We consider the portfolio optimization problem of maximizing the
asymptotic growth rate under a combination of fixed and
proportional costs. Expressing the asymptotic growth rate in terms
of the risky fraction process, the problem can be transformed to
that of controlling a diffusion in one dimension. Then we use the
corresponding quasivariational inequalities to obtain the explicit
shape together with the existence of an optimal impulse control
strategy. This optimal strategy is given by only four parameters:
two for the stopping boundaries and two for the new risky
fractions the investor chooses at these times.
@article{1165414586,
author = {Irle, Albrecht and Sass, J\"orn},
title = {Optimal portfolio policies under fixed and proportional transaction costs},
journal = {Adv. in Appl. Probab.},
volume = {38},
number = {4},
year = {2006},
pages = { 916-942},
language = {en},
url = {http://dml.mathdoc.fr/item/1165414586}
}
Irle, Albrecht; Sass, Jörn. Optimal portfolio policies under fixed and proportional transaction costs. Adv. in Appl. Probab., Tome 38 (2006) no. 4, pp. 916-942. http://gdmltest.u-ga.fr/item/1165414586/