Trust and Manipulation in Social Networks
We investigate the role of manipulation in a model of opinion formation where agents have opinions about some common question of interest. Agents repeatedly communicate with their neighbors in the social network, can exert some effort to manipulate the trust of others, and update their opinions taking weighted averages of neighbors' opinions. The incentives to manipulate are given by the agents' preferences. We show that manipulation can modify the trust structure and lead to a connected society, and thus, make the society reaching a consensus. Manipulation fosters opinion leadership, but the manipulated agent may even gain influence on the long-run opinions. In sufficiently homophilic societies, manipulation accelerates (slows down) convergence if it decreases (increases) homophily. Finally, we investigate the tension between information aggregation and spread of misinformation. We find that if the ability of the manipulating agent is weak and the agents underselling (overselling) their information gain (lose) overall influence, then manipulation reduces misinformation and agents converge jointly to more accurate opinions about some underlying true state.
|Date of creation:||Sep 2013|
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- Gullberg, Anne Therese, 2008. "Lobbying friends and foes in climate policy: The case of business and environmental interest groups in the European Union," Energy Policy, Elsevier, vol. 36(8), pages 2954-2962, August.
- Büchel, Berno & Hellmann, Tim & Klößner, Stefan, 2013.
"Opinion Dynamics and Wisdom under Conformity,"
Annual Conference 2013 (Duesseldorf): Competition Policy and Regulation in a Global Economic Order
79770, Verein für Socialpolitik / German Economic Association.
- Berno Buechel & Tim Hellmann & Stefan Kölßner, 2014. "Opinion Dynamics and Wisdom under Conformity," Working Papers 2014.51, Fondazione Eni Enrico Mattei.
- Buechel, Berno & Hellmann, Tim & KlÃ¶ÃŸner, Stefan, 2014. "Opinion dynamics and wisdom under conformity," Center for Mathematical Economics Working Papers 469, Center for Mathematical Economics, Bielefeld University.
- Jean-François Caulier & Ana Mauleon & Vincent Vannetelbosch, 2015.
"Allocation rules for coalitional network games,"
Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers)
- Peter M. DeMarzo & Dimitri Vayanos & Jeffrey Zwiebel, 2003.
"Persuasion Bias, Social Influence, and Unidimensional Opinions,"
The Quarterly Journal of Economics,
Oxford University Press, vol. 118(3), pages 909-968.
- Peter M. DeMarzo & Dimitri Vayanos & Jeffrey Zwiebel, 2003. "Persuasion bias, social influence, and uni-dimensional opinions," LSE Research Online Documents on Economics 454, London School of Economics and Political Science, LSE Library.
- Zwiebel, Jeffrey H. & Vayanos, Dimitri & DeMarzo, Peter M., 2001. "Persuasion Bias, Social Influence, and Uni-Dimensional Opinions," Research Papers 1719, Stanford University, Graduate School of Business.
- Syngjoo Choi & Douglas Gale & Shachar Kariv, 2012.
"Social learning in networks: a Quantal Response Equilibrium analysis of experimental data,"
Review of Economic Design,
Springer;Society for Economic Design, vol. 16(2), pages 135-157, September.
- Shachar Kariv & Syngjoo Choi & Douglas Gale, 2007. "Social Learning in Networks: A Quantal Response Equilibrium Analysis of Experimental Data," Levine's Bibliography 843644000000000107, UCLA Department of Economics.
- Daron Acemoglu & Asuman Ozdaglar, 2011.
"Opinion Dynamics and Learning in Social Networks,"
Dynamic Games and Applications,
Springer, vol. 1(1), pages 3-49, March.
- Manuel Förster & Ana Mauleon & Vincent Vannetelbosch, 2013.
"Trust and Manipulation in Social Networks,"
Documents de travail du Centre d'Economie de la Sorbonne
13065, Université Panthéon-Sorbonne (Paris 1), Centre d'Economie de la Sorbonne.
- FORSTER, Manuel & MAULEON, Ana & VANNETELBOSCH, Vincent, 2013. "Trust and manipulation in social networks," CORE Discussion Papers 2013050, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Manuel Förster & Ana Mauleon & Vincent Vannetelbosch, 2013. "Trust and Manipulation in Social Networks," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00881145, HAL.
- Manuel Förster & Ana Mauleon & Vincent J. Vannetelbosch, 2014. "Trust and Manipulation in Social Networks," Working Papers 2014.50, Fondazione Eni Enrico Mattei.
- Benjamin Golub & Matthew O. Jackson, 2012. "How Homophily Affects the Speed of Learning and Best-Response Dynamics," The Quarterly Journal of Economics, Oxford University Press, vol. 127(3), pages 1287-1338.
- Daron Acemoglu & Munther A. Dahleh & Ilan Lobel & Asuman Ozdaglar, 2008.
"Bayesian Learning in Social Networks,"
NBER Working Papers
14040, National Bureau of Economic Research, Inc.
- Nigar Hashimzade & Jean Hindriks & Gareth D. Myles, 2006. "Solutions Manual to Accompany Intermediate Public Economics," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262582694, March.
- Acemoglu, Daron & Ozdaglar, Asuman & ParandehGheibi, Ali, 2010. "Spread of (mis)information in social networks," Games and Economic Behavior, Elsevier, vol. 70(2), pages 194-227, November.
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