How Homophily Affects the Speed of Learning and Best-Response Dynamics
AbstractWe examine how the speed of learning and best-response processes depends on homophily: the tendency of agents to associate disproportionately with those having similar traits. When agents' beliefs or behaviors are developed by averaging what they see among their neighbors, then convergence to a consensus is slowed by the presence of homophily but is not influenced by network density (in contrast to other network processes that depend on shortest paths). In deriving these results, we propose a new, general measure of homophily based on the relative frequencies of interactions among different groups. An application to communication in a society before a vote shows how the time it takes for the vote to correctly aggregate information depends on the homophily and the initial information distribution. JEL Codes: D83, D85, I21, J15, Z13 Copyright 2012, Oxford University Press.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
Bibliographic InfoArticle provided by Oxford University Press in its journal The Quarterly Journal of Economics.
Volume (Year): 127 (2012)
Issue (Month): 3 ()
Contact details of provider:
Find related papers by JEL classification:
- D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search, Learning, and Information
- D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation
- I21 - Health, Education, and Welfare - - Education - - - Analysis of Education
- J15 - Labor and Demographic Economics - - Demographic Economics - - - Economics of Minorities, Races, Indigenous Peoples, and Immigrants; Non-labor Discrimination
- Z13 - Other Special Topics - - Cultural Economics - - - Economic Sociology; Economic Anthropology; Social and Economic Stratification
You can help add them by filling out this form.
CitEc Project, subscribe to its RSS feed for this item.
- Tim Hellmann & Mathias Staudigl, 2012.
"Evolution of social networks,"
Working Papers, Bielefeld University, Center for Mathematical Economics
470, Bielefeld University, Center for Mathematical Economics.
- Hellmann, Tim & Staudigl, Mathias, 2014. "Evolution of social networks," European Journal of Operational Research, Elsevier, Elsevier, vol. 234(3), pages 583-596.
- Daron Acemoglu & Azarakhsh Malekian & Asuman E. Ozdaglar, 2013.
"Network Security and Contagion,"
Levine's Working Paper Archive
786969000000000797, David K. Levine.
- Leguizamon, Sebastian & Leguizamon, Susane & Christafore, David, 2013. "Education, race and revealed attitudes towards homosexual couples," MPRA Paper 47068, University Library of Munich, Germany.
- FORSTER, Manuel & MAULEON, Ana & VANNETELBOSCH, Vincent, 2013.
"Trust and manipulation in social networks,"
CORE Discussion Papers, UniversitÃ© catholique de Louvain, Center for Operations Research and Econometrics (CORE)
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," UniversitÃ© Paris1 PanthÃ©on-Sorbonne (Post-Print and Working Papers), HAL halshs-00881145, HAL.
- Manuel Förster & Ana Mauleon & Vincent J. Vannetelbosch, 2014. "Trust and Manipulation in Social Networks," Working Papers, Fondazione Eni Enrico Mattei 2014.50, Fondazione Eni Enrico Mattei.
- Manuel Förster & Ana Mauleon & Vincent Vannetelbosch, 2013. "Trust and Manipulation in Social Networks," Documents de travail du Centre d'Economie de la Sorbonne, UniversitÃ© PanthÃ©on-Sorbonne (Paris 1), Centre d'Economie de la Sorbonne 13065, Université Panthéon-Sorbonne (Paris 1), Centre d'Economie de la Sorbonne.
- Liangjie Zhao & Wenqi Duan, 2014. "Simulating the Evolution of Market Shares: The Effects of Customer Learning and Local Network Externalities," Computational Economics, Society for Computational Economics, Society for Computational Economics, vol. 43(1), pages 53-70, January.
- Elsner, Benjamin & Narciso, Gaia & Thijssen, Jacco J. J., 2013.
"Migrant Networks and the Spread of Misinformation,"
IZA Discussion Papers
7863, Institute for the Study of Labor (IZA).
- Benjamin Elsner & Gaia Narciso & Jacco J. J. Thijssen, 2014. "Migrant Networks and the Spread of Misinformation," CReAM Discussion Paper Series, Centre for Research and Analysis of Migration (CReAM), Department of Economics, University College London 1403, Centre for Research and Analysis of Migration (CReAM), Department of Economics, University College London.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Oxford University Press) or (Christopher F. Baum).
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.