Showing 1 - 10 of 24,687
Decision-makers who usually face model/parameter risk may prefer to act prudently by identifying optimal contracts that … solved. Numerical experiments are run for various risk preference choices and it is found that for relatively large sample … the modeler puts on the tail risk when defining its objective function. These findings suggest that one should be very …
Persistent link: https://www.econbiz.de/10012900182
We implement a long-horizon static and dynamic portfolio allocation involving a risk-free and a risky asset. This model …
Persistent link: https://www.econbiz.de/10008797745
Value-at-risk (VaR) and conditional value-at-risk (CVaR) are popular risk measures from academic, industrial and … investor is faced with a Markowitz type of risk reward problem at the final horizon, where variance as a measure of risk is …
Persistent link: https://www.econbiz.de/10010338351
investment periods is the conditional risk mapping approach. The idea is to develop a model in which information from the … optimization problem with rebalancing in a more time-efficient way when coherent risk measures are used. Artzner et al. (1999 …) outlined a set of mathematical properties for a risk measure that reflect the interests of risk-averse investors. Furthermore …
Persistent link: https://www.econbiz.de/10013091376
Adjustable Robust Optimization (ARO) yields, in general, better worst-case solutions than static Robust Optimization (RO). However, ARO is computationally more difficult than RO. In this paper, we derive conditions under which the worst-case objective values of ARO and RO problems are equal. We...
Persistent link: https://www.econbiz.de/10013014822
divided for an improvement in the worst-case objective value. Based on this theory, we propose several splitting heuristics …
Persistent link: https://www.econbiz.de/10013005868
In this paper, we focus on the portfolio optimization problem associated to a quasiconvex risk measure (satisfying some … additional assumptions). For coherent/convex risk measures, the portfolio optimization problem has been already studied by … characterize optimal solutions of the portfolio problem associated to quasiconvex risk measures. The shape of the efficient …
Persistent link: https://www.econbiz.de/10013080278
This paper originally proposes two unique closed-form solutions, respectively to risky assets only and a risk …, this curve intersects the mean-skewness plane of the portfolio return wtih zero-variance (zero-risk) at a line. Calculating … performance of the risk-adjusted returns of market portfolio. The ratio is similar to the Sharpe ratio, moreover, under the more …
Persistent link: https://www.econbiz.de/10012029423
We provide results for an efficient analytical valuation of partial moments of the multivariate Gaussian distribution over convex polyhedrons to aid the solution, sensitivity analysis and structural analysis of a large number of two-stage resource acquisition and allocation problems. These...
Persistent link: https://www.econbiz.de/10014184708
This paper addresses the problem of utility maximization under uncertain parameters. In contrast with the classical approach, where the parameters of the model evolve freely within a given range, we constrain them via a penalty function. We show that this robust optimization process can be...
Persistent link: https://www.econbiz.de/10014096889