CMI Working Paper 49

Note: More recent versions of the CMI Mortality Projections Model have subsequently been released. View the full list of model versions

CMI Working Paper 49 accompanies the updated version of the CMI Mortality Projections Model, CMI_2010, and is issued alongside the model and an updated user guide

The structure of the CMI_2010 model is identical to that of the CMI_2009 version. However, the default parameters contained in the model have been updated to reflect the publication of England and Wales population mortality data for calendar year 2009.

As a result, the default initial rates of mortality improvement have, in general, increased from those published in 'CMI_2009'. Accordingly core projections generated by the CMI_2010 model produce expectations of life which are generally slightly higher than those produced by CMI_2009 (with other parameters held constant).

This working paper illustrates the impact of incorporating data for 2009 and discusses the issues arising from the update to the model.