Population Revision

• Demographic Dividend


  A rise in the rate of economic growth due to a rising share of working age people in a population.
• Youthful Population


  a population in which there is a high percentage of people under the age of 16 (or sometimes 18)
• Ageing Population


  a population with a rising average age
• Old Dependents


  Anyone over the age of 65. These people are normally retired.
• Economically Active


  People between the ages of 16 and 65. These people are normally working and pay taxes.
• Young Dependents


  Anyone under the age of 16. These people are normally being cared for at home or are at school.
• Population Pyramids


  A bar graph representing the distribution of population by age and sex.
• Natural Increase


  the growth rate of a population; the difference between birthrate and death rate
• Total Fertility Rates


  The average lifetime number of births per woman in a population.
• Death Rates


  the number of deaths in a year for every 1,000 people in a population
• Birth Rates


  the number of births in a year for every 1,000 people in a population
• Demographic Transition Model


  a model of how the size of a population changes as a country develops its economy
• Environmental Factors


  natural disasters such as tsunamis, landslides, and flood events or climate change such as desertification and sea level rise.
• Political Factors


  reasons for human migration relating to government, their policies, and wars
• Economic Factors


  Reasons for human migration relating to economic reasons such as jobs and earning an income
• Social Factors


  societal realities, such as racist or sexist policies, that might limit a person's access to health care
• Economic Migrant


  a person who travels from one country or area to another in order to improve their standard of living.
• Asylum Seeker


  a person who has left their home country as a political refugee and is seeking asylum in another.
• Internally Displaced Person (IDP)


  Someone who has been forced to migrate for similar political reasons as a refugee but has not migrated across an international border
• Refugee


  A person who has been forced to leave their country in order to escape war, persecution, or natural disaster
• Migration


  movement of people from one place to another
• Sparse/Dense

  thinly dispersed or scattered
• Pull Factors


  factors that induce people to move to a new location: political stability, lots of jobs, natural resources, better learning institutions, etc...
• Push Factors


  something that makes people want to leave a place or escape from a particular situation: lack of jobs or opportunities,absence of good educational institutes,poor medical care, etc...
• Population Density


  A measurement of the number of people per given unit of land
• Population Distribution


  how population is spread out in an area
• Life Expectancy


  the number of years a person can expect to live
• Demography


  Scientific study of human populations.