demography Flashcards
what is demography?
the study of population, including factors affecting its size and growth, whether a population is growing, declining or stable depends on four factors:
births and immigration (increase population)
deaths and emigration (decrease population)
natural change is number of births minus deaths, net migration is number of immigrants minus emigrants
how has UK population changed?
grew from 37m in 1901 to 67m in 2022 and projected to be 71m in 2031
growth has been mostly due to natural change rather than net migration
what is birth rate?
number of live births per 1000 of the population per year
there has been a long-term decline in the birth rate, 29 in 1900 and 12 in 2014
but there have been fluctuations, three ‘baby booms’; after two world wars (returning servicemen starts families they had postponed during war) and in 1960s
what is total fertility rate?
average number of children a women will have during her fertile years
1960s baby boom it reached average of 2.95 per women, declining to all-time low in 2001 of 1.63, rose to 1.83 in 2014
total fertility rate affects family and household size, the more children a woman has the bigger the family
what are important trends in fertility and birth rates?
more women are remaining childless than in the past
women are having children later, average age is now over 30 and fertility rates for women in 30s and 40s are on the increase
what are reasons for the fall in birth rates?
changes in women’s position
decline in infant mortality rate
children are now an economic liability
child centredness
how does changes in women position cause fall in birth rate?
increased educational opportunities (girls do better at school than boys), change in mindset
more women in paid work, laws outlawing unequal pay and sex discrimination
access to abortion and reliable contraception give women more control over their fertility
how does decline in infant mortality rate cause fall in birth rate?
infant morality rate is number of infants who die before their first birthday per 1000 babies per year, it has greatly fallen in the last century, 154 in 1900 and 4 in 2016
if many infants die, parents have more children to replace those they have lost, if they survive, parents will have fewer
reasons for fall in IMR include improved housing, nutrition and health services (including that of mothers), mass immunisation, antibiotics
how do children as an economic liability cause fall in birth rate?
until late 19th century, children were an economic asset because they went to work from an early age
laws banning child labour and introducing compulsory schooling mean they remain economically dependent for longer
changing norms about children’s right to a high standard of living raises their cost
so parents may be unable to afford to have a large family
how does child centredness cause fall in birth rate?
childhood is now socially constructed as a uniquely important period, led to a shift from ‘quantity’ to ‘quality’, parents now have fewer children and lavish more attention and resources on these few
what are the effects of a falling birth rate?
the family: women are freer to go out to work, creating dual earner couple
dependency ratio: relationship between size of working population and dependent, non-working population, fewer children reduces ‘burden of dependency’ on working population (long term, smaller working population and increased burden of dependency)
public services: fewer schools and child health services needed, less spent b maternity and paternity leave, but these are political decisions as government can choose to reduce number of schools or to have smaller class sizes
death statistics
number of deaths: stable since 1900 (600,000 a year), fluctuations including two world wars and 1918 flu epidemic
death rate: number of deaths per thousand per year, halved from 19 in 1900 to 8.9 in 2012
reasons for decline in death rate
improved nutrition
medical improvements
public health improvements
other social changes
how does improved nutrition cause decline in death rate?
McKeown said better diet accounted for half the reduction in death rate, by increasing peoples resistance to infection
but doesn’t explain why females who received a smaller share of family food supply, lived longer than males
how does public health improvements cause decline in death rate?
more effective government with the power to pass and enforce laws led to improved public health e.g. better housing, purer drinking water and cleaner air