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Non-robustness of some economic models
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Kislaya Prasad
Published/Copyright:
May 8, 2003
This paper considers the robustness of optimal decisions in a model of monopoly and a model of competitive equilibrium in a securities market. Robustness, defined as payoffs being continuous with respect to perturbations in the underlying model, fails to hold for either model. Decision rules are made robust by appropriately "smoothing" the problem, and by decreasing the weight given to small details of belief that can cause large changes in optimal payoffs.
Published Online: 2003-5-8
©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
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Articles in the same Issue
- Topics Article
- Non-robustness of some economic models
- Incentives for Boundedly Rational Agents
- On Non-responsiveness in Adverse Selection Models with Common Value
- Contributions Article
- Competitive Equilibria With Incomplete Markets and Endogenous Bankruptcy
- A One-Period Version of Rubinstein's Bargaining Game
- Upgrading, Degrading, and Intertemporal Price Discrimination
- Adverse Selection and Insurance Contracting: A Rank-Dependent Utility Analysis
- Incomplete Contracts with Cross-Investments
- Communication and Voting with Double-Sided Information
- Signal Jamming in Games with Multiple Senders
- Homothetic or Cobb-Douglas Behavior Through Aggregation
- Advances Article
- The Generalized Linear Production Model: Solvability, Nonsubstitution and Productivity Measurement
- Contagion and State Dependent Mutations
- Rationalization and Incomplete Information
- Contractual Externalities and Common Agency Equilibria
- Market Research and Market Design
