demography Flashcards
define demography
the study of populations and their characteristics
define immigration
how many people enter the country from elsewhere
define emigration
how many people leave the country to live elsewhere
until the 1980s, uk population growth was largely the product of what?
natural change
since the 1980s where has most of the UKs population growth come from?
net migration
what factors cause a population increase?
increase births
increase immigration
what factors cause population decrease?
increase death rate
increase emigration
define birth rate
the number of live births per thousand of the population per year
what has the long term trend of births been since the 1900s?
decline
how many baby booms were there in the 20th century? and when were they?
3 baby booms
the first two came after the world wars
the third was in the 1960s
what factors determine the birth rate?
- the proportion of women who are of childbearing age
- how fertile they are (how many kids they have)
what is the total fertility rate (TFR)?
the average number of children women will have during their fertile years
describe the UKs TFR trend
all time low of 1.63 children per woman in 2001
rose to 1.83 by 2014
still lower than the peak of 2.95 children in 1964 (baby boom period)
what do the changes in fertility and birth rates reflect?
- more women are remaining childless than in the past
- women are postponing having children
what factors explain the long term decline in birth rate since 1900?
- changes in women’s position
- decline in infant mortality rate
- children are now an economic liability
- child centredness