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MAXIMIZATION OF THE PORTFOLIO GROWTH RATE UNDER FIXED AND PROPORTIONAL TRANSACTION COSTS

By Jan Palczewski

Abstract

Abstract. This paper considers a discrete-time Markovian model of asset prices with economic factors and transaction costs with proportional and fixed terms. Existence of optimal strategies maximizing average growth rate of portfolio is proved in the case of complete and partial observation of the process modelling the economic factors. The proof is based on a modification of the vanishing discount approach. The main difficulty is the discontinuity of the controlled transition operator of the underlying Markov process. Key words: portfolio optimization, growth rate, transaction costs, incomplete information, Markov process, impulsive strategy, optimal control, vanishing discoun

Year: 2008
OAI identifier: oai:CiteSeerX.psu:10.1.1.134.3232
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