Showing 1 - 10 of 11
Data drain and data uncertainties for rival units affect the reliability and effectiveness of strategic plans for individual operational units. This study introduces a stochastic, multi-stage, optimization technique for short-term forecasting that intends to assist policy makers in developing...
Persistent link: https://www.econbiz.de/10011259245
This paper constructs an alternative investment strategy to portfolio optimization model in the framework of the Mean–Variance portfolio selection model. To differentiate it from the ubiquitously applied Mean–Variance model, which is constructed on an assumption that returns are normally...
Persistent link: https://www.econbiz.de/10011259339
In the past environmental management practices have been based on disparate analysis of the impacts of pollutants on selected components of ecosystems. However, holistic analysis of emission reduction strategies is necessary to justify that actions taken to protect the environment would not...
Persistent link: https://www.econbiz.de/10005836399
We study properties of the solutions to a parametrized constrained optimization problem in Hilbert spaces. A special operator is studied which is of importance in economic theory; sufficient conditions are given for its existence, symmetry, and negative semidefiniteness. The techniques used are...
Persistent link: https://www.econbiz.de/10005837044
Portfolio optimisation for a Fund of Hedge Funds (“FoHF”) has to address the asymmetric, non-Gaussian nature of the underlying returns distributions. Furthermore, the objective functions and constraints are not necessarily convex or even smooth. Therefore traditional portfolio optimisation...
Persistent link: https://www.econbiz.de/10005059113
The study of the local characteristics of equilibrium positions generated by the constrained maximization of some criterion functions (such as utility, profit, cost, etc.) goes back to Antonelli's paper [2] of 1886. Certain local properties have been proved to be particularly fruitful for...
Persistent link: https://www.econbiz.de/10005617056
VOCs and NOx are the primary precursors in the formation of ground-level ozone (SMOG). The rate of formation is a function of concentrations, temperature and sunlight strength. Both pollutants as well as the ozone itself can be transported over very long distances. Therefore, it can affect...
Persistent link: https://www.econbiz.de/10005619968
90 Classical problems in economics are concerned with the solutions of several simultaneous nonlinear optimization problems, one for each consumer or producer, all facing constraints posed by the scarcity of resources. Often their interests conflict, and it is generally impossible to find a...
Persistent link: https://www.econbiz.de/10005621494
The estimation of a jump-diffusion model via Differential Evolution is presented. Finding the maximum likelihood estimator for such processes is a tedious task due to the multimodality of the likelihood function. The performance of the Differential Evolution algorithm is compared to standard...
Persistent link: https://www.econbiz.de/10008685051
Public universities in the Czech Republic suffer from insufficient funding for many years. One possibility for an increased funding of Czech public universities is an introduction of a low administrative fee called enrollment fee for each semester of a study. The aim of this article is to show...
Persistent link: https://www.econbiz.de/10011111644