We examine how interaction choices depend on the interplay of social and physical distance, and show that agents who are more central in the social network, or are located closer to the geographic center of interaction, choose higher levels of interactions in equilibrium. As a result, the level...

We examine how interaction choices depend on the interplay of social and physical distance, and show that agents who are more central in the social network, or are located closer to the geographic center of interaction, choose higher levels of interactions in equilibrium. As a result, the level...

This paper examines the importance of the distribution of consumers in Hotelling's circle on the comparison between the optimal and the market equilibrium levels of diversity. It finds that when most consumers are located very close to the firms, the result of Salop - that the equilibrium number...

This paper studies how the strength of social ties are affected by the geographical location of other individuals and their social capital. We characterize the equilibrium in terms of both social interactions and social capital. We show that lower travel costs increase not only the interaction...

We develop a model in which non-white individuals are defined with respect to their social environment (family, friends, neighbors) and their attachments to their culture of origin (religion, language), and in which jobs are mainly found through social networks. We found that, depending on how...

This note comments on two central issues for fiscal policy design in the UK, highlighted in the recent Code for Fiscal Stability' proposed by the new Labour government. The first concerns the merits of the so-called golden rule of public sector investment' -- the proposition that, over the...

This note comments on two central issues for fiscal policy design in the UK, highlighted in the recent Code for Fiscal Stability' proposed by the new Labour government. The first concerns the merits of the so-called golden rule of public sector investment' -- the proposition that, over the...