New Safe Approximation of Ambiguous Probabilistic Constraints for Financial Optimization Problem

NingNing Du, Yan-Kui Liu and Ying Liu

Discrete Dynamics in Nature and Society, 2019, vol. 2019, 1-19

Abstract:

In financial optimization problem, the optimal portfolios usually depend heavily on the distributions of uncertain return rates. When the distributional information about uncertain return rates is partially available, it is important for investors to find a robust solution for immunization against the distribution uncertainty. The main contribution of this paper is to develop an ambiguous value-at-risk (VaR) optimization framework for portfolio selection problems, where the distributions of uncertain return rates are partially available. For tractability consideration, we deal with new safe approximations of ambiguous probabilistic constraints under two types of random perturbation sets and obtain two equivalent tractable formulations of the ambiguous probabilistic constraints. Finally, to demonstrate the potential for solving portfolio optimization problems, we provide a practical example about the Chinese stock market. The advantage of the proposed robust optimization method is also illustrated by comparing it with the existing optimization approach via numerical experiments.

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnddns:6903679

DOI: 10.1155/2019/6903679

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