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"Mortgage Hedging in Fixed Income Markets" - Aytek Malkhozov

6 Sep 2013 10:00
to
11:30
Bronfman Building : Rm. 002, 1001 rue Sherbrooke Ouest Montreal Quebec Canada , H3A 1G5

Desmarais Global Finance Research Centre presents the National Bank Seminar Series

"Mortgage Hedging in Fixed Income Markets" - Aytek Malkhozov

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.

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