Inertia in social learning from a summary statistic
AbstractWe model normal-quadratic social learning with agents who observe a summary statistic over past actions, rather than complete action histories. Because an agent with a summary statistic cannot correct for the fact that earlier actions influenced later ones, even a small presence of old actions in the statistic can introduce very persistent errors. Depending on how fast these old actions fade from view, social learning can either be as fast as if agents’ private information were pooled (rate n) or it can slow to a crawl (rate ln n). We also examine extensions to learning from samples of actions, learning about a moving target, heterogeneous preferences, and biases toward own information.
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Bibliographic InfoPaper provided by University Library of Munich, Germany in its series MPRA Paper with number 32143.
Date of creation: 2008
Date of revision: Jul 2011
social learning; herding; speed of learning;
Find related papers by JEL classification:
- D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
- D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search, Learning, and Information
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Sushil Bikhchandani & David Hirshleifer & Ivo Welch, 2010.
"A theory of Fads, Fashion, Custom and cultural change as informational Cascades,"
Levine's Working Paper Archive
1193, David K. Levine.
- Bikhchandani, Sushil & Hirshleifer, David & Welch, Ivo, 1992. "A Theory of Fads, Fashion, Custom, and Cultural Change in Informational Cascades," Journal of Political Economy, University of Chicago Press, vol. 100(5), pages 992-1026, October.
- Callander, Steven & Hörner, Johannes, 2009.
"The wisdom of the minority,"
Journal of Economic Theory,
Elsevier, vol. 144(4), pages 1421-1439.e, July.
- Ellison, Glenn & Fudenberg, Drew, 1992.
"Rules of Thumb for Social Learning,"
IDEI Working Papers
17, Institut d'Économie Industrielle (IDEI), Toulouse.
- G. Ellison & D. Fudenberg, 2010. "Rules of Thumb for Social Learning," Levine's Working Paper Archive 435, David K. Levine.
- Allison, G. & Fudenberg, D., 1992. "Rules of Thumb for Social Learning," Working papers 92-12, Massachusetts Institute of Technology (MIT), Department of Economics.
- Ellison, Glenn & Fudenberg, Drew, 1993. "Rules of Thumb for Social Learning," Scholarly Articles 3196332, Harvard University Department of Economics.
- Jacob Goeree & Thomas Palfrey & Brian Rogers, 2004.
"Self-Correcting Information Cascades,"
122247000000000153, UCLA Department of Economics.
- Goeree, Jacob & Palfrey, Thomas & Rogers, Brian & McKelvey, Richard, 2004. "Self-correcting Information Cascades," Working Papers 1197, California Institute of Technology, Division of the Humanities and Social Sciences.
- Jacob K. Goeree & Thomas R. Palfrey & Brian W. Rogers & Richard D. McKelvey, 2006. "Self-Correcting Information Cascades," Levine's Bibliography 321307000000000211, UCLA Department of Economics.
- Abhijit Banerjee & Drew Fudenberg, 2010.
"Word of Mouth Learning,"
Levine's Working Paper Archive
723, David K. Levine.
- Esther Duflo & Emmanuel Saez, 2003.
"The Role Of Information And Social Interactions In Retirement Plan Decisions: Evidence From A Randomized Experiment,"
The Quarterly Journal of Economics,
MIT Press, vol. 118(3), pages 815-842, August.
- Esther Duflo & Emmanuel Saez, 2002. "The Role of Information and Social Interactions in Retirement Plan Decisions: Evidence from a Randomized Experiment," NBER Working Papers 8885, National Bureau of Economic Research, Inc.
- Weizsäcker, Georg, 2008.
"Do We Follow Others When We Should? A Simple Test of Rational Expectations,"
IZA Discussion Papers
3616, Institute for the Study of Labor (IZA).
- Georg Weizsacker, 2010. "Do We Follow Others When We Should? A Simple Test of Rational Expectations," American Economic Review, American Economic Association, vol. 100(5), pages 2340-60, December.
- Georg Weizsacker, 2008. "Do we follow others when we should? A simple test of rational expectations," LSE Research Online Documents on Economics 4945, London School of Economics and Political Science, LSE Library.
- Bala, V. & Goyal, S., 1995.
"Learning from Neighbors,"
Econometric Institute Research Papers
EI 9549-/A, Erasmus University Rotterdam, Erasmus School of Economics (ESE), Econometric Institute.
- Esther Dufluo & Emmanuel Saez, 2003. "The role of information and social interactions in retirement plan decisions: Evidence from a randomized experiment," Framed Field Experiments 00141, The Field Experiments Website.
- 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.
- Peter M. Demarzo & Dimitri Vayanos & Jeffrey Zwiebel, 2003. "Persuasion Bias, Social Influence, And Unidimensional Opinions," The Quarterly Journal of Economics, MIT Press, vol. 118(3), pages 909-968, August.
- 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.
- A. Banerjee & Drew Fudenberg, 2010.
"Word-of-Mouth Communication and Social Learning,"
Levine's Working Paper Archive
425, David K. Levine.
- Vives, Xavier, 1993.
"How Fast Do Rational Agents Learn?,"
Review of Economic Studies,
Wiley Blackwell, vol. 60(2), pages 329-47, April.
- Lones Smith & Peter Sorensen, 2000.
"Pathological Outcomes of Observational Learning,"
Econometric Society, vol. 68(2), pages 371-398, March.
- Smith, L. & Sorensen, P., 1996. "Pathological Outcomes of Observational Learning," Working papers 96-19, Massachusetts Institute of Technology (MIT), Department of Economics.
- Smith, L. & Sorensen, P., 1996. "Pathological Outcomes of Observational Learning," Economics Papers 115, Economics Group, Nuffield College, University of Oxford.
- Munshi, Kaivan, 2004. "Social learning in a heterogeneous population: technology diffusion in the Indian Green Revolution," Journal of Development Economics, Elsevier, vol. 73(1), pages 185-213, February.
- Celen, Bogachan & Kariv, Shachar, 2004. "Observational learning under imperfect information," Games and Economic Behavior, Elsevier, vol. 47(1), pages 72-86, April.
- Banerjee, Abhijit V, 1992. "A Simple Model of Herd Behavior," The Quarterly Journal of Economics, MIT Press, vol. 107(3), pages 797-817, August.
- Vincent Mak & Rami Zwick, 2014. "Experimenting and learning with localized direct communication," Experimental Economics, Springer, vol. 17(2), pages 262-284, June.
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