The empirical literature on economic growth and development has moved from the study of
proximate determinants to the analysis of ever deeper, more fundamental factors, rooted in …

How do geographically concentrated income shocks influence the long-run spatial
distribution of poverty within a city? We examine the impact on housing prices of a cholera …

We use de-identified and aggregated data from Facebook to explore the spatial structure of
social networks in the New York metro area. We find that a substantial share of urban …

We develop a unified model embedding different behavioral mechanisms of social
interactions and design a statistical model selection test to differentiate between them in …

This paper explores the relationship between residential proximity of individuals from the
same ethnic group and the probability of finding a job through social networks, relative to …

We investigate whether, how, and why individual education attainment depends on the
educational attainment of schoolmates. Specifically, using longitudinal data on students and …

In this chapter, we provide an overview of research on neighborhoods and social networks
and their role in shaping behavior and economic outcomes. We include a discussion of …

We establish empirically using three different definitions of US cities that the upper tail obeys
a Pareto law and not a lognormal distribution. We emphasize estimation of a switching point …

This paper studies the role of strong versus weak ties in rural-to-urban migration decisions in
China. We develop a network model that puts forward the different roles of weak and strong …

Social networks are important in several facets of our lives. For example, the decision of an
agent whether or not to buy a new product, attend a meeting, commit a crime, or find a job is …