Showing 1 - 10 of 336
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/10010951208
We examine how participation in a microfinance program diffuses through social networks. We collected detailed demographic and social network data in 43 villages in South India before microfinance was introduced in those villages and then tracked eventual participation. We exploit exogenous...
Persistent link: https://www.econbiz.de/10009397139
We use a network model of credit risk to measure market expectations of the potential spillovers from a sovereign default. Specifically, we develop an empirical model, based on the recent theoretical literature on contagion in financial networks, and estimate it with data on sovereign credit...
Persistent link: https://www.econbiz.de/10010950701
This paper examines the importance of buyer-supplier relationships, geography and the structure of the production network in firm performance. We develop a simple model where firms can outsource tasks and search for suppliers in different locations. Low search and outsourcing costs lead firms to...
Persistent link: https://www.econbiz.de/10011252663
Shareholder valuations are economically and statistically positively correlated with more powerful independent directors, their power gauged by social network power centrality measures. Sudden deaths of powerful independent directors significantly reduce shareholder value, consistent with...
Persistent link: https://www.econbiz.de/10010951070
The Schelling model of a "tipping point" in racial segregation, in which whites flee a neighborhood once a threshold of … nonwhites is reached, is a canonical model of strategic interdependence. The idea of "tipping" explaining segregation is widely …
Persistent link: https://www.econbiz.de/10004980318
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/10010796660
Because minorities typically fare poorly on standardized tests, job testing is thought to pose an equity-efficiency trade-off: testing improves selection but reduces minority hiring. We develop a conceptual framework to assess when this tradeoff is likely to apply and evaluate the evidence for...
Persistent link: https://www.econbiz.de/10005019433
The extent to which discrimination can explain racial wage gaps is one of the most divisive subjects in the social sciences. Using a newly available dataset, this paper develops a simple empirical test which, under plausible conditions, provides a lower bound on the extent of discrimination in...
Persistent link: https://www.econbiz.de/10009321287
We present evidence on changes in workplace segregation by education, race, ethnicity, and sex, from 1990 to 2000. The … evidence indicates that racial and ethnic segregation at the workplace level remained quite pervasive in 2000. At the same time …, there was fairly substantial segregation by skill, as measured by education. Putting together the 1990 and 2000 data, we …
Persistent link: https://www.econbiz.de/10005829948