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Mean-field-like behavior of the generalized voter-model-class kinetic Ising model
Sebastian M. Krause, Philipp Böttcher, Stefan Bornholdt
We analyze a kinetic Ising model with suppressed bulk noise which is a prominent representative of the generalized voter model phase transition. On the one hand we discuss the mode…
Opinion formation model for markets with a social temperature and fear
Sebastian M. Krause, Stefan Bornholdt
In the spirit of behavioral finance, we study the process of opinion formation among investors using a variant of the 2D Voter Model with a tunable social temperature. Further, a f…
eBay users form stable groups of common interest
Joerg Reichardt, Stefan Bornholdt
Market segmentation of an online auction site is studied by analyzing the users' bidding behavior. The distribution of user activity is investigated and a network of bidders connec…