ties) than in sparsely populated areas. We also demonstrate that, for a low urbanization level, there is a unique steady …-state equilibrium where workers do not interact with weak ties, while, for a high level of urbanization, there is a unique steady … when social interactions are optimal, we show that there is over-urbanization in equilibrium. …

présence de gibier, en s'appuyant sur la théorie du contrôle optimal. La population optimale visée est ensuite comparée à l …