Social Learning in a Changing World
In the social learning model of Banerjee and Bikhchandani, Hirshleiger and Welch, individuals take action sequentially after observing the history of actions taken by the predecessors and an informative private signal. If the state of the world is changing stochastically over time during the learing process, only temporary informational cascades - situations where socially valuable information is wasted - can arise. Furthermore, no cascade ever arises when the environment changes in a sufficiently unpredictable way.
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- Godfrey Keller & Sven Rady, 1997.
"Optimal Experimentation in a Changing Environment,"
STICERD - Theoretical Economics Paper Series
333, Suntory and Toyota International Centres for Economics and Related Disciplines, LSE.
- Smith, L. & Sorensen, P., 1996.
"Pathological Outcomes of Observational Learning,"
96-19, Massachusetts Institute of Technology (MIT), Department of Economics.
- Smith, L, 1996.
"Social Learning in a Changing World,"
96-34, Massachusetts Institute of Technology (MIT), Department of Economics.
- Banerjee, Abhijit V, 1992. "A Simple Model of Herd Behavior," The Quarterly Journal of Economics, MIT Press, vol. 107(3), pages 797-817, August.
- Aldo Rustichini & Asher Wolinsky, 1992.
"Learning about Variable Demand in the Long Run,"
1015, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
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