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seminar palermo 23 may 15.30

May 23, 2012

Prof Ehud Leher

Title: Competitive equilibrium as a ranking mechanism (with Ady Pauzner)

Abstract: We use competitive prices in a model of exchange economy to generate ranking
over nodes (e.g., web pages, articles, friends) in a network. We show that the widely
used Google’s PageRank comes as a special case when the nodes are represented by
Cobb-Douglas utility maximizers. We further use the economic metaphor to combine between
(normalized) citation index and PageRank by imposing tax on consumers and redistribute
the resulting revenue among them.

slides

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