Working paper 41 and the launch of the new CMI Mortality Projections Model, 'CMI_2009'

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

CMI Working Paper 41 accompanied the launch of the first live version of the CMI Mortality Projections Model and was issued alongside the model, a user guide and a set of parameter sensitivity test results

This followed the CMI’s publication in June 2009 of a prototype mortality projections model (CPMv0.0). The prototype model was issued for consultation and was accompanied by its user guide and two CMI working papers. CMI Working Paper 38 provided an overview of the model and set out specific questions for the consultation. CMI Working Paper 39 detailed further analysis to help inform the setting of parameter values for the model. 

Consultation meetings were held in Edinburgh and London in July 2009 and over 30 written responses to the consultation were received. The CMI is grateful to all those who contributed.

CMI Working Paper 41 summarises the responses to each of the consultation questions posed in CMI Working Paper 38, together with the Working Party’s comments and details of the actions taken to develop the first live version of the model

The structure of the model has been left broadly unchanged from the prototype version. However, the default parameters contained in the model have been updated to reflect the publication of England and Wales population data for calendar year 2008.

As a result, default initial rates of mortality improvement have slightly reduced in general from those published in the prototype version and accordingly core projections generated by the new version of the model produce life expectancies and annuity values which are marginally lower than those produced by the prototype model (with other parameters held constant).

In addition, the naming convention has been revised: this first live version of the model will be referred to as CMI_2009 rather than ‘CPMv1.0’.

Related documents

You might also like

Contact Details

If you have any questions about the CMI please email

Filter or search events

Start date
E.g., 22/06/2022
End date
E.g., 22/06/2022

Events calendar

  • CILA 2022

    23 May 2022 - 24 May 2022

    Spaces available

    We continue to live in a world of global uncertainty. Survival depends on our ability to simultaneously navigate through the diverse root-causes, ranging from: the consequences of Climate Change; transitioning to Net Zero; increased inflationary pressures and supply chain issues; to self-imposed changes in regulatory requirements. CILA 2022 focuses on these challenges to ensure we continue to be informed and remain battle ready, as well as showcasing highlights of recent CMI outputs.

  • Spaces available

    In the spirit of fostering the IFoA’s vibrant, global community and enabling our members to participate, we have decided to hold our AGM virtually again this year. This allows for greater accessibility to this important annual event, and for greater accountability of our organisation.

    The Business of the AGM

  • The IFoA Conference 2022

    133 Houndsditch, London EC3A 7BX and Online
    22 June 2022 - 23 June 2022
    Spaces available

    We’re delighted to welcome you back to our first in-person conference since early 2020, also being delivered virtually in our first-ever hybrid event. The theme of our inaugural two-day conference is ‘Focusing on tomorrow’s actuary’ and will explore the contribution actuarial science is making to some of tomorrow’s biggest issues.


  • Spaces available

    This webinar will cover:

    • Some background on the risks of misselling in an ESG context, including the DWS case

    • Achieving positive impact is a strong antidote to the risks of greenwashing or ESG misselling, however this risks having a tension with fiduciary responsibilities

    • This tension can be resolved with a concept called Universal Ownership

    • Under Universal ownership, investors have an appetite to make a loss in order to achieve positive impact, and yet still have no compromise on their fiduciary responsibilities

  • Spaces available

    This session will focus on the transformation roadmap of the healthcare sector in KSA and the role of actuarial capabilities in enhancing its evolution to the desired end stage as per the objectives of the Vision 2030. The discussion will focus how the system has evolved so far and shed light on  the expected future changes. Through examining  the transformation, we will highlight how the sector is and can use actuarial  expertise to not only assist with this transformation but also use basic actuarial principles to identify the key risks and their respective mitigation strategies.