Motivated by empirical evidence on the interplay between geography, population density
and societal interaction, we propose a generative process for the evolution of social …

The size of cities is known to play a fundamental role in social and economic life. Yet, its
relation to the structure of the underlying network of human interactions has not been …

Social networks amplify inequalities by fundamental mechanisms of social tie formation such
as homophily and triadic closure. These forces sharpen social segregation, which is …

Mathematical models of social contagion that incorporate networks of human interactions
have become increasingly popular, however, very few approaches have tackled the …

Since the publication of “Complex Contagions and the Weakness of Long Ties” in 2007,
complex contagions have been studied across an enormous variety of social domains. In …

Social influence plays an important role in human behavior and decisions. Sources of
influence can be divided as external, which are independent of social context, or as …

The concept of contagion has steadily expanded from its original grounding in epidemic
disease to describe a vast array of processes that spread across networks, notably social …

Recent empirical studies using large-scale data sets have validated the Granovetter
hypothesis on the structure of the society in that there are strongly wired communities …

Electronic databases, from phone to e-mails logs, currently provide detailed records of
human communication patterns, offering novel avenues to map and explore the structure of …

Diffusion of information, behavioral patterns or innovations follows diverse pathways
depending on a number of conditions, including the structure of the underlying social …