Showing 1 - 10 of 3,605
We examine the spread of a disease or behavior through a social network. In particular, we analyze how infection rates … first- and second order stochastic dominance relationships of the degree distribution in order to compare infection rates … across different social networks. …
Persistent link: https://www.econbiz.de/10005086847
The paper examines individuals’ abilities to identify the highly central people in their social networks, where … centrality is defined by diffusion centrality (Banerjee, Chandrasekhar, Duflo, and Jackson, 2013), which characterizes a nodeâ …€™s influence in spreading information. It first show that diffusion centrality nests standard centrality measures – degree …
Persistent link: https://www.econbiz.de/10011133172
We examine how three different communication processes operating through social networks are affected by homophily … on repeated averaging of neighbors' information and Markovian diffusion processes such as the Google random surfer model … friendship networks from the Adolescent Health dataset. …
Persistent link: https://www.econbiz.de/10005008021
The paper studies the impact of homophily on the optimal strategies of a monopolist, whose marketing campaign of new product relies on a word of mouth communication. Homophily is a tendency of people to interact more with those who are similar to them. In the model there are two types of...
Persistent link: https://www.econbiz.de/10008674339
We consider the spread of a harmful state through a population divided into two groups. Interaction patterns capture the full spectrum of assortativity possibilities. We show that a central planner who aims for eradication optimally either divides equally the resources across groups, or...
Persistent link: https://www.econbiz.de/10010568483
social networks act as substitutes in the diffusion of knowledge. …Although prior empirical research has established an association between science and the widespread diffusion of … investigates whether the knowledge diffusion associated with science-based innovation stems from the norm of openness and …
Persistent link: https://www.econbiz.de/10005495822
networks for which there is a convergence of beliefs. Finally, we survey some recent structural results on the speed of …
Persistent link: https://www.econbiz.de/10005423267
This paper considers a model of observational learning in social networks. Every period, the agents observe the actions … state, i.e. where every agent chooses the same action. Subsequently, we extend our analysis to infinitely large networks and …
Persistent link: https://www.econbiz.de/10011108866
We survey the literatures on the economic consequences of the structure of social networks. We develop a taxonomy of … 'macro' and 'micro' characteristics of social inter-action networks and discuss both the theoretical and empirical findings … concerning the role of those characteristics in determining learning, diffusion, decisions, and resulting behaviors. We also …
Persistent link: https://www.econbiz.de/10011165640
. However, as in much of sub-Saharan Africa, the adoption and diffusion of such technologies has been slow. We use data from the … fertiliser. We use the structure of spatial networks of farmers and panel data to identify these influences and find that while …
Persistent link: https://www.econbiz.de/10011084131