By Roger J Kerr

The dramatic (and largely unexpected) increase in US long-term interest rates from 1.70% in 10-year Treasury Bonds before the Trump election win to a 2.35% yield today has caused panic and consternation in interest rate markets around the world.
It was a change in inflation expectations in the US from the Trump infrastructure asset rebuild programme that triggered the bond market upheaval.
Therefore, looking ahead at potential movements in long term interest rates through 2017 and 2018, the margin that US Treasury Bond yields historically sit above their inflation rate may be a fair indicator of how high US, and thus NZ swap rates may move to.
Of course, the last seven years since the GFC in 2009 have been highly abnormal with unprecedented Quantitative Easing monetary policy settings in the US, Japan and Europe.
Global deflation caused by plummeting oil prices have also disrupted the normal relationship/correlations between inflation and related interest rate levels.
A return to US Treasury Bond yields trading at a yield above the US annual inflation rate would suggest that interest rates could still increase a lot further than the 0.65% lift to date (refer chart below).
Daily swap rates
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Roger J Kerr contracts to PwC in the treasury advisory area. He specialises in fixed interest securities and is a commentator on economics and markets. More commentary and useful information on fixed interest investing can be found at rogeradvice.com
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