In this paper we model interactions between organizational structures, job stress, emotional contagion and organization performance. An organization is modelled as solving problems or performing tasks. Tasks enter the organization and can be addressed by a subset of its members. Organization...

This paper presents an economic model of R&D network formation through the creation of strategic alliances. Firms are randomly endowed with knowledge elements. They base their alliance decisions purely on the technological fit of potential partners, ignoring social capital considerations and...

Network formation is often said to be driven by social capital considerations. A typical pattern observed in the empirical data on strategic alliances is that of small world networks: dense subgroups of firms interconnected by (few) clique-spanning ties. The typical argument is that there is...

We model knowledge diffusion in a population of agents situated on a network, interacting only over direct ties. Some agents are by nature traders, others are by nature "givers": traders demand a quid pro quo for information transfer; givers do not. We are interested in efficiency of diffusion...

Empirical research on strategic alliances has focused on the idea that alliance partners are selected on the basis of social capital considerations. In this paper we emphasize instead the role of complementary knowledge stocks (broadly defined) in partner selection, arguing not only that...

Do world-leading researchers from developing countries contribute to upgrading locally, or do they disengage from the local context? The paper investigates the scientific collaborations of university-based science and technology researchers in the database of the South African National Research...

We present a discrete choice model of consumption that incorporates two empirically validated aspects of consumer behaviour: inertia in consumption and interaction among consumers. We specify the interaction structure as a regular lattice with consumers interacting only with immediate...

This paper is concerned with clustering in demand. We present a discrete choice model of consumption that incorporates habit formation and information exchange among consumers in fixed social networks. We provide an analytical solution to a special case of the model by using technical tools from...

Over the twentieth century universities in the industrialized world have evolved from being "universities of culture" to "universities of innovation." Policy makers and universities themselves see that one of their major roles is supporting industrial innovation and thus economic growth. We...

Innovation is a source of increasing productivity, but it is also a source of stress. Psychological research shows that moderate stress increases the productivity of an actor, but above a certain level, additional stress decreases productivity. Stress is reduced by coping behaviour of the actor,...