Saturation Effect and Cyclical Herd Behavior
We analyze a sequential decision model, where in every period a new agent seeks to determine the payoff of some actions. Every agent receives a possibly uninformative signal about the payoffs, and she observes previous choices. Some actions have a saturation effect; i.e., their payoffs become zero if used repeatedly too often albeit the original payoff is recovered later. We show that in every equilibrium and for almost every equilibrium play path, an action will trigger a cyclical herd behavior. We also show that the length of the transition phase between two consecutive herd behavior is at most the time needed to recover from the saturation effect. We thus give an alternative explanation to Kirman (1993) for the cyclicity of herd behavior, based on the negative externality generated by the repeated use of the same action.
|Date of creation:||2006|
|Contact details of provider:|| Postal: Maynooth, Co. Kildare|
Web page: http://www.maynoothuniversity.ie/economics-finance-and-accounting
More information through EDIRC
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.:
- Scharfstein, David. & Stein, Jeremy C., 1988.
"Herd behavior and investment,"
WP 2062-88., Massachusetts Institute of Technology (MIT), Sloan School of Management.
- Alan Kirman, 1993. "Ants, Rationality, and Recruitment," The Quarterly Journal of Economics, Oxford University Press, vol. 108(1), pages 137-156.
- 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.
- 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.
- Katz, Michael L & Shapiro, Carl, 1985. "Network Externalities, Competition, and Compatibility," American Economic Review, American Economic Association, vol. 75(3), pages 424-440, June.
When requesting a correction, please mention this item's handle: RePEc:may:mayecw:n1690906. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ()
If references are entirely missing, you can add them using this form.