Economy – Quantitative Finance – Portfolio Management
Scientific paper
2007-06-04
Economy
Quantitative Finance
Portfolio Management
21 pages, revised version. To appear in "Mathematical Finance".
Scientific paper
We perform a stability analysis for the utility maximization problem in a general semimartingale model where both liquid and illiquid assets (random endowments) are present. Small misspecifications of preferences (as modeled via expected utility), as well as views of the world or the market model (as modeled via subjective probabilities) are considered. Simple sufficient conditions are given for the problem to be well-posed, in the sense the optimal wealth and the marginal utility-based prices are continuous functionals of preferences and probabilistic views.
Kardaras Constantinos
Zitkovic Gordan
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