Showing 1 - 9 of 9
Persistent link: https://www.econbiz.de/10012588159
, we conducted a large-scale messaging campaign in West Bengal, India. Twenty-five million individuals were sent an SMS …
Persistent link: https://www.econbiz.de/10012481352
Formal financial institutions can have far-reaching and long-lasting impacts on informal lending and information networks. We first study 75 villages in Karnataka, 43 of which were exposed to microfinance after we first collected detailed network data. Networks shrink more in exposed villages....
Persistent link: https://www.econbiz.de/10012482583
How should policymakers disseminate information: by broadcasting it widely (e.g., via mass media), or letting word spread from a small number of initially informed "seed" individuals? While conventional wisdom suggests delivering information more widely is better, we show theoretically and...
Persistent link: https://www.econbiz.de/10012453041
, we show that in rural India, for example, ARD surveys are 80% cheaper than full network surveys …
Persistent link: https://www.econbiz.de/10012455190
This paper studies costly network formation in the context of risk sharing. Neighboring agents negotiate agreements as in Stole and Zwiebel (1996), which results in the social surplus being allocated according to the Myerson value. We uncover two types of inefficiency: overinvestment in social...
Persistent link: https://www.econbiz.de/10012457996
Can we identify the members of a community who are best- placed to diffuse information simply by asking a random sample of individuals? We show that boundedly-rational individuals can, simply by tracking sources of gossip, identify those who are most central in a network according to "diffusion...
Persistent link: https://www.econbiz.de/10012458245
We define a general class of network formation models, Statistical Exponential Random Graph Models (SERGMs), that nest standard exponential random graph models (ERGMs) as a special case. We provide the first general results on when these models' (including ERGMs) parameters estimated from the...
Persistent link: https://www.econbiz.de/10012458390
Absence of well-functioning formal institutions leads to reliance on social networks to enforce informal contracts. Social ties may aid cooperation, but agents vary in network centrality, and this hierarchy may hinder cooperation. To assess the extent to which networks substitute for...
Persistent link: https://www.econbiz.de/10012458407