… If there exists a chain of players m1,m2,...,mk such that mi ∈ B(mi−1) for each i ≥ 2 and m1
∈ B(n), we say that mk is in player n’s personal subnetwork ˆ B(n). A necessary condition for …

… Similarly, we say that B ⊂ N is strongly connected if T restricted to B is strongly connected.
This is true if and only if the nodes in B all lie on a cycle that involves only nodes in B. If T is …

… b required to produce a, and an intermediate product c required to produce b. Both inputs
are customized and must be sourced via specific supply relationships; neither product b nor …

We study cascades of failures in a network of interdependent financial organizations: how
discontinuous changes in asset values (eg, defaults and shutdowns) trigger further failures, …

We examine how the speed of learning and best-response processes depends on homophily:
the tendency of agents to associate disproportionately with those having similar traits. …

This chapter surveys the implications of some studies in network economics research for
economic development. We focus on information flow and risk-sharing—two topics where work …

… Benjamin Golub gratefully acknowledges financial support from The Pershing Square Fund
for Research on the Foundations of Human Behavior and the National Science Foundation (…

… Golub and Falk are postdoctoral trainees supported by training grants 5 Tl AI 194-05 and
5T1 AI 194-04, respectively, from the US Public Health Service, Washington, DC Requests for …

An economy can be thought of as a network in which the nodes are agents and links among
them represent heterogeneous opportunities for exchange or cooperation. This paper …

A variety of social and economic arrangements exist to facilitate the exchange of goods,
services, and information over gaps in social structure. Each of these arrangements bears some …