Portfolio risk management in a data-rich environment

We study risk assessment using an optimal portfolio in which the weights are functions of latent factors and firm-specific characteristics (hereafter, diffusion index portfolio). The factors are used to summarize the information contained in a large set of economic data and thus reflect the state of...

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Veröffentlicht in:Financial markets and portfolio management 2012-12, Vol.26 (4), p.469-494
Hauptverfasser: Bouaddi, Mohammed, Taamouti, Abderrahim
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container_title Financial markets and portfolio management
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creator Bouaddi, Mohammed
Taamouti, Abderrahim
description We study risk assessment using an optimal portfolio in which the weights are functions of latent factors and firm-specific characteristics (hereafter, diffusion index portfolio). The factors are used to summarize the information contained in a large set of economic data and thus reflect the state of the economy. First, we evaluate the performance of the diffusion index portfolio and compare it to both that of a portfolio in which the weights depend only on firm-specific characteristics and an equally weighted portfolio. We then use value-at-risk, expected shortfall, and downside probability to investigate whether the weights-modeling approach, which is based on factor analysis, helps reduce market risk. Our empirical results clearly indicate that using economic factors together with firm-specific characteristics helps protect investors against market risk.
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subjects Business and Management
Consumption
Diffusion index
Discriminant analysis
Expected values
Finance
Investments
Macroeconomics
Management
Portfolio management
Portfolio performance
Principal components analysis
Risk assessment
Risk management
Skewness
Studies
title Portfolio risk management in a data-rich environment
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