Economy – Quantitative Finance – Portfolio Management
Scientific paper
2009-11-25
Economy
Quantitative Finance
Portfolio Management
11 pages
Scientific paper
A shadow price is a process lying within the bid/ask prices of a market with proportional transaction costs, such that maximizing expected utility from consumption in the frictionless market with this price process leads to the same maximal utility as in the original market with transaction costs. For finite probability spaces, this note provides an elementary proof for the existence of such a shadow price.
Kallsen Jan
Muhle-Karbe Johannes
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