We show that three basic actor characteristics, namely normalized reciprocity, three cycles, and triplets, can be expressed using an unified framework that is based on computing the similarity index between two sets associated with the actor: the set of her/his friends and the set of those considering her/him as a friend. These metrics are extended to multiplex networks and then computed for tw...

Studies of social networks have often taken the existence of a social tie as a proxy for the transmission of information. However, other studies of social networks in the labor market propose that the likelihood of information transmission might depend on strength of the tie; and that tie strength is a potentially important source of the tie's value. After all, even if job seekers have social t...

BACKGROUND The distribution of the roles and responsibilities of long-term condition management (LTCM) outside of formal health services implicates a wide set of relationships and activities of involvement. Yet, compared to studies of professional implementation, patient systems of implementation remain under-investigated. The aim of this paper is to explore the work, meaning and function attri...

This paper examines the celebrated ‘Strength of weak ties’ theory of Granovetter (1973). We examine two hypotheses implied by the theory: one, for any three players with two links present, the probability of a third link being present is increasing in the strength of the two ties, and two, the removal of a weak tie breaks more shortest paths than the removal of a strong tie. This paper tests th...

The social networks literature suggests that ties must be maintained to retain value. In contrast, we show that reconnecting dormant ties—former ties, now out of touch—can be extremely useful. Our research prompted Executive MBA students to consult their dormant contacts about an important work project; outcomes compared favorably to those of their current ties. In addition, reconnecting previo...

We investigate gender homophily in the spatial proximity of children (6 to 12 years old) in a French primary school, using time-resolved data on face-to-face proximity recorded by means of wearable sensors. For strong ties, i.e., for pairs of children who interact more than a defined threshold, we find statistical evidence of gender preference that increases with grade. For weak ties, conversel...

As Foner (1999) explained, “Kinship ties are an effective way to cope with uncertainty and economic scarcity.” Granovetter (1973) defined the “strength” of an interpersonal tie as being a function of the “amount of time, the emotional intensity, the intimacy (mutual confiding), and the reciprocal services which characterize the tie.” Individuals build and cultivate both strong and weak interper...

objective: we measured concept of bridging social capital by a new tool . all items used in the scale are in agreement with the theoretical literature on this concept. method: the research method was survey. the sample population was 376 students of isfahan university which were sampled through cluster sampling of multiple stages. after making a list and confirming the validity of questions by ...

We develop theory to better understand the role of networks in accessing the entrepreneurial competencies required to create new ventures within the academic environment. We follow the initiation and early development of four university spin-offs within the UK and Norway. Following a competency perspective, we observed how each nascent venture relied on strong and weak network ties to access th...

A tie is a link between two persons in a social network. Here, we analyze tie strength in temporal co-authorship social networks by measuring ties persistence and transformation over time. Surprisingly, most ties tend to perish over time. Also, weak and random ties are more present in real co-authorship networks than bridges and strong ones.