نتایج جستجو برای: variance markowitz model

تعداد نتایج: 2179024  

2011
John E. Mitchell Stephen Braun

The inclusion of transaction costs is an essential element of any realistic portfolio optimization. In this paper, we extend the standard portfolio problem to consider convex transaction costs that are incurred to rebalance an investment portfolio. Market impact costs measure the effect on the price of a security that result from an effort to buy or sell the security, and they can constitute a ...

2012
Erling D. Andersen Joachim Dahl Henrik A. Friberg

In this tutorial paper we introduce different approaches to Markowitz portfolio optimization, and we show how to solve such problems in MATLAB, R and Python using the MOSEK optimization toolbox for MATLAB, the Rmosek package, and the MOSEK Python API, respectively. We first consider conic formulations of the basic portfolio selection problem, and we then discuss more advanced models for transac...

Journal: :Optimization Methods and Software 2013
John E. Mitchell Stephen Braun

The inclusion of transaction costs is an essential element of any realistic portfolio optimization. In this paper, we consider an extension of the standard portfolio problem in which convex transaction costs are incurred to rebalance an investment portfolio. In particular, we consider linear, piecewise linear, and quadratic transaction costs. The Markowitz framework of mean-variance efficiency ...

2012
Yufu Ning Limei Yan Yanhong Xie

The mean-variance model proposed by Markowitz has received greatly acceptance as a practical methodology to manage portfolio selection, and has been widely extended in a variety of literatures. The aim of this paper is to extend the mean-variance model in uncertain decision systems. We present a new mean-TVaR model for portfolio selection when the returns of securities are described as uncertai...

Journal: :International Journal of Global Operations Research 2021

The Mining and Energy sector is a major foreign exchange earner, provides the largest energy resource, as an absorber of labor. In addition, most resources used in Indonesian economy come from mining. namely oil coal. Investment for mining exploration Indonesia needs to be priority continue encouraged maintain level reserves raw materials future industrial development, including downstream. Thi...

2006
Alex Kung-Hsiung Chang Chen Chueh-Chi

This paper uses a grey forecasting model GM(1,1) on improving the investment performance of classical Markowitz efficiency frontier’s investment portfolio using the component markets’ indexes of MSCI World Index from 1999 to 2005 as the samples. Using grey Markowitz efficiency frontier’s investment portfolio models, we establish a more stable and correct connection between ex-ante model and ex-...

Journal: :Risk and Decision Analysis 2009
Zhidong Bai Huixia Liu Wing-Keung Wong

This paper extends the work of Markowitz (1952), Korkie and Turtle (2002) and others by first proving that the traditional estimate for the optimal return of self-financing portfolios always overestimates from its theoretic value. To circumvent the problem, we develop a bootstrap estimate for the optimal return of self-financing portfolios and prove that this estimate is consistent with its cou...

Journal: :SIAM Review 2001
Marc C. Steinbach

Mean-variance portfolio analysis provided the first quantitative treatment of the tradeoff between profit and risk. We describe in detail the interplay between objective and constraints in a number of single-period variants, including semivariance models. Particular emphasis is laid on avoiding the penalization of overperformance. The results are then used as building blocks in the development ...

Journal: :Fuzzy Sets and Systems 2002
Christer Carlsson Robert Fullér Péter Majlender

The mean-variance methodology for the portfolio selection problem, originally proposed by Markowitz, has been one of the most important research fields in modern finance. In this paper we will assume that (i) each investor can assign a welfare, or utility, score to competing investment portfolios based on the expected return and risk of the portfolios; and (ii) the rates of return on securities...

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