On the role of imitation in social networks

This thesis focuses on the role of imitation in social networks. We study diffusion processes where the agents imitate successful past behavior of their neighbors. I characterize the long run properties of these processes, as well as targeting strategies that lead to maximum diffusion of a specific desired action in a network. Although theoretical, the results can have direct applications in different fields, like marketing and public policyPresidente: Coralio Ballester; Vocal: Sunctjoo Choi; Secretario: Ignacio Ortuñ