Working Paper 27 and the draft "library" of mortality projections

Working Paper 27 was published in July 2007 together with the draft "library" of mortality projections. The library is intended to bring together previously-published tables of projections, and adjustments to these in common use, together with sample projections from the methodologies that the CMI has recently been researching, namely P-splines and Lee-Carter.

Working Paper 27 was a consultation document, including an extensive list of specific questions. Consultation meetings were held in London and Edinburgh in July 2007 to discuss the library. The slides from these meetings can be accessed here.

The responses received to Working Paper 27 and the draft library of mortality projections have been summarised in Working Paper 30, as well as the CMI's reaction to these points, and the resultant changes incorporated in version 1.0 of the library. To access Working Paper 30 and version 1.0 of the CMI Library of Mortality Projections, please click here.

Subsequent to the publication of Working Paper 27, the CMI became aware that the dataset for Permanent Assurances for Male lives used in recent research into mortality projections included initial exposures but was used as if these were central exposures. As a result, the results published in Working Papers 20, 25 and 27 and the projections in the draft library that used this dataset were inaccurate. An errata document and revised versions of Working Paper 20 and Working Paper 25 are now available. For more details of this issue, and to access the errata document, please click here

Working Paper 27 was not re-issued, as it was felt preferable to retain the version on which consultation took place. In addition it has effectively been superseded by Working Paper 30 and the user guide. To access the original version of Working Paper 27, please click here.

The draft library has now effectively been replaced by version 1.0 of the library. Please contact the CMI should you require a copy of the draft library.

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