Mortgage hedging in fixed income markets

Malkhozov, Aytek, Mueller, Philippe, Vedolin, Andrea and Venter, Gyuri (2013) Mortgage hedging in fixed income markets. Financial Markets Group Discussion Papers (722). Financial Markets Group, The London School of Economics and Political Science, London, UK.

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Abstract

We study the feedback from hedging mortgage portfolios on the level and volatility of interest rates. We incorporate the supply shocks resulting from hedging into an otherwise standard dynamic term structure model, and derive two sets of predictions which are strongly supported by the data: First, the duration of mortgage-backed securities (MBS) positively predicts excess bond returns, especially for longer maturities. Second, MBS convexity increases yield and swaption implied volatilities, and this effect has a hump-shaped term structure. Empirically, neither duration, nor convexity are spanned by yield factors. A calibrated version of our model replicates salient features of first and second moments of bond yields.

Item Type:	Monograph (Discussion Paper)
Official URL:	https://www.fmg.ac.uk/
Additional Information:	© 2013 The Authors
Divisions:	Finance
Subjects:	H Social Sciences > HC Economic History and Conditions H Social Sciences > HG Finance
JEL classification:	G - Financial Economics > G2 - Financial Institutions and Services > G21 - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
Date Deposited:	08 Jun 2023 15:03
Last Modified:	16 Sep 2023 00:01
URI:	http://eprints.lse.ac.uk/id/eprint/119032

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