Geography and social links shape economic interactions. In industries, schools, and markets,
the entire network determines outcomes. This paper analyzes a large class of games and …

We provide new results regarding the identification of peer effects. We consider an extended
version of the linear-in-means model where interactions are structured through a social …

This paper considers incentives to provide goods that are non-excludable along social or
geographic links. We find, first, that networks can lead to specialization in public good provision…

To illustrate, consider a rural population and ask how people might link by marriage in order
to establish risk-sharing relations.(There is evidence in India, for example, that families …

Considerable progress has been made in generating fully functional and transplantable
dopamine neurons from human embryonic stem cells (hESCs). Before these cells can be used …

We survey the recent, fast-growing literature on peer effects in networks. An important
recurring theme is that the causal identification of peer effects depends on the structure of the …

… In Chapter 5, Yann Bramoullé and Rachel Kranton review the literature on games played
on fixed networks. In these models, while agents interact with their direct neighbors only, …

We provide the first analysis of altruism in networks. Agents are embedded in a fixed network
and care about the well‐being of their network neighbors. Depending on incomes, they …

This paper considers the formation of risk-sharing networks. Following empirical findings,
we build a model where pairs form links, but a population cannot coordinate links. As a …

We provide the first empirical application of a new approach proposed by Lee (Journal of
Econometrics 2007; 140(2), 333–374) to estimate peer effects in a linear‐in‐means model …