, especially those in informal network associations.

Originality/value

First, the relations between network structure and individual performance have been summarized. Second, the different influences between formal and informal networks on individual performance have been discussed. Third, a new index – structure centrality to recapitulate network structure for developing social network theory – introduced. Finally, this paper is an attempt to explore the associations between social network structure and employees’ performance from the perspective of the whole network.

Details

Chinese Management Studies, vol. 11 no. 3
Type: Research Article
ISSN: 1750-614X

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Article
Publication date: 30 December 2020

Adrien Bouchet, Xuehu Song and Li Sun

This study aims to examine the impact of a chief executive officer (CEO) social network centrality on corporate social responsibility (CSR) performance.

Abstract

Purpose

This study aims to examine the impact of a chief executive officer (CEO) social network centrality on corporate social responsibility (CSR) performance.

Design/methodology/approach

This study carries out a multivariate linear regression analysis on a panel data sample of 11,507 firm-year observations (representing 1,386 unique US firms) from 2004 to 2014.

Findings

This paper finds a significant negative relation between CEO network centrality and irresponsible CSR performance (measured as CSR concerns). The findings suggest that better-connected CEOs can better mitigate CSR concerns or weaknesses, leading to improved overall CSR performance of a firm.

Originality/value

This is the first study that directly examines the empirical link between CEO centrality and CSR performance.

Details

Social Responsibility Journal, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1747-1117

Keywords

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