Population Flashcards
Exponential growth
A pattern where the growth rate constantly increases - often shown as a J-curve
BR
Number of babies born alive 1000 people per year (UK 10.7)
DR
Number of deaths per 1000 people per year (UK 10.1)
Life expectancy
Number of years a person is expected to live, usually taken from birth
NIC
Newly industrialised country
-emerging industrial nations eg. Asian tigers, Malaysia, Philippines, China
Demographic transition model
Used to describe how BR and DR affect total population and how they are likely to change for different countries as they develop
Rural to urban migration (or vice versa)
Moving home from a rural area to settle in a city (or vice versa)
-urban-rural: MEDCs - seek better quality of life - work using telecommunications technology or commute to city daily (contribute to rush hour)
Natural increase/decrease
Difference between BR and DR (inc or dec of pop growth) (excludes immigration) -BR-DR
-could be because of epidemic/war/natural disaster/fertility rate dec etc
Ageing population
Population structure (often MEDCs) often high proportion of elderly people (advances in nutrition/medical care) - issues:
- don’t work
- need healthcare, pensions, social support, sheltered housing etc from taxes paid by smaller proportion of workers
- more young people employed in caring for elderly - removed from more productive jobs within economy - harms countries competitiveness
Child dependency ratio
Number of children in relation to number of working people, usually expressed as a ratio
Counter-urbanisation
Movement of people in MEDCs away from urban areas to live in smaller towns and villages
Dependency ratio
Ratio between those of working age and non working age
Dependent population
Those who rely on working population for support ie. elderly/young
Economic migrant
Person leaving their country to seek better economic opportunities (jobs) and so settle temporarily in another country
Economically active
People in employment who have to support dependent population
Emigrant
Someone who leaves an area to live elsewhere