fivemack: (Default)
Tom Womack ([personal profile] fivemack) wrote2007-12-07 07:46 pm
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Convoluted thoughts about regulatory frameworks

Halifax will sell me a 3-month bond paying 6.85%, a 6-month bond paying 6.5%, a 1-year bond paying 6.45%, a 3-year bond paying 6.4%, or a 5-year bond paying 6.2%.

I thought that longer terms were supposed to be rewarded by better interest rates; on the other hand, why shouldn't I jump at this?

If I assume that Halifax would rather borrow money on the money-markets, where LIBOR is 6.61%, than through the time-consuming process of assembling small sums from thousands of tiny savers, then I conclude that the money markets want to charge Halifax perceptibly more than 6.85%. I think that this means that they believe there is a chance of perceptibly more than 0.89% [(6.85 / 6.61) ^ (3/12)] that Halifax will be unable to repay.

On the other hand, I'm a small saver, and the regulatory framework likes small savers. If Lloyds lend Halifax fifteen million pounds, and Halifax goes bust, Lloyds get nothing back. If I lend Halifax fifteen thousand pounds, and Halifax goes bust, I get £13,700 back. So I should be more willing to lend Halifax money than Lloyds is - indeed, since the money is otherwise making 5.8%, I should lend it to Halifax if I believe the odds of Halifax still being around in mid-February are better than about 20:1 for.

This seems somehow counter-intuitive; on the other hand, I will go off to the local Halifax tomorrow with a chequebook. There is then the question of hedging: I wonder what odds the local Ladbrokes will offer on Halifax being bust by mid-February?

[identity profile] del-c.livejournal.com 2007-12-07 08:27 pm (UTC)(link)
I thought that longer terms were supposed to be rewarded by better interest rates

Usually they are. When they aren't, it's called an inverted yield curve, and it implies that the people offering those bonds see bad times ahead.

[identity profile] fivemack.livejournal.com 2007-12-07 10:15 pm (UTC)(link)
I wonder why that looks different from the yield curve I see at http://newsvote.bbc.co.uk/1/shared/fds/hi/business/market_data/gilt/default.stm ? I don't recall ever seeing the UK Gilts yield curve other than inverted.

I presume the decline in the really long terms is pure demography - though I got the impression that the long-term gilts are basically a regulatory accident to do with pension funds wanting risk-free investments of arbitrarily low return but maturing when people who've just opened a pension upon leaving university get round to retiring at 75.

[identity profile] beingjdc.livejournal.com 2007-12-07 10:27 pm (UTC)(link)
Dunno, is it significantly different? The pretty graph is only updated on Monday, so the BBC data may have shifted after the BoE's little aberration.

[identity profile] angoel.livejournal.com 2007-12-07 11:58 pm (UTC)(link)
Or that they're urgently in need of cash now (say due to a credit crunch), but don't believe that they'll have as great a need to borrow that money in the future.