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 develop a model where the unemployed workers in the city can find a job either directly or through weak or strong ties. We show that, in denser areas, individuals choose to interact with more people and meet more random encounters (weak ties) than in sparsely populated areas. We also demonstrate that, for a low urbanization level, there is a unique steady-state equilibrium where workers do n...

Differences between Japanese adolescent's (127 males and 227 females) and American adolescent's views on their relationships with their parents were studied. Japanese male students showed the lowest scores on both the father-child and mother child emotional tie scales, but indicated the highest scores on both the paternal and maternal control scales. It was found that the Japanese students who ...

A theoretical model to investigate factors influencing enterprise resource planning (ERP) system users’ performance in the post-implementation stage within organization is developed. The hypotheses were tested using survey data from companies that implemented ERP systems. Results from partial least squares (PLS) analyses suggest that organization climate, absorptive capacity, ease of use and sy...

The strength of weak ties is that they tend to be long – they connect socially distant locations. Recent research on “small worlds” shows that remarkably few long ties are needed to give large and highly clustered populations the “degrees of separation” of a random network, in which information can rapidly diffuse. We test whether this effect of long ties generalizes from simple to complex cont...

This paper models the entrepreneurial process as both creation and discovery composed of an iterative two-step process where entrepreneurs create social networks based on subjective expectations about the future effectiveness of those networks, and then choose the innovation to pursue and map a search process to discover how to bring the innovation to fruition. Critical to this process is the m...

Based on social network perspective, we developed a model about the knowledge sharing of communities of practice (CoPs), analyzed the knowledge sharing of CoPs from the view of the network density, network centrality, network structure. And we found out that only the above indexes are kept in appropriately level can stimulate the knowledge sharing in CoPs. The strong ties contribute to the tran...

Internet, as a new channel of WOM, enables consumers to get multiply WOM messages. However, there is a very real consumer situation that consumers may receive opposite messages (positive-negative) from the same sources. According to tie strength, this paper divides e-WOM sources into strong tie sources and weak tie sources, examining how e-WOM sources moderate the influence of e-WOM presentatio...

Weak ties play a significant role in the structures and the dynamics of community networks. Based on the contact process, we study numerically how weak ties influence the predictability of epidemic dynamics. We first investigate the effects of the degree of bridge nodes on the variabilities of both the arrival time and the prevalence of disease, and find out that the bridge node with a small de...