population studies: defining our terms 10/1/10

life expectancy 
Japan- 82.6
France- 81.5
 Kenya- 54.2
Cuba- 78.7
United States- 78.4
Afghanistan- 43.9 

crude birthrate  
Japan- 7.64 births/1,000 population country comparison to the world: #222 
Kenya- 36.64 births/1,000 population country comparison to the world: #29
Ethiopia- 43.66 births/1,000 population country comparison to the world:  #7
United States- 13.83 births/1,000 population country comparison to the world: #154
Germany- 8.18 births/1,000 population country comparison to the world: #220

Crude death rate

Afghanistan 17.83 deaths/1,000 population

Kenya 9.72 deaths/1,000 population

United States 8.38 deaths/1,000 population

Japan 9.54 deaths/1,000 population

Mexico 4.8 deaths/1,000 population

RNI

In demographics, the rate of natural increase (RNI) is the crude birth rate minus the crude death rate of a population. If we neglect the migration, then a positive RNI number means that the population increases and a negative number means that the population decreases.

When looking at countries, it gives an idea of what position in the Demographic Transition Model, but to find out how much a country is growing, the population growth rate should be observed.

Usually developing countries have a positive or high natural increase rate Developed countries have a negative/neutral or low natural increase rate ^[1], but many developed countries have their population increasing due to immigration despite their negative RNI.

The formula for the rate of natural increase is:

(Crude birth rate − Crude death rate) / 10, where birth and death rates are in per mil. The result is the rate of natural increase inpercentage form.

TFR

Niger 16.56 deaths/1,000 population

Afghanistan 17.83 deaths/1,000 population

Japan 9.54 deaths/1,000 population

United States8.38 deaths/1,000 population

Germany 10.9 deaths/1,000 population

Net Migration Rate- the difference of emigrants and immigrants from an area in a period of time, divided per 1,000 inhabitants 

emigration- leaving the country

immigrant- coming into the country.

Mexico- -3.61

United States- 4.32
United Arab Emirates- 22.98
Argentina- 0
Saudi Arabia- -7.6
Uganda- -8.83

Population pyramid is a graphical illustration that shows the distribution of various age groups in a human population,which normally forms the shape of a pyramid.

In order for the population to stay the same the TFR has to be 2.1 


pull factor- something that makes you want to go to a different country.
push factor- something that makes you want to leave the country that you live in.

https://www.cia.gov/library/publications/the-world-factbook/geos/sa.htm

http://en.wikipedia.org/wiki/Population_pyramid