نتایج جستجو برای: product portfolio optimization

تعداد نتایج: 605036  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1389

this study was conducted to investigate the impact of portfolio assessment as a process-oriented assessment mechanism on iranian efl students’ english writing and its subskills of focus, elaboration, organization, conventions, and vocabulary. out of ninety juniors majoring in english literature and translation at the university of isfahan, sixty one of them who were at the same level of writing...

Journal: :Entropy 2017
Paulo Rotela Junior Luiz Célio Souza Rocha Giancarlo Aquila Pedro Paulo Balestrassi Rogério Santana Peruchi Liviam Soares Lacerda

Recently, different methods have been proposed for portfolio optimization and decision making on investment issues. This article aims to present a new method for portfolio formation based on Data Envelopment Analysis (DEA) and Entropy function. This new portfolio optimization method applies DEA in association with a model resulting from the insertion of the Entropy function directly into the op...

Journal: :International Journal of Quality & Reliability Management 2008

Journal: :Decision Sciences 2010
Yuwen Chen Janice E. Carrillo Asoo J. Vakharia Peter Sin

Devices that integrate multiple functions together are popular in consumer electronic markets. Examples include the cellular phone that takes digital pictures and plays MP3’s, the PDA with cell phone, and multi-function office machines. We describe these multi-function devices as fusion products since they fuse together products which traditionally stand alone in the marketplace. In this paper,...

Journal: :تحقیقات مالی 0
حسن حیدری استادیار دانشکده اقتصاد و مدیریت دانشگاه ارومیه، ایران احمد ملا بهرامی دانشجوی تحصیلات تکمیلی دانشکده اقتصاد و مدیریت دانشگاه ارومیه، ایران

in this paper, in order to optimize the portfolio consisting of selected industrial stocks of petroleum products, automobiles and parts, electrical industry and extraction of minerals from tehran stock exchange member, first, time – varying conditional covariance matrix has been estimated based on the following multivariate garch models: diagonal-vech (1,1), ccc (1,1) and diagonal -bekk (1,1). ...

2017
Thorsten Hens Marc Oliver Rieger

In this paper, we first show that for classical rational investors with correct beliefs and constant absolute or constant relative risk aversion, the utility gains from structured products over and above a portfolio consisting of the risk-free asset and the market portfolio are typically much smaller than their fees. This result holds irrespectively of whether the investors can continuously tra...

2017
KIYOHARU TAGAWA

A new approach to solve Chance constrained Portfolio Optimization Problems (CPOPs) without using the Monte Carlo simulation is proposed. Specifically, according to Chebyshev inequality, the prediction interval of a stochastic function value included in CPOP is estimated from a set of samples. By using the prediction interval, CPOP is transformed into Lower-bound Portfolio Optimization Problem (...

2005
Nadezhda Safronova Isabella Huber

This paper analyses the stable distributional approach for portfolio optimisation. We consider a portfolio optimization problem under the assumption of normal (Gaussian) and stable (nonGaussian) distributed asset returns. We compare the results of portfolio allocations in normal and stable cases.

2008
Lauren Hannah Warren Powell Jeffrey Stewart

This paper provides an overview of the one-stage R&D portfolio optimization problem. It provides a novel problem model that can be solved with stochastic combinatorial optimization methods. Current solution methods are reviewed an a new method, Stochastic Gradient Portfolio Optimization (SGPO), is proposed. We proved global convergence under certain conditions. SGPO is numerically compared to c...

Journal: :Operations Research 2006
Frank Lutgens Jos F. Sturm Antoon W. J. Kolen

The paper considers robust optimization to cope with uncertainty about the stock return process in one period option hedging problems. The robust approach relates portfolio choice to uncertainty, making more cautious hedges when uncertainty is high. We represent uncertainty by a set of plausible expected returns of the underlying stocks and show that for this set the robust problem is a second ...

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