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Portfolio management with robustness in both prediction and decision: A mixture model based learning approach
In: Journal of economic dynamics & control, Volume 48, p. 1-25
ISSN: 0165-1889
Time Consistency Issue in Multi‐Objective Optimization
In: Journal of multi-criteria decision analysis, Volume 18, Issue 1-2, p. 143-149
ISSN: 1099-1360
ABSTRACTWhen the conditions for applying Bellman's principle of optimality hold, the pre‐committed optimal policy derived by dynamic programming at initial time is time consistent, that is, the policy remains to be optimal for any state resulted in at later stages. In multi‐objective optimization with a general separable structure, the pre‐committed optimal policy derived by multi‐objective dynamic programming is time‐consistent in efficiency, that is, the policy derived at initial time remains to be efficient for any possible state at later stages, albeit not time‐consistent in general. However, when a multi‐objective dynamic optimization problem is not separable in the sense of multi‐objective dynamic programming, the derived pre‐committed policy is not time‐consistent in efficiency, as witnessed in the multi‐period mean‐variance portfolio selection problem studied in this paper, thus leading to some irrational decision behaviours. This revealed phenomenon recognizes the importance of the time consistency issue and calls our attentions to construct more suitable decision criteria in multi‐objective optimization. Copyright © 2011 John Wiley & Sons, Ltd.
Estimation of expected return integrating real-time asset prices implied information and historical data
In: Journal of economic dynamics & control, Volume 167, p. 104931
ISSN: 0165-1889
SSRN
Systemic risk of optioned portfolio: Controllability and optimization
In: Journal of economic dynamics & control, Volume 153, p. 104701
ISSN: 0165-1889
High-Dimensional Portfolio Optimization Based on Tree-Structured Factor Model
In: PBFJ-D-22-00479
SSRN
Systemic Risk of Optioned Portfolio: Controllability and Optimization
In: JEDC-D-23-00002
SSRN