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Gossip: Identifying Central Individuals in a Social Network

Duflo, Esther; Jackson, Matthew O.; Banerjee, Abhijit; … - National Bureau of Economic Research (NBER) - 2014

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

The Diffusion of Microfinance

Duflo, Esther; Jackson, Matthew O.; Banerjee, Abhijit; … - National Bureau of Economic Research (NBER) - 2012

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

Contagion in the European Sovereign Debt Crisis

Glover, Brent; Richards-Shubik, Seth - National Bureau of Economic Research (NBER) - 2014

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

Production Networks, Geography and Firm Performance

Bernard, Andrew B.; Moxnes, Andreas; Saito, Yukiko U. - National Bureau of Economic Research (NBER) - 2015

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

Powerful Independent Directors

Morck, Randall; Fogel, Kathy; Ma, Liping - National Bureau of Economic Research (NBER) - 2014

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

Empirics of Strategic Interdependence: The Case of the Racial Tipping Point

Easterly, William - National Bureau of Economic Research (NBER) - 2009

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

Tractable and Consistent Random Graph Models

Jackson, Matthew O.; Chandrasekhar, Arun G. - National Bureau of Economic Research (NBER) - 2014

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

Will Job Testing Harm Minority Workers?

Autor, David; Scarborough, David - National Bureau of Economic Research (NBER) - 2004

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

Racial Disparities in Job Finding and Offered Wages

Fryer, Roland; Pager, Devah; Spenkuch, Jörg L. - National Bureau of Economic Research (NBER) - 2011

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

Changes in Workplace Segregation in the United States between 1990 and 2000: Evidence from Matched Employer-Employee Data

Hellerstein, Judith K.; Neumark, David; McInerney, Melissa - National Bureau of Economic Research (NBER) - 2007

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

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