The Torcy Junior High School is located on the outskirts of the new town of Marne la Vallée in the Paris suburbs, between a motorway and a stretch of ordinary countryside on a site overlooking a small lake. Special attention was paid to its geographic setting and to the various aspects of its...

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...