The aim of the project that underlies this paper is to advance our understanding of wecentric ICT services. Such services are meant to support people who work, communicate and cooperate in dynamic groups. An exploration of the qualities of such services yields delicate questions about for example group membership, social appropriateness, dynamic tasks, control and privacy. These questions need ...

Using a randomized evaluation with 432 Mexican small and medium enterprises, we show that access to management consulting had positive effects on total factor productivity and return-on-assets (about 0.2 standard deviations, relative to the control group). Owners also had significant increase in “entrepreneurial spirit” (an index that measures entrepreneurial confidence and goal setting). Using...

The use of social media has significant impact on various areas of society. In the past few years, firms have systematically embraced social media as a major means of communication, collaboration, as well as exploration and exploitation of knowledge. In the practice literature, many claim that social media use increases the competitive advantage and performance of firms. However, evidence of th...

We show, apart from a correlation inequality for the 6-point function, that the critical or continuum liinit of (11'4)4 lattice field theory is trivial, if some deviations from the mean field theory law are present at the critical point, and if we impose a mild behavior of bare 4-point coupling constant as we approach the critical point. These results are derived from the bounds on the renormal...

In this article, we begin to explore the black box between human resources (HR) practices and firm performance. Specifically, we examine the relationships between a set of network-building HR practices, aspects of the external and internal social networks of top management teams, and firm performance. Results from a field study with 73 high-technology firms showed that the relationships between...

In recent years, adverse drug reactions have drawn more and more attention from the public, which may lead to great damage to the public health and cause massive economic losses to our society. As a result, it becomes a great challenge to detect the potential adverse drug reactions before and after putting drugs into the market. With the development of the Internet, healthrelated social network...

A mobile social network system (MSNS) allows groups of friends to be accessed and engaged with from one's mobile phone. Dodgeball is a MSNS that seeks to facilitate social connection and coordination among friends in urban public spaces. Based on a year-long qualitative field study, this article reports on the social and behavioral norms of Dodgeball use. A comparison between social network sit...

1. Introduction We study the problem of allocating a single indivisible object with monetary transfers among a set of individuals who have mutually different valuations over the object. An interesting public economic example is the locating problem of a Not-In-My-Backyard facility among a group of districts. In this situation, each district (individual) has to bear disutility (negative valuatio...

School of Environment and Natural Resources, Renmin University of China 59 Zhongguancun Road, Beijing 100872, People’s Republic of China. Tel.: +86 10 825