This paper surveys the existing literature on religious and cultural leaders. It discusses potential motivations of a leader and highlights that irrespective of his/her exact motivations, the presence of a leader is crucial for the cultural heterogeneity of a society. The impact of...

We study a quality-ladder model of endogenous growth that produces stochastic leadership cycles. Over a cycle, industry leaders can innovate several successive times in the same industry, gradually increasing the magnitude of their technological lead before being replaced by a new entrant....

We study a dynamic model of opinion formation in social networks. In our model, boundedly rational agents update opinions by averaging over their neighbors' expressed opinions, but may misrepresent their own opinion by conforming or counter-conforming with their neighbors. We show that an...

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'...

Increasing the realism with respect to the representation of actors, decision-making, and institutions is critical to better understand the transition towards a low-carbon sustainable society since actors, decision-making, and institutions are the defining elements of transition pathways. In...

Over a quarter of the world's population lives in economies that have undertaken transitions from central planning to market economies. These transitions entail far-reaching and complex changes in social, economic and political institutions and have had widely divergent outcomes. Important...