...Long Run Forecast of the Covariance Matrix Name: Instructor: Course: University: Date: Abstract Table of Contents Abstract i 1. Introduction - 1 - 1.1. Research Background - 1 - 1.2. Research Objectives - 3 - 1.3. Research Approach and Scope - 3 - 1.4. Layout of the Report - 4 - 1. Introduction 2.1. Research Background Volatility is an important concept in finance. Volatility modelling and forecasting finds usage in several core financial operations, for instance – many asset-pricing models use volatility as an estimation parameter for simple risk; several famous option pricing formulas such as Black-Scholes use volatility; volatility estimates and forecasts are crucial for portfolio management and also in hedging risk. Because of the importance of volatility, as can be seen from the examples above, the interest in modelling and forecasting volatility has increased many-fold in recent times, with a special emphasis on forecasting. There are several types of techniques available for forecasting volatility, with extraordinary diversity of procedure such as the Autoregressive Moving Average (ARMA) models, Autoregressive Conditional Heteroscedasticity (ARCH) models, Stochastic Volatility (SV) models, regime switching and threshold models. (Xiao and Aydemir, 2007:1) A broad division between the techniques is based on primary assumptions of constant variance i.e. homoscedastic e.g. AMA models, or non-constant variance i.e. heteroscedastic or...
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...density forecasting, correlation, Bayesian DCC. BIS Working Papers are written by members of the Monetary and Economic Department of the Bank for International Settlements, and from time to time by other economists, and are published by the Bank. The papers are on subjects of topical interest and are technical in character. The views expressed in them are those of their authors and not necessarily the views of the BIS. This publication is available on the BIS website (www.bis.org). © Bank for International Settlements 2013. All rights reserved. Brief excerpts may be reproduced or translated provided the source is stated. ISSN 1020-0959 (print) ISBN 1682-7678 (online) On the correlation between commodity and equity returns: implications for portfolio allocation∗ Marco J. Lombardi† Francesco Ravazzolo‡ July 11, 2013 Abstract In the recent years several commentators hinted at an increase of the correlation between equity and commodity prices, and blamed investment in commodity-related products for this. First, this paper investigates such claims by looking at various measures of correlation. Next, we assess what are the implications of higher correlations between oil and equity prices for asset allocation. We develop a time-varying Bayesian Dynamic Conditional Correlation model for volatilities and correlations and find that joint modelling commodity and equity prices produces more accurate point and density forecasts, which lead to substantial benefits in portfolio...
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...NBER WORKING PAPER SERIES FINANCIAL RISK MEASUREMENT FOR FINANCIAL RISK MANAGEMENT Torben G. Andersen Tim Bollerslev Peter F. Christoffersen Francis X. Diebold Working Paper 18084 http://www.nber.org/papers/w18084 NATIONAL BUREAU OF ECONOMIC RESEARCH 1050 Massachusetts Avenue Cambridge, MA 02138 May 2012 Forthcoming in Handbook of the Economics of Finance, Volume 2, North Holland, an imprint of Elsevier. For helpful comments we thank Hal Cole and Dongho Song. For research support, Andersen, Bollerslev and Diebold thank the National Science Foundation (U.S.), and Christoffersen thanks the Social Sciences and Humanities Research Council (Canada). We appreciate support from CREATES funded by the Danish National Science Foundation. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research. NBER working papers are circulated for discussion and comment purposes. They have not been peerreviewed or been subject to the review by the NBER Board of Directors that accompanies official NBER publications. © 2012 by Torben G. Andersen, Tim Bollerslev, Peter F. Christoffersen, and Francis X. Diebold. All rights reserved. Short sections of text, not to exceed two paragraphs, may be quoted without explicit permission provided that full credit, including © notice, is given to the source. Financial Risk Measurement for Financial Risk Management Torben G. Andersen, Tim Bollerslev, Peter F. Christoffersen, and...
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