While direct social ties have been intensely studied in the context of computer-mediated social networks, indirect ties (e.g., friends of friends) have seen little attention. Yet in real life, we often rely on friends of our friends for recommendations (of good doctors, good schools, or good babysitters), for introduction to a new job opportunity, and for many other occasional needs. In this wo...

Any organization has a society of stakeholders in and around it who are interested in different aspects of the organization and actively contributing to organizational learning. These stakeholders are connected with each other through social ties and they are engaged in a continuous discussion with their socially connected neighbors to improve the organizational performance by sharing their ind...

this paper tries to introduce and measure the social capital evaluation indices at the community level while focusing on the significance of the notion of social capital itself. neighborhood ties indices, trust at the community level, participation in the community affairs, informal social control and sense of belonging to the community are the most important indices in this study. the major go...

This article presents an intelligent social grouping service for identifying right participants to support CSCW and CSCL. We construct a three-layer hierarchical social network, in which we identify two important relationship ties – a knowledge relationship tie and a social relationship tie. We use these relationship ties as metric to measure the collaboration strength between pairs of particip...

Social interactions vary in time and appear to be driven by intrinsic mechanisms, which in turn shape the emerging structure of the social network. Large-scale empirical observations of social interaction structure have become possible only recently, and modelling their dynamics is an actual challenge. Here we propose a temporal network model which builds on the framework of activitydriven time...

We examine how social relationships are related to pro-environment behaviors. We use new data from a nationally representative U.S. sample to estimate latent cluster models in which we describe individuals’ profiles of social ties with family, neighbor, and coworkers along two dimensions: intensity of connections and pro-environment norms. While our results confirm the link between social ties ...

We study how the pre-existing social network ties between the CEO and outside board members are associated with the firms’ voluntary financial disclosure practices, proxied by management earnings guidance. We construct social network ties by considering the social ties in addition to the statutory ties. After controlling firm and year fixed effects, we find a substantially strong, negative rela...

The present study investigated dispositional variables that underlie informal volunteering, service that occurs outside of any organizational structure. Dispositional variables previously related to formal volunteering, individualism/collectivism and intrinsic/extrinsic motivation, were examined along with perceived locus of control. Time spent in informal service was related to collectivism, i...

BACKGROUND Older adults typically have less access to the Internet than other age groups, and older Veterans may use the Internet even less due to economic and geographic reasons. OBJECTIVE To explore solutions to this problem, our study examined older Veterans' reported ability to access technology through their close social ties. METHODS Data were collected via mail survey from a sample o...

Despite the emerging literature on the health of rural-to-urban migrant children in China, few studies have addressed victimization stressors and stress-buffering mechanisms related to the social relationships that link migrants to their host cities (local ties) and home communities (trans-local ties). This study compared rural-to-urban migrant adolescents and urban native adolescents to examin...