Homothetic or Cobb-Douglas Behavior Through Aggregation
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Gael Giraud
A common theme in the theory of demand aggregation is that market demand can acquire properties which are not always individually present among the agents who make up that market, a phenomenon we call heteroiosis in this paper. This paper focusses on the well known result that with a suitable distribution of demand behavior (arising perhaps from the underlying distribution of preferences), market demand can become an approximately linear function of income or even take on approximately Cobb-Douglas properties. We highlight the mathematical arguments underpinning these models and show that in the right context, it is possible to carry the arguments further and achieve exact, rather than just approximate, results: exact Cobb-Douglas market demand or exact linearity of market demand with respect to income.
©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
