over and above physical proximity. These results suggest data from online social networks can be useful to epidemiologists …

We use anonymized and aggregated data from Facebook to explore the spatial structure of social networks in the New York … metro area. We highlight the importance of transportation infrastructure in shaping urban social networks by showing that … distance is. We also document significant heterogeneity in the geographic breadth of social networks across New York zip codes …

In this paper, we investigate political communications in social networks characterized both by homophily–a tendency to … diffusion in social networks with homophily and two groups: conservatives and liberals. The model predicts that, with homophily …

social networks. Near the peak of the Omicron wave, doctor- and nurse-produced videos were disseminated to 17.8 million …

We explore the links between social capital and labor market networks at the neighborhood level. We harness rich data … networks, data on behavior such as voting patterns that have previously been tied to social capital, and new data – not … neighborhood-level variation in labor market networks. We find evidence suggesting that smaller and less centralized schools, and …

the networks developed by immigrants at CIC tend to be larger. Immigrants report substantially greater rates of giving and …