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华中科技大学投资学课件Chapter7 Optimal Risky Portfolios
华中科技大学 投资学 课件 Chapter7 Optimal Risky Portfolios
2015/5/19
华中科技大学投资学课件Chapter7 Optimal Risky Portfolios。
Building portfolios of stocks in the Sao Paulo Stock Exchange using Random Matrix Theory
Building portfolios stocks the Sao Paulo Stock Exchange Random Matrix Theory
2012/3/2
Using Random Matrix Theory, we build a covariance matrix between stocks of the BM&F-Bovespa (Bolsa de Valores, Mercadorias e Futuros de S\~ao Paulo) which is cleaned of some of the noise due to the co...
Default Clustering in Large Portfolios: Typical and Atypical Events
Large Portfolios Default Clustering Typical Atypical Events
2011/7/22
Abstract: We develop a dynamic point process model of correlated default timing in a portfolio of firms, and analyze typical and atypical default profiles in the limit as the size of the pool grows. I...
Minimal $f$-divergence martingale measures and optimal portfolios for exponential Levy models with a change-point
f-divergence exponential Levy models
2010/10/19
We consider the exponential Levy models and we study the conditions under which f-minimal equivalent martingale measure preserves Levy property. Then we give a general formula for optimal strategy in...
Monte Carlo Portfolio Optimization for General Investor Risk-Return Objectives and Arbitrary Return Distributions: a Solution for Long-only Portfolios
Portfolio Optimization Optimisation Random Portfolio Monte Carlo Simplex
2010/10/21
We develop the idea of using Monte Carlo sampling of random portfolios to solve portfolio investment problems. In this first paper we explore the need for more general optimization tools, and conside...
Quantum Portfolios of Observables and the Risk Neutral Valuation Model
Quantum Portfolios Observables Neutral Valuation Model
2010/10/19
Quantum Portfolios of quantum algorithms encoded on qbits have recently been reported. In this paper a discussion of the continuous variables version of quantum portfolios is presented. A risk neutral...
Accounting for risk of non linear portfolios: a novel Fourier approach
Accounting non linear portfolios a novel Fourier approach
2010/10/18
The presence of non linear instruments is responsible for the emergence of non Gaussian features in the price changes distribution of realistic portfolios, even for Normally distributed risk factors....
Maximum Entropy Distributions Inferred from Option Portfolios on an Asset
Entropy Information Theory I-Divergence Asset Distribution Option Pricing Volatility Smile
2010/10/29
We obtain the Maximum Entropy distribution for an asset from call and digital option prices. A
rigorous mathematical proof of its existence and exponential form is given, which can also be applied to...
Analytical Framework for Credit Portfolios. Part I: Systematic Risk
Analytical Framework Credit Portfolios Systematic Risk
2010/11/2
Analytical, free of time consuming Monte Carlo simulations, framework for credit portfolio systematic risk metrics calculations is presented. Techniques are described that allow calculation of portfol...
Generalized Integrands and Bond Portfolios: Pitfalls and Counter Examples
Complete markets bond markets generalized integrands generalized portfolios replication
2010/11/2
We construct Zero-Coupon Bond markets driven by a cylindrical Brownian motion in which the notion of generalized portfolio has im-portant flaws: There exist bounded smooth random variables with genera...
Growth-optimal investments and numeraire portfolios under transaction costs: An analysis based on the von Neumann-Gale model
capital growth theory transaction costs numeraire portfolios
2010/11/2
The aim of this work is to extend the capital growth theory devel-oped by Kelly, Breiman, Cover and others to asset market models with transaction costs. We define a natural generalization of the noti...
We derive simple return models for several classes of bond portfolios. With only one or two risk factors our models are able to explain most of the return variations in portfolios of fixed rate gover...