Competitive Rumour Spread in Social Networks
نویسندگان
چکیده
We consider a setting in which two firms compete to spread rumors in a social network. Firms seed their rumors simultaneously and rumors propagate according to the linear threshold model. Using the concept of cascade centrality introduced by [19], we provide a sharp characterization of networks that admit pure-strategy Nash equilibria (PSNE). We provide tight bounds for the efficiency of these equilibria and for the inequality in firms’ equilibrium payoffs. The model can be extended to rumors of different persuasiveness.
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