"Approximate Aggregation under Uncertainty"
Journal of Economic Theory,
Volume: 38 | Pages: 189-210
Publication type: Journal article
For a collection of agents with von Neumann-Morgenstern preferences, a price-independent income distribution, and identical probability beliefs, there exists a von Neumann-Morgenstern approximate aggregator. The risk tolerance of the approximate aggregator is equal to the sum of the individual agent risk tolerances at prices which yield constant, "risk-free," contingent consumption. The application of the approximate aggregator to standard asset pricing models in finance is discussed briefly.
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