China instituted this policy in 1980 in hopes of controlling an out of control population.
One child policy
Seen here... is a population pyramid of Mexico, which is in this stage of the demographic transition model.
Stage 3, (Low birth rates, low death rates, lower natural increase)
The total number of live births in a year for every 1000 people alive.
Crude Birth Rate
The two approaches to reducing birth rates in countries that will lead to stage 3 DTM conditions..
Education and Contraception
The age group that is predominant in this Population Pyramid
Senior Citizens
The formula of "Immigrants-Emigrants="
What is Net Migration
A country with a Pyramid shaped like Japan is in this stage of the Demographic Transition Model
Stage 5