Filiz Garip, Cornell University: Elihu Katz Colloquium Speaker Series

"Networks, Diffusion, and Inequality"
25 Jan 2019 - 12:00pm to 1:00pm
Annenberg School for Communication, Room 500
ASC Only

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About the talk

Prior work defines network externalities (where the value of a practice is a function of network alters that have already adopted the practice) as a mechanism exacerbating social inequality under the condition of homophily (where advantaged individuals poised to be primary adopters are socially connected to other advantaged individuals). This work does not consider consolidation (correlation between traits), a population parameter that is essential to network formation and diffusion. Using a computational model, Garip first shows that prior findings linking homophily to segregated social ties and to differential diffusion outcomes are contingent on high levels of consolidation. Homophily, under low consolidation, is not sufficient to exacerbate existing differences in adoption probabilities across groups, and can even end up alleviating inter-group inequality by facilitating diffusion. Garip then applies this idea to the empirical case of Mexico-U.S. migration. She shows that homophily and consolidation allow us to capture the structural constraints to diffusion, and explains why some newly-emerging migrant communities eventually come to surpass historic migrant regions in levels of migration.

About Filiz Garip

Filiz Garip is Professor of Sociology at Cornell University. She is the Director of the Center for the Study of Economy and Society at Cornell. Her research lies at the intersection of migration, economic sociology, and inequality. Within this general area, she studies the mechanisms that enable or constrain mobility and lead to greater or lesser degrees of social and economic inequality. She is the author of the book On the Move: Changing Mechanisms of Mexico-U.S. Migration (Princeton University Press), which has received three best-book awards to date. Garip has also published a number of op-eds, most recently in the Washington Post.

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