Analyzing hedging strategies for fixed income portfolios: A Bayesian approach for model selection

Wolfgang Bessler, Alexander Leonhardt and Dominik Wolff

International Review of Financial Analysis, 2016, vol. 46, issue C, 239-256

Abstract: During the recent European sovereign debt crisis, returns on EMU government bond portfolios experienced substantial volatility clustering, leptokurtosis and skewed returns as well as correlation spikes. Asset managers invested in European government bonds had to derive new hedging strategies to deal with changing return properties and higher levels of uncertainty. In this environment, conditional time series approaches such as GARCH models might be better suited to achieve a superior hedging performance relative to unconditional hedging approaches such as OLS. The aim of this study is to test innovative hedging strategies for EMU bond portfolios for non-crisis and crisis periods. We analyze single and composite hedges with the German Bund and the Italian BTP futures contracts and evaluate the hedging effectiveness in an out-of-sample setting. The empirical analysis includes OLS, constant conditional correlation (CCC), and dynamic conditional correlation (DCC) multivariate GARCH models. We also introduce a Bayesian composite hedging strategy, attempting to combine the strengths of OLS and GARCH models, thereby endogenizing the dilemma of selecting the best estimation model. Our empirical results demonstrate that the Bayesian composite hedging strategy achieves the highest hedging effectiveness and compares particularly favorable to OLS during the recent sovereign debt crisis. However, capturing these benefits requires low transactions cost and efficiently functioning futures markets.

Keywords: Sovereign debt crisis; Bond portfolio management; Interest rate futures; MGARCH; Bayesian composite hedging; Hedge ratio and hedging effectiveness (search for similar items in EconPapers)
JEL-codes: C52 G11 G19 (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (14)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:finana:v:46:y:2016:i:c:p:239-256

DOI: 10.1016/j.irfa.2015.11.013

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