Studies on friendships in online social networks involving geographic distance have so far relied on the city location provided in users’ profiles. Consequently, most of the research on friendships have provided accuracy at the city level, at best, to designate a user’s location. This study analyzes a Twitter dataset because it provides the exact geographic distance between corresponding users....

Organizations are building and maintaining systems for managing organizational knowledge and memory. Users of these systems may not be at the same location; in many cases they are distributed across large geographical distances and multiple offices. Key to this task is developing an infrastructure that facilitates distributed access and utilization of the retained knowledge and memory. Connecti...

What determines the mechanism chosen to resolve a commercial dispute? To what degree does the aggrieved recover damages? And does the relationship survive in the aftermath? The answers to these questions affect expectations as to the costs of transacting and, thereby, the development of markets. But they have received almost no attention in the economic literature on the post-socialist transiti...

This article develops the concept of crisis compliance (CC)—defined as making appropriate use of IT, and non-IT methodologies to predict, prevent, and prevail over disasters. CC emerges from Lally’s Target Shield and Weapon Model, which is grounded in the theories of crisis management, normal accident theory, and high reliability organizations. CC is then applied to a case study involving Hurri...

Get your organisation together video-mediated communication in an informal se t ting. Abstract Videoconferencing is a way to make people meet regardless of the geographical distance between them. In recent years, it has become possible to use the Internet as a carrier for communication of this type. This has opened up new opportunities to use computers that already are connected to the Internet...

description and bibliographic detail for individual items, as in her entry for a short treatise on urines that provides specific directions for investigation of possible Latin sources. In another instance, she warns readers when a text is misrepresented by its title (i.e., 'dieta ypocras' in MS R.14.32 [5]) and then cross-references other manuscripts in the handlist where the same title accurat...

Measurements and data analysis have proved very effective in the study of the Internet’s physical fabric and have shown heterogeneities and statistical fluctuations extending over several orders of magnitude. Here we analyze performance measurements obtained by the PingER monitoring infrastructure. We focus on the relationship between the Round-Trip-Time (RTT) and the geographical distance. We ...

Semantic technologies can increase effectiveness of resource discovery in mobile environments. Nevertheless, a full exploitation is currently braked by limitations in stability of data links and in availability of computation/memory capabilities of involved devices. This paper presents a platform-independent mobile semantic discovery framework as well as a working prototypical implementation, e...

We investigate whether the supply of venture capital (VC) is driven by spatial proximity between a VC company and the portfolio firm. Our analysis is based on information about VC investments in Germany between 2004 and 2009. We find that possible problems caused by the geographic distance to a portfolio firm seem to be overcome by syndication of investments with one of the VC firms located clo...

The network structures of interfirm interactions have been linked previously to disaster resilience. However, the dynamic drivers of interfirm network structures rarely have been explored in the literature. This paper uses stochastic actor-oriented modeling to examine how networks of economic interactions among the 500 largest Japanese companies were created and maintained between 2010 and 2011...