Abstract
The chapter builds on and analyses three key quantities: life expectancy (LE), healthy life expectancy (HLE) and working life expectancy (WLE). Many important questions relate to these measures and the differences between them. Based on a model which is explained in the chapter, the author shows how changes to LE, HLE, WLE could affect various areas of Government expenditure, taxes and GDP and uses the model to consider the changes needed to put the UK economy on an ‘active ageing path’.
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Notes
- 1.
The total support ratio or dependency ratio, which is the ratio for the number of people aged 20–64 to the population < 20 plus population 65+, peaked in 2007 after a steady rise for over 27 years.
- 2.
Disability-free life expectancy measures disability by looking at reported limitations in day to day activities such as work. The World Health Organization (WHO) defines a quantity known as HALE (health adjusted life expectancy) as the average number of years that a person can expect to live in full health. HALE is calculated by subtracting from the life expectancy the average number of years in ill-health weighted for severity of the health problem. The first example of ‘health expectancy’ was published in a report of the US Department of Health Education and Welfare (Sullivan, 1971).
- 3.
Life expectancy, GDP and inequality (personal communication).
- 4.
The Gini coefficient is a measure of statistical dispersion ranging in value from 0 to 1 and is used as a measure of income or wealth inequality. A value of zero corresponds to perfect equality (everyone having exactly the same income) and 1 to perfect inequality (where one person has all the income, while everyone else has zero income). Worldwide, Gini coefficients range from approximately 0.232 in Denmark to 0.707 in Namibia. More advanced economies tend to have a Gini coefficient of between 0.25 and 0.50.
- 5.
Two types of HLE are routinely calculated from national General Household Survey based on either of the following questions: ‘Over the last 12 months would you say your health has been good, fairly good, or not good?’ and LE free from limiting long-term illness based on: ‘Do you have any long-standing illness, disability or infirmity?’. The method used by ONS to derive health expectancy is known as the Sullivan Method (Sullivan, 1971; Breakwell & Bajekal, 2005).
- 6.
Disability-free LE is defined as the average number of years an individual is expected to live free of disability if current patterns of mortality and disability continue to apply. Disability definitions and measurements are only partly harmonised across countries.
- 7.
A full blown demo-economic model would include the whole population, expenditure on defence, education, servicing debt et cetera and importantly non-wage GDP.
- 8.
This is an estimate based on the Labour Force Survey (LFS) which shows that male WLE based on being classed as economically active is 39 years and females 37 years. If periods of unemployment are included the averages fall to 35 and 33 years respectively.
- 9.
The average tax rate is based solely on the costs of health and social care, social security benefits and state pension.
- 10.
For a more in-depth treatment of the concept of ‘active ageing’ see for example ICCR (2005).
- 11.
GDP is the main measure of national income. In economic theory, national income equals national expenditure which equals national product. Our simplified representation using a proxy based simply on wage income and so ignores other sources of income et cetera.
- 12.
See also Carers, Employment and Services Report Series (2007), a series of reports produced by Carers UK and University of Leeds.
- 13.
HMRC Child and Working Tax Credits statistics December 2008, table 3.1.
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Mayhew, L. (2011). Increasing Longevity and the Economic Value of Healthy Ageing and Longer Working. In: Stillwell, J., Clarke, M. (eds) Population Dynamics and Projection Methods. Understanding Population Trends and Processes, vol 4. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-8930-4_8
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