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Competing risks

Survival models are models for continuous risk, e.g. the force of mortality, μx.  We showed in an earlier post why this is more powerful and efficient than modelling the rate of mortality, qx
Written by: Stephen RichardsTags: Filter information matrix by tag: force of mortality

Modelling and the maple leaf

We get a lot of interest in our software from Canada. We don't know specifically why this might be — despite that fact that two of our founders are Scottish, we are not aware of any distant relatives still panning for gold out there.
Written by: Gavin RitchieTags: Filter information matrix by tag: postcodes, Filter information matrix by tag: Canada, Filter information matrix by tag: geodemographics

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Not all security strategies need be as dramatic as those proposed by Mission Impossible, but anyone offering SaaS needs to ensure data is accessible by only authorised users.
Written by: Gavin RitchieTags: Filter information matrix by tag: security, Filter information matrix by tag: encryption, Filter information matrix by tag: technology

Parallel processing

A colleague of mine once described parallel processing as the "work of the devil". I don't know if I'd go quite this far — this statement was made in the early nineties, when technology was that little bit less advanced than it is today.
Written by: Gavin RitchieTags: Filter information matrix by tag: parallel processing, Filter information matrix by tag: technology

Mortgages and annuities

Another week, another giant financial institution comes crashing down.  This time it is the turn of HBOS, a large UK mortgage provider.  The problem was not one of leverage as such, since all banks are highly leveraged.
Written by: Stephen RichardsTags: Filter information matrix by tag: leverage, Filter information matrix by tag: mortgages, Filter information matrix by tag: annuities

Degrees of freedom

In an earlier post questioning whether we still need standard tables, we used the AIC to choose between models.
Written by: Stephen RichardsTags: Filter information matrix by tag: degrees of freedom, Filter information matrix by tag: AIC, Filter information matrix by tag: standard table

Leverage in the annuity business

The recent bankruptcy filing for Lehman Brothers follows hard on the heels of the forced takeover of Bear Stearns earlier this year. Debt played a role in the demise of both: as with many banks and other businesses, they used borrowed money to enhance shareholder returns, a phenomenon known as leverage.
Written by: Stephen RichardsTags: Filter information matrix by tag: leverage, Filter information matrix by tag: annuities

Features of the survival curve

 The survival curve is simply the proportion of lives surviving to each age
Written by: Stephen RichardsTags: Filter information matrix by tag: Lee-Carter, Filter information matrix by tag: P-splines, Filter information matrix by tag: ARIMA

US Presidential survival

Senators Barack Obama and John McCain are now the confirmed candidates for their respective parties in the forthcoming US presidential election.  Much comment on Senator McCain surrounds his age (72 as at 29th August 2008), against that of Senator Obama (47, as at 4th August 2008).
Written by: Stephen RichardsTags: Filter information matrix by tag: Barack Obama, Filter information matrix by tag: John McCain

Zip codes

Following a previous entry on postcodes, we have been asked how US zip codes can be used for mortality modelling.
Written by: Gavin RitchieTags: Filter information matrix by tag: zip code, Filter information matrix by tag: postcodes, Filter information matrix by tag: geodemographics