We investigate the role of manipulation in a model of opinion formation. Agents repeatedly communicate with their neighbors in the social network, can exert effort to manipulate the trust of others, and update their opinions about some common issue by taking weighted averages of neighbors'...

The impact of the transition from a global budget payment to an activity-based financing system on public hospitals financial equilibrium is analyzed in this paper. To do so, we develop a theoretical model where patients? demand is related to joint decisions made by hospital managers and...

We study the endogenous formation of networks between manufacturers of differentiated goods and multi-product retailers. We find that, under both types of contracts (linear and two-part tariffs), only three distribution networks are stable for particular values of the degree of product...