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. When the so-called disutility function is taken as the identity function, the optimization problem is solved for a risk … procedure quadprog within MATLAB. When the disutility function is taken as a convex increasing function, the problem at hand is … effects of two disutility functions as well as to examine the convergence behavior of the Monte Carlo estimation approach. …
Persistent link: https://www.econbiz.de/10010731653
. When the so-called disutility function is taken as the identity function, the optimization problem is solved for a risk … procedure quadprog within MATLAB. When the disutility function is taken as a convex increasing function, the problem at hand is … effects of two disutility functions as well as to examine the convergence behavior of the Monte Carlo estimation approach. …
Persistent link: https://www.econbiz.de/10004972213
In this paper portfolio problems with linear loss functions and multivariate elliptical distributed returns are studied. We consider two risk measures, Value-at-Risk and Conditional-Value-at-Risk, and two types of decision makers, risk neutral and risk averse. For Value-at-Risk, we show that the...
Persistent link: https://www.econbiz.de/10005505034
Value-at-risk (VaR) and conditional value-at-risk (CVaR) are popular risk measures from academic, industrial and regulatory perspectives. The problem of minimizing CVaR is theoretically known to be of a Neyman-Pearson type binary solution. We add a constraint on expected return to investigate...
Persistent link: https://www.econbiz.de/10010338351
We provide an accurate closed-form expression for the expected shortfall of linear portfolios with elliptically distributed risk factors. Our results aim to correct inaccuracies that originate in Kamdem (2005) and are present also in at least thirty other papers referencing it, including the...
Persistent link: https://www.econbiz.de/10011619035
This article proposes a multi-currency cross-hedging strategy that minimizes the exchange risk. The use of derivatives in small and medium-sized enterprises (SMEs) is not common but, despite its complexity, can be interesting for those with international activities. In particular, the reduction...
Persistent link: https://www.econbiz.de/10011821658
In this paper we examine the usefulness of multivariate semi-parametric GARCH models for evaluating the Value-at-Risk (VaR) of a portfolio with arbitrary weights. We specify and estimate several alternative multivariate GARCH models for daily returns on the S&P 500 and Nasdaq indexes. Examining...
Persistent link: https://www.econbiz.de/10010731535
Several approaches exist to model decision making under risk, where risk can be broadly defined as the effect of variability of random outcomes. One of the main approaches in the practice of decision making under risk uses mean-risk models; one such well-known is the classical Markowitz model,...
Persistent link: https://www.econbiz.de/10010837973
Several approaches exist to model decision making under risk, where risk can be broadly defined as the effect of variability of random outcomes. One of the main approaches in the practice of decision making under risk uses mean-risk models; one such well-known is the classical Markowitz model,...
Persistent link: https://www.econbiz.de/10004972217
While it is common knowledge that portfolio separation in a continuous-time lognormal market is due to the basic properties of the Gaussian distribution, the usual textbook exposition relies on dynamic programming and thus Itô stochastic calculus and the appropriate regularity conditions. This...
Persistent link: https://www.econbiz.de/10009787073