Population of a country has a number of inputs and outputs that creat either growth or decline in the population
The factors that influence population change can be broadly divided into social, cultural, political, economic and demographic, for example the rate of immagration into the UK can be dependant on the number of jobs available
The population in the UK is ageing or what is otherwise called a "greying population" where the death rate is higher than the birth rate meaning there is more older people than younger people resulting in a weaker workforce
It also creates something called a "greying pound". This is where the majority of the money going into the UK's economy is from older people because their children have left their homes so they spend less money on them and more on themsleves. The majority of this money is from pensions because they do not work.
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Population Inputs - Births
Social/cultural factors
Levels of education
Acceptability of methods of family planning
Typical age of women when first child is concieved
Political factors
Availabilty of family planning clinics
Finacial policies which provide in centives for families such as child allowence
Economic factors
Family wealth
The cost of raising a child
Demographic factor
Number of women in the fertile age group
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Population Inputs - Immigration
Economic factors
Availability of work and in the recieving region
Enviromental factors
Safer enviroment in which to live in and raise a family
Political factors
Government policies aimed at encouraging/disencouraging immagration
Social/cultural factors
Family members/friends who have already migrated
Language (different or similar)
Shared history/colonialism
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Population output - Deaths
Enviromental factors
Atmospheric pollution or contamination of drinking water
Frequency of natural disasters
Political factors
Public spending on National Health Service
Social/cultural factors
Lifestyle choices such as diet, addictions and excercise
Economic factors
Personal or family wealth
Demographic factors
Number of vulnerable age groups such as over 70's
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An ageing population
In 1971, there were almost twice as many under 16s (14.3 million) as there were people aged 65 or over (7.4 million)
By 2005, the numbers of people in these two age groups were much closer at 11.6 million for the under 16s and 9.6 million for the 65s and over
By 2014 it was estimated that the number of 65s would exceed those age under 16 for the first time
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Patterns in the birth rate
The UK experienced 4 baby booms during the twentieth century. One in 1921, after WW1 with a record number 1 million births, after many soldiers died they needed to equal the amount born to the amount lost
The second peaked in 1947 after WW2 with the same reason for the pervious one
The third and longest was during the 1960's occuring during the time of relative prosperity
The final was in the late 80's early 90's, when the women who grow up from the previous boom were at the age to have children
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