Abstract
We analyze a sequential decision model in which each decision maker looks at the decisions made by previous decision makers in taking her own decision. This is rational for her because these other decision makers may have some information that is important for her. We then show that the decision rules that are chosen by optimizing individuals will be characterized by herd behavior; i.e., people will be doing what others are doing rather than using their information. We then show that the resulting equilibrium is inefficient.
Keywords
Simple (philosophy)Herd behaviorEconomicsHerdMathematical economicsVolume (thermodynamics)EconometricsPositive economicsPhilosophyHistoryEpistemologyArchaeologyMedicinePhysicsVeterinary medicineThermodynamicsHerding
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Publication Info
- Year
- 1992
- Type
- article
- Volume
- 107
- Issue
- 3
- Pages
- 797-817
- Citations
- 6368
- Access
- Closed
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Cite This
Abhijit Banerjee
(1992).
A Simple Model of Herd Behavior.
The Quarterly Journal of Economics
, 107
(3)
, 797-817.
https://doi.org/10.2307/2118364
Identifiers
- DOI
- 10.2307/2118364