Social capital configuration, legal bonds and performance in buyer-supplier relationships

Academics have increasingly recognized the benefits derived from social networks embedded within companies’ buyer-supplier relationships. However, prior research has only examined the influence of social capital elements on performance, either individually or in part. We propose an integrative model examining the relationships among relational, structural and cognitive dimensions of social capital, and between these dimensions and the cost and innovation performance of the firm. A sample of 163 buyer-supplier relationships is used to test the model. Regression results indicate that the relational dimension of social capital fully or partially mediates the effect of the cognitive dimension on performance, and partially mediates the link between the structural dimension, operationalized as social interaction ties, and innovation performance. Further, high levels of legal bonds were found to moderate the relationship between the relational dimension of social capital and performance outcomes. Implications for theory and managers are discussed.     

Understanding information exchange in healthcare operations: Evidence from hospitals and patients

Coordination – or the information exchange among physicians and hospital staff – is necessary for desirable patient outcomes in healthcare delivery. However, coordination is difficult because healthcare delivery processes are information intensive, complex and require interactions of hospitals with autonomous physicians working in multiple operational systems (i.e. multiple hospitals). We examine how three important variables distinctive of the healthcare operations context – use of IT for dissemination of test results (ITDR) (i.e. electronic health records systems) by physicians and hospital staff, social interaction ties among them, and physician employment – influence information exchange and patient perceptions of their care. Drawing from the literature on process inter-dependencies and coordination, vertical integration and social exchange, we develop and test research hypotheses linking ITDR, social interaction ties and physician employment to information exchange relationship, and information exchange relationship to provider–patient communication. Using a paired sample of primary survey data and secondary archival data from CMS HCAHPS for 173 hospitals in the USA, we find that increased information exchange relationship drives provider–patient communication, and increased social interaction ties drives information exchange relationship. Social interaction ties fully mediates the relationship between ITDR and information exchange relationship. Physician employment amplifies the link between ITDR and social interaction ties, but does not have an effect on the link between ITDR and information exchange. We do not find a direct relationship between ITDR, and information exchange relationship or provider–patient communication.     

Networks and leadership development: Building linkages for capacity acquisition and capital accrual

Social networks can aid the leadership development process through facilitating access to important developmental assignments and the acquisition of capabilities to handle associated challenges. Although much of the traditional focus of leadership development has been on building intrapersonal capabilities, functioning effectively as a leader necessitates the development of interpersonal capabilities associated with dyadic ties and relational capabilities associated with patterns of ties within networks. Such capabilities allow aspiring managers to accrue not only human capital, but social and system capital as well. Aspiring managers can tap task, career, and friendship/support networks to aid developmental and career success. Structure factors, including strategic choices, network characteristics, and the technological interface moderate the ability of managers to convert potential network contacts into significant leadership development and capital accrual. Personal factors also influence leadership development prospects. Overall, there are many ways in which network concepts associated with dyadic and relational levels of analysis can facilitate addressing the challenges that are key to leadership development.     

Exploring the social influence of the Kaggle virtual community on the M5 competition

One of the most significant differences of M5 over previous forecasting competitions is that it was held on Kaggle, an online platform for data scientists and machine learning practitioners. Kaggle provides a gathering place, or virtual community, for web users who are interested in the M5 competition. Users can share code, models, features, and loss functions through online notebooks and discussion forums. Here, we study the social influence of this virtual community on user behavior in the M5 competition. We first research the content of the M5 virtual community by topic modeling and trend analysis. Further, we perform social media analysis to identify the potential relationship network of the virtual community. We study the roles and characteristics of some key participants who promoted the diffusion of information within the M5 virtual community. Overall, this study provides in-depth insights into the mechanism of the virtual community’s influence on the participants and has potential implications for future online competitions.     

The adoption of Firm-Hosted Online Communities: an empirical investigation into the role of service quality and social interactions

Online communities are a powerful device for collaborative creativity and innovation. Developments in Web 2.0 technologies have given rise to such interactions through firm-hosted online communities (FHOCs) – firm-run online information services that also provide self-help to a community. We devise a model that seeks to explain the factors that encourage people to become members of a FHOC and test the model using structural equation modelling based on data collected from 511 users of a FHOC. The study finds that: (a) an understanding of Perceived Usefulness (PU) plays a mediating role between Behavioural Intention (BI) to adopt FHOC and Trust, as well as Interface design; b) Networking among users has an indirect effect on BI; and c) design of the Interface has a direct influence on BI. A managerial implication is that Networking plays a role in the way supplementary services, including blogs and discussion forums, are perceived. Theoretically, when service quality is decomposed into components such as core services and supplementary services, it also positively influences PU.     

Effects of structural,relational and cognitive social capital on resource acquisition: a study of entrepreneurs residing in multiply deprived areas

ABSTRACT

Emerging research demonstrates that structural social capital facilitates the resource acquisition of entrepreneurs residing in multiply deprived areas. However, their usage of relational and cognitive social capital that translates to accessible resources is not well understood. We contribute to knowledge and comprehensively examine effects of structural, relational and cognitive social capital taken together on the resource acquisition of entrepreneurs residing in multiply deprived areas. Results from a national survey of entrepreneurs residing in multiply deprived areas across England show that large networks, bonding ties, trust, reciprocity, obligations and expectations, and shared language and codes facilitate their resource acquisition. Also, we demonstrate that they are reluctant or unable to bridge social distance and adopt narrative storytelling. Furthermore, the results indicate that entrepreneurs residing in multiply deprived areas in the most deprived regions suffer from less resource acquisition.     

A study on the influence of eWOM using content analysis: how do comments on value for money,product sophistication and experiential feeling affect our choices?

The influence of electronic word of mouth (eWOM) has been heavily investigated in relation to online ratings. However, only a few studies examined the content of eWOM. From the perspective of the consideration sets model, consumers formulate an awareness set, a consideration set and a choice set before making a purchase. We argue that the formulation of these sets is influenced by eWOM based on its volume, valance and content relating to product attributes such as value for money, product sophistication and experiential feeling. In this study, the content of posts relating to Shure professional earphones in the online forum Mingo (www.mingo-hmw.com/forum) was captured and annotated. During the data collection period, Mingo was the sole online forum relating to professional earphones. Without much interference from other online forums, the circumstances of this study closely approximate a laboratory setting. In addition, we collected the actual sales, marketing costs, fault rates and number of retail stores selling the Shure professional earphones for 126 weeks. Our findings show that the weekly volume of posts, their relative number of positive (negative) comments, especially regarding value for money and sound quality, and those posts from the earlier week impinged strongly on weekly sales of Shure products. From the regression models, the explained variance in sales jumps from 0.236 to 0.732 due to the influence of eWOM.     

Risk-taking and relational perspective on turnover intentions

This study investigated risking-taking and network ties and their impact on an individual's intention to quit from a relational perspective. Using the social identity and social capital as the theoretical foundation, hypotheses were developed to examine how internal instrumental and external ties as well as ties with higher ranked individuals and their association with turnover intention. These hypotheses were empirically tested using data collected from 126 full-time employees in a Chinese setting. The results showed that high risk propensity was positively associated with turnover intention. Not only internal ties that binds, but external networking also matter in turnover decisions.     

Among leaders and territories: the political networks of the district councillors in Naples

This work describes the role of the district councillors of Naples, through an analysis of their relational networks. District councils are the result of the administrative decentralization of the major Italian municipalities. During a 2 year field research study, I gathered 387 semi-structured interviews with the councillors and 35 unstructured interviews with a set of key informants. In order to increase the understanding of the political networks, I have also collected information through direct observation of the councillors meetings and activities. The analysis combines qualitative and quantitative data. At a formal level, district councillors don’t have any actual power, but, in practice, they gain important social capital resources by playing a brokerage role between political patrons and their potential clients. I provide evidence that, on one side, they hold strong ties with the higher level politicians; and, on the other side, they play a fundamental role in taking care of the voters and collecting the electoral consensus. In conclusion, I argue that the district councillors of Naples perform the tasks which were previously carried out by the traditional party organizations, assuming the role of the “new” professionals of grass roots politics.     

Relational capital,environmental knowledge integration,and environmental performance of small and medium enterprises in emerging markets

Although several prior studies have examined associations between firm social capital and environmental sustainability, the links between relational resources (i.e., relational capital and ties strength), environmental knowledge integration, and environmental performance have yet to be well established at the micro-level. This study, therefore, aims to determine (1) how environmental knowledge integration serves as a mediating mechanism for the relationship between relational capital and environmental performance and (2) how this impact differs at different levels of ties strength. A quantitative approach has been adopted to examine the main hypotheses using a structural equation model (SEM) technique. Two groups of actors were surveyed, including chief executive officers (CEOs) and financial officers of small and medium-sized enterprises (SMEs) operating in Dubai, United Arab Emirates. In total, 216 survey responses were gathered, suggesting a response rate of 73.22%. Our findings suggest that environmental knowledge integration is a vital mediating mechanism for the relationship between relational capital and SMEs' environmental performance. Also, we find that ties strength moderates the indirect effect of relational capital on SMEs' environmental performance via environmental knowledge integration. Our empirical evidence provides recommendations for SMEs' managers and policymakers to promote environmental sustainability in the emerging market context.     

Link analysis: Hyperlink patterns and social structure on politicians’ Web sites in South Korea

This paper presents results of an investigation into political communication expressed by links connecting politicians’ web sites with the sites of other political actors in South Korea. Additionally, this study examines whether a set of socio-demographic variables for web site producers is associated with linking behavior. Both traditional methods and social network analytical techniques are employed to investigate linking patterns between sites. Perhaps unsurprisingly, members of the South Korean National Assembly linked most to party web sites, and linking patterns did not change between 2003 and 2004. Out of a range of demographic variables investigated, the only ones that related significantly to linking practices were party affiliations and friendship networks.     

Using your regular contacts as collateral: The information value of call logs

This paper aims to uncover the deterrent effect of external social ties on online peer-to-peer lending by extracting valuable information from the phone usage data. Contrary to the studies viewing online internal friendships as the signal of credit quality, we find that the total number of outgoing calls made in the month before loan requests is positively associated with the probability of default, which suggests that more social interactions offline mediated by mobile phones are more likely to signal poor trustworthiness. Only the features pertaining to the calls made during the morning for a given day have the potential as an effective predictor for the borrower’s credible social collateral. However, the online peer-to-peer lending platform studied by us fails to perfectly judge borrowers by their external social ties since the total number of outgoing calls generally has a negative relationship with the interest rates charged for funded loans. Overall, our work advances the understanding of the economic value carried by call logs in the context of disintermediated financial markets with information asymmetry.     

Urban Poverty,Segregation and Social Networks in São Paulo and Salvador,Brazil

General consensus exists concerning the relevance of networks and space in poverty situations, despite a considerable dispute on the prominence of each element. While social‐support and poverty debates highlight the joint importance of space and networks, the research agenda on contemporary communities suggests that networks have recently started replacing space in social integration. These debates mainly consider networks and ties normatively and are restricted to the global North, hampering the formulation of comparative interpretations and more theoretical conclusions. This article discusses the relationship between space, sociability and poverty, based on research results on networks of poor individuals in two major Brazilian metropolises—Salvador and São Paulo. Research indicates the existence of great heterogeneity in the networks of poor individuals, although with substantial differences, on average, to middle‐class individuals. Certain types of networks and sociability are systematically associated with better living conditions, employment and income. Additionally, network mobilization by individuals presents important regularities associated with social mechanisms, understood as regular patterns that trigger or cause certain results. These mechanisms explain to a great extent the heterogeneity of networks, and mediate the individual's access to opportunities and everyday assistance. They therefore contribute decisively to the production (and reproduction) of urban poverty.     

Networks to Nerdistan: The Role of Labor Market Intermediaries in the Entry‐level IT Labor Market

Although networks have long governed economic relations, they assume even more importance in a knowledge‐based economy. Yet, some argue that because of the lack of social networks and human capital, some groups are permanently ‘switched off’ the networks of the global economy. Evidence presented in this article suggests that instead there is latent potential for access to the network, due to the rise of networked community‐based organizations and the increasing accessibility of technology. Based on surveys and in‐depth interviews with almost 700 workers and training providers, I show how the switched off are entering jobs in information technology through network ties and the acquisition of soft skills, or communication and interaction skills. Although community‐based training providers are best positioned to help disadvantaged jobseekers enter the network society, changes in the US workforce development system are reinforcing network exclusivity, rather than facilitating this upward mobility.     

Communication channels,innovation tasks and NPD project outcomes in innovation-driven horizontal networks

Inter-organizational collaborations and horizontal networks are increasingly playing a pivotal role in innovations and new product development among firms. In this study, we investigate the link between the innovation task analyzability and the richness of communications channels used in network arrangements and the link between task analyzability and ties and project development time. We investigated the links based on the data collected from 372 respondents representing ninety three different innovation-driven horizontal networks. The results of structural equation modeling reveal a negative link from task analyzability to communication channel richness and a positive link from communication channel richness to ties. Communication channel richness was found to partially mediate the influence that task analyzability has on both NPD project outcomes of ties and development time. The implications of our results for theory and practice are discussed.     

OTN的主要优势及其在电力行业的应用前景

社会在发展的同时对于各类基础设施的要求也在逐渐提高,通信网络作为新时期发展的基础工程,对于社会通信及信息传输有着重要的意义。早期传统的通信网络无法满足目前巨大的信息传输量要求,阻碍了社会通信网络运行效率的提升。行业技术的发展让光传送网建设成为可能,这种先进的通信网络采用了最新的传输技术,为我国通信事业的改革创新提供了技术保证。文章重点分析了光传送网的优势及在电力行业的运用情况。     

Classification of various attacks and their defence mechanism in online social networks: a survey

Due to the popularity and user friendliness of the Internet, numbers of users of online social networks (OSNs) and social media have grown significantly. However, globally utilised, social networks are the consequence of the lack of understanding of secrecy and protection on OSN and media has increased. Secrecy and surety of OSNs need to be inquired from various positions. According to recent studies, OSN users expose their private information such as email address, phone number etc. In this paper, we have presented a high-level classification of recent OSN attacks for recognising the problem and analysing the blow of such attacks on World Wide Web. We have also discussed OSN attacks on different social networking web applications by citing certain recent reports such as Kaspersky security network and Sophos security threat report. We also offer some simple-to-implement user practice tips to protect the system and user’s information. In addition to this, we have discussed a comprehensive analysis of numerous defensive approaches on OSN security. Lastly, based on the acknowledged strength and faults of these defensive approaches, we have explained open research issues.     

From network ties to network structures: Exponential Random Graph Models of interorganizational relations

Theoretical accounts of network ties between organizations emphasize the interdependence of individual intentions, opportunities, and actions embedded in local configurations of network ties. These accounts are at odds with empirical models based on assumptions of independence between network ties. As a result, the relation between models for network ties and the observed network structure of interorganizational fields is problematic. Using original fieldwork and data that we have collected on collaborative network ties within a regional community of hospital organizations we estimate newly developed specifications of Exponential Random Graph Models (ERGM) that help to narrow the gap between theories and empirical models of interorganizational networks. After controlling for the main factors known to affect partner selection decisions, full models in which local dependencies between network ties are appropriately specified outperform restricted models in which such dependencies are left unspecified and only controlled for statistically. We use computational methods to show that networks based on empirical estimates produced by models accounting for local network dependencies reproduce with accuracy salient features of the global network structure that was actually observed. We show that models based on assumptions of independence between network ties do not. The results of the study suggest that mechanisms behind the formation of network ties between organizations are local, but their specification and identification depends on an accurate characterization of network structure. We discuss the implications of this view for current research on interorganizational networks, communities, and fields.     

The Role,Use and Activation of Strong and Weak Network Ties: A Qualitative Analysis*

abstract A characteristic of studies seeking to explain the structure and operation of networks is the use of Granovetter's strong and weak tie hypothesis. Whilst this hypothesis has become an established paradigm, questions and disagreements arise over its applicability at demonstrating the real use and value of each tie. This study extends the work of Granovetter. Using a qualitative ethnographic approach to explore in‐depth the networking activities of fourteen respondents, it aims to enhance understanding about the role of ties, how they are used and activated for business activity. Findings demonstrate that it is strong ties that are instrumental for business activity and used extensively to provide knowledge and information but also to maintain, extend and enhance business and personal reputations. Unless activities require their reactivation and manifestation, strong ties remain latent and dormant within the network. Strong ties also provide the mechanism to invoke ‘weak’ ties, represented by nodes operating in a wider social context.     

社会网络视角下沪宁线信息产业集群分析

本文基于社会网络理论,对沪宁线信息产业的结构及发展状况进行系统分析的基础上,提出沪宁线信息产业集群的升级策略。通过引力模型对沪宁线城市间信息产业的经济联系进行分析,得到近年来各城市之间的联系程度。然后根据计算的沪宁线城市间经济联系值,以这些数据作为基础数据对沪宁线信息产业进行网络密度、中心性分析、结构相似性等的社会网络分析,进一步了解沪宁线信息产业带的发展状况及产业集群的结构。针对这些社会网络的指标对沪宁线信息产业带今后的发展提出建议。