Abstract
We study a probabilistic portfolio optimization model in which trading restrictions modeled with combinatorial constraints are accounted for. We provide several deterministic reformulations equivalent to this stochastic programming problem and discuss their computational efficiency. The reformulated problem takes the form of a mixed-integer nonlinear problem and is solved with an exact outer approximation algorithm. This latter is based on the early recognition of the problem structure and permits a hierarchical organization of the computations. Computational tests show the contribution of the proposed algorithm that outperforms the Cplex 12.4 solver in terms of computational time and quality of the obtained solutions.
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Lejeune, M.A. (2013). Portfolio Optimization with Combinatorial and Downside Return Constraints. In: Zuluaga, L., Terlaky, T. (eds) Modeling and Optimization: Theory and Applications. Springer Proceedings in Mathematics & Statistics, vol 62. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8987-0_2
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DOI: https://doi.org/10.1007/978-1-4614-8987-0_2
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