Yield Curve Shape
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Discussion

_James

Original Poster:

693 posts

230 months

Sunday 11th May 2008
quotequote all
I know a few people on here work in the city, so, a question. Is there any way you can explain Jensen's inequality in some form of English? So far, I get that effectively the relationship between bond yields and prices is non-linear, but I can't make the link between that and the shape of the curve. It seems to be something to do with the long-end of the curve being flatter.

However, why this is the case is beyond me.

_James

Original Poster:

693 posts

230 months

Monday 12th May 2008
quotequote all
Ok, almost got the answer to that question sorted now. However, can someone verify my knowledge on this:

http://www.bankofengland.co.uk/statistics/yieldcur...

Looking at those curves, presumably the dip at the short-end suggests the market is expecting a drop in rates fairly soon? Then presumably worries of higher inflation are competing with the expected lower interest rates to produce a generally downward sloping trend. Finally, the increased uncertainty of possible recession could have curved the long-end downwards, since the more convex bonds at that end are more desirable? Or is it just that the fears of the recession have pushed the entire long-end down?

So, marks out of 10 for accuracy, and any areas that need improvement. I've got to write about this in an exam in a week, and as you can see, my knowledge is hazy to say the least. Also, it would be interesting to see what people who are actually involved with this stuff think - the theoretical models are all well and good, but usually make one assumption too many.

All help is greatly appreciated...