I build a simple dynamic model of the formation of an international social network of importers and exporters. Firms … can only export into markets in which they have a contact. They acquire new contacts both at random, and via their network …

financial institutions. Focusing on a multi sector economy linked through a supply network, we show how structural properties of … the supply network determine both whether aggregate volatility disappears as the number of sectors increases (i … aggregate output from its mean) to sector-specific volatility and to the structural properties of the supply network …

I propose a network/search view of international trade in differentiated products. I present evidence that supports the …

We show that increasing the probability of obtaining a job offer through a network should raise the observed wages of … workers in jobs found through formal channels relative to those in jobs found through the network. This prediction holds at … are consistent with the primary effect of network strength being to increase the arrival rate of offers rather than to …

enrolment among households that are embedded in a family network. Eligible but isolated households do not respond. The mechanism … network from eligibles that receive de facto unconditional cash transfers from Progresa, towards eligibles on the margin of …

first characterize the biases in both network statistics and estimates of network effects under non-random sampling … theoretically and numerically. Sampled network data systematically bias the properties of observed networks and suffer from non … post-stratification weighting approaches to networked contexts, which enables researchers to recover several network …

assumption that the process starts with every node in the network having a signal. We study a natural extension of the DeGroot … agent. This characterization result then allows us to relate network geometry to information aggregation. We identify an … example of a network structure where essentially only the signal of a single agent is aggregated, which helps us pinpoint a …