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We investigate portfolio selection with alternative objective functions in a distributed computing environment. In particular, we optimise a portfolio's 'Omega' which is the ratio of two partial moments of the returns distributions. Since finding optimal portfolios under such performance...
Persistent link: https://www.econbiz.de/10003961715
We construct portfolios with an alternative selection criterion, the Omega function, which can be expressed as the ratio of two partial moments of the returns distribution. Finding Omega-optimal portfolios, in particular under realistic constraints like cardinality restrictions, requires to...
Persistent link: https://www.econbiz.de/10003966094
Hedge funds offer desirable risk-return profiles; but we also find high management fees, lack of transparency and worse, very limited liquidity (they are often closed to new investors and disinvestment fees can be prohibitive). This creates an incentive to replicate the attractive features of...
Persistent link: https://www.econbiz.de/10013143776
I entertain a generalization of the standard Bolzmann-Gibbs-Shannon measure of entropy in multiplier preferences of model uncertainty. Using this measure, I derive a generalized exponential certainty equivalent, which nests the exponential certainty equivalent of the standard Hansen-Sargent...
Persistent link: https://www.econbiz.de/10011701075
exact methods but only heuristics have been proposed so far.The aim of this paper is twofold. First, we present the first …
Persistent link: https://www.econbiz.de/10013106053
The algorithm for optimization of a credit portfolio has not been fully demonstrated. This paper fills the gap in the literature by presenting a general approach for optimizing a credit portfolio by minimizing the default risk of the entire portfolio. Default risk is measured with quadratic...
Persistent link: https://www.econbiz.de/10012817974
Hedge funds offer desirable risk-return profiles; but we also find high management fees, lack of transparency and worse, very limited liquidity (they are often closed to new investors and disinvestment fees can be prohibitive). This creates an incentive to replicate the attractive features of...
Persistent link: https://www.econbiz.de/10003979515
at present. Thus, to approximately solve this model we experience the heuristics Particle Swarm Optimization (PSO). Since …
Persistent link: https://www.econbiz.de/10013114329
We present efficient partial differential equation (PDE) methods for continuous time mean-variance portfolio allocation problems when the underlying risky asset follows a jump-diffusion. The standard formulation of mean-variance optimal portfolio allocation problems, where the total wealth is...
Persistent link: https://www.econbiz.de/10013084034
The importance of portfolio optimization in finance field has been increasing significantly. Although, portfolio optimization problems over a single period or multiple periods are studied extensively, the problem with an option to rebalance over multiple periods is not considered significantly....
Persistent link: https://www.econbiz.de/10013091376