1.3 Population challenges and opportunities Flashcards
What changes in population did HICs experince during the 20th century?
-Average family size and
-The proportion of people surviving to an older age, giving rise to the phenomenon of an ageing population
What changes did LICs and middle-income countries experience in the 20th century?
-Changing social attitudes towards the role of women in society.
-This has affected the sex ratio of some societies.
What is an ageing population?
A population structure where the proportion of people aged 65 and over is high and rising.
What causes an ageing population?
Increasing life expectancy and can be further exaggerated by the effect of low birth rates.
An ageing population is also called a ___
‘Greying’ population
What is the sex ratio?
The relative proportions of men and women in a society’s population
In what countries is life expectancy now 80 years or higher?
Japan, Iceland, Italy, Australia, Germany, and many other countries
How is the proportion of eldely citizens expected to change in HICs as opposed to in MICs?
In the future, the proportion of elderly citizens in developed countries will grow higher still, while most middle-income countries will also begin to experience the effects of widespread ageing.
Example of how the number of elderly people in society is expected to change in the future
Globally, the number of older persons aged over 60 is expected to exceed the number of children aged under 15 for the first time by around 2050, helped significantly by the long-term legacy of China’s one-child rule (which left the world’s largest nation of 1.3 billion people with its own greying ‘time-bomb’).
Causes of an ageing population
-Increasing life expectancy (exacerbated by low birth rates)
-Migration
Example of how migration can be a cause of an aging population
-When Poland joined the European Union in 2004, the total number of Polish emigrants living overseas rose quickly from 2 million to 3 million.
-Out-migration of the young has accelerated the rate at which Poland’s population is aging; loss of the young means that those who are not make up a larger proportion of a shrunken population.
What are some of the concerns for governments of countries with an aging population?
-Meeting the cost of economic care
-Emotional burden on younger and middle-aged people
Explain how one of the challenges of an ageing population can be meeting the economic cost of care for the elderly
-The elderly often no longer generate much wealth themselves
-Potentially enormous amounts of money must be made available for the elderly’s day-to-day living expenses, health treatments and housing costs.
Example of how one of the challenges of an ageing population can be meeting the economic cost of care for the elderly
Japan’s healthcare and nursing home costs by 2025 are expected to be almost US$1 trillion.
Explain how one of the challenges of an ageing population can be the emotional burden on younger and middle-aged people
Rising longevity is placing an emotional burden on younger and middle-aged people who must increasingly act as (unpaid) carers for older relatives who have developed Alzheimer’s disease or another form of dementia.
How have the causes of death changed thanks to improvements in healthcare?
-Fewer people now die in their 60s and 70s from cancer, heart diseases or strokes.
-Instead, more people now survive into their 80s and 90s, ages at which vulnerability to degenerative brain diseases and disorders becomes greatly increased.
What is the downside of the fact that more people now develop degenerative brain diseases?
-Many young people are totally unprepared for the role reversal that will occur in later life when, instead of being cared for by their parents, the situation is reversed.
-Moving relatives to a care home may help make life more manageable, but the effects of Alzheimer’s are still upsetting to witness in a loved one.
Explain ageing population challenges at the local scale
-The issues are amplified further at the local scale sometimes.
-In countries where homes and services for the elderly are funded by local taxes levied on working people, districts with an unusually high proportion of elderly face the most severe financial challenges.
Example of ageing population challenges at the local scale
In the UK, for instance, many coastal settlements have high proportions of older people living there as a result of age-selective migration.
Benefits of an ageing population
-Continued employment into old age
-Jobs as actors
-Jobs as politicians
-Involvement in charity and caring for grandchildren
Benefits of an ageing population- continued employment into old age
-Many elderly people who have worked in skilled occupations such as banking, teaching or medicine continue to work into their 70s and sometimes 80s.
-They may serve as consultants, providing valuable advice to younger staff, perhaps on a part-time basis.
Benefits of an ageing population- jobs as actors
Older actors are always needed to play film parts – for example, Dumbledore (played by Michael Gambon) and other older Hogwarts teaching staff in the Harry Potter films.
Benefits of an ageing population- jobs as politicians
In politics, the billionaire Donald Trump was elected as US President at the age of 70.
Benefits of an ageing population- involvement in charity and caring for grandchildren
-Elderly people often make a range of contributions to society by assisting with the running of charities and good causes.
-Some assist their own families by providing free childcare for grandchildren, thereby allowing both parents to participate in the workforce.
Why is it important to note that the very idea of an ‘elderly population’ aged over 65 is increasingly an over-simplification?
There is usually a great difference – in terms of physical health, stamina and the ability to continue generating income – between highly active people in their 70s and far more infirm people aged 90 and over.
How have family sizes changed over time?
-In most countries, women now give birth to fewer than three children on average.
-This has had the effect of reducing the average size of a family.
-In the past, it was usual to find two parents sharing their home with up to six or more children in European, Asian and South American countries.
-Today this is far less common and a typical nuclear family comprises between three and five individuals living under the same roof.
What social changes have led to a reduction in the average family or household size (other than women having less children)?
-Fewer instances of extended families living together
-Elderly people living on their own
-Divorce
-Gay rights
Explain how fewer instances of extended families living together is a social cause of the reduction in average family/household size
-In many high-income countries, it is less common now to find older people living with their children and grandchildren.
-The extended family (where three generations live together) has become largely a thing of the past in some places.
-Government support in the form of pensions and healthcare has meant older people can remain independent and no longer need to rely on their children to support them in old age, thus, they may continue to live alone.
Explain how elderly people living on their own is a social cause of the reduction in average family/household size
-In some high-income countries, including the UK, many older people own their houses outright because they bought them at a time when prices were lower.
-The cost of remaining there is therefore low.
-In Europe, an increasing number of elderly widows aged 85 and over live alone in homes they own.
Explain how divorce is a social cause of the reduction in average family/household size
Divorce has become more socially acceptable in a growing number of countries, resulting in a larger number of single-parent households.
Explain how gay rights are a social cause of the reduction in average family/household size
-Improved rights for lesbian and gay people include the right to marry in an increasing number of countries, including Ireland and Brazil.
-Although some couples have children, more will form two-person households.
A common feature of age–sex pyramids is an excess of ___
Male births over female births
Natural cause of the imbalance in ratio of boys to girls born
The naturally occurring ratio is 105 boys born for every 100 girls (this imbalance reflects chromosome variations in sperm).
Why is the ratio of male to female children more skewed (than the naturally-occuring ratio) in some societies?
-Sex-selective abortion (which is made possible by modern technology allowing couples to discover the gender of a foetus at an early stage of pregnancy)
-Female infanticide (the killing of unwanted new-born female babies, also called gendericide, which sadly still happens in some parts of the world).
Table showing countries with a skewed sex ratio, showing significantly more males than females
What does the favoring of boys over girls typically reflect?
-The uneven status of men and women in many societies, especially among older age groups.
-This can be the product of an antiquated legal system that does not allow women to inherit land or wealth.
Examples of 2 countries with skewed sex ratios
China and India
Reasons for the skewed sex ratio in China
-In the past, there was a very strong cultural preference for boys in China.
-The country’s one-child rule – which was introduced in 1980 – led quickly to the growth of a highly unbalanced population pyramid.
-In very poor rural areas, rates of female infanticide were sometimes very high.
-An extreme boy:girl ratio of 4:1 was recorded in some rural counties in the years immediately after the rule was introduced, reflecting the pressing need felt by many poor farming families to gain a male heir.
What has China’s most recent census revealed about the sex ratio?
That there were 115 males for every 100 females in China as a whole (the actual figure may have been even higher owing to some additional males births going unreported).
Statistic showing the skewed sex ratio in India
In India’s Daman and Diu region, there are 1,000 men for every 618 women according to one report.
What action has India taken to deal with its skewed sex ratio?
-India’s government has long recognized the problem of unbalanced births.
-In 1994, it passed the Prohibition of Sex Selection Act that prohibits medical professionals from informing expectant mothers of the sex of their foetus.
-This law is not always upheld, however.
Statistic showing the skewed sex ratio in India
In India’s Daman and Diu region, there are 1,000 men for every 618 women according to one report.
Examples of population management policies (broad)
-‘Carrot’ (reward) and ‘stick’ (fine or punishment) policies have been used to reduce or increase birth rates in different contexts.
-Economic measures are needed to deal with the challenge of rising elderly dependency; these may be accompanied by other legislation in relation to the retirement age.
-Policies designed to encourage gender equality and improved rights for women may also have the indirect effect of reducing a society’s fertility rate.
Examples of small steps taken by some governments to plan for the ‘demographic time bomb’ (aging societies)
-Minor adjustments to the retirement age
-Encouraging workers to invest more of their earnings in personal pension schemes
-Stimulating public discussion on whether families should do more to care for older relatives.
What is the problem with small steps taken by policies to plan for an ageing population?
-The measures introduced so far in countries like Germany, the UK and Japan fall far short of what is needed.
-Governments do not want to raise taxes for younger workers; nor do they want to upset older voters by raising the retirement age too high or too fast.
-As a result, it remains unclear how many states will be able to fund services for the elderly through taxation by mid-century.
Challenges of an ageing population in Poland
Poland’s government has recently acknowledged that its whole state pension system will become unsustainable unless people are prepared to work longer.