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Diffusion In Complex Social Networks

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Author Info
Dunia López-Pintado () (Universidad de Alicante)

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Abstract

This paper studies the problem of spreading a product (an idea or a technology) among agents in a social network. An agent obtains the product with a probability that depends on the spreading rate (or degree of contagion) of the product as well as on the behaviour of the agent?s neighbours. This paper shows, using a mean field approach, that there exists a threshold for the spreading rate that shapes the pattern of the product?s diffusion. This threshold, that depends on the network structure and the mechanism of contagion, determines whether the product spreads and becomes persistent or it does not spread and vanishes.

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File URL: http://www.ivie.es/downloads/docs/wpasad/wpasad-2004-33.pdf
File Format: application/pdf
File Function: Fisrt version / Primera version, 2004
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Publisher Info
Paper provided by Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie) in its series Working Papers. Serie AD with number 2004-33.

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Length: 28 pages
Date of creation: Sep 2004
Date of revision:
Publication status: Published by Ivie
Handle: RePEc:ivi:wpasad:2004-33

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Related research
Keywords: social networks diffusion contagion.

Find related papers by JEL classification:
C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games

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Cited by:
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  1. Andrea Galeotti & Sanjeev Goyal, 2007. "Games of Social Influence," Economics Discussion Papers 639, University of Essex, Department of Economics. [Downloadable!]
  2. Matthew O. Jackson & Brian W. Rogers, 2005. "Search in the Formation of Large Networks: How Random are Socially Generated Networks?," Game Theory and Information 0503005, EconWPA. [Downloadable!]
    Other versions:
  3. Andrea Galeotti & Sanjeev Goyal, 2007. "A Theory of Strategic Diffusion," Economics Discussion Papers 635, University of Essex, Department of Economics. [Downloadable!]
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