Glossary
Crude Birth Rate (CBR)
The number of live births per 1,000 people in a population within a given year.
Example:
If a city of 100,000 people has 1,500 births in a year, its Crude Birth Rate would be 15.
Crude Death Rate (CDR)
The number of deaths per 1,000 people in a population within a given year.
Example:
A country experiencing a widespread disease outbreak might see a significant increase in its Crude Death Rate for that year.
Emigration
The act of people leaving their native country or region to settle in another, which decreases the population size of the origin country.
Example:
Due to political instability, many citizens chose Emigration, leading to a noticeable decline in the country's working-age population.
Immigration
The act of people entering a foreign country to live there permanently, which increases the population size of the destination country.
Example:
A nation with a strong economy and welcoming policies often experiences high rates of Immigration, contributing to its cultural diversity and labor force.
Infant Mortality Rate (IMR)
The number of deaths of infants under one year old per 1,000 live births, serving as a critical indicator of a country's healthcare system and overall living conditions.
Example:
A high Infant Mortality Rate in a region often points to inadequate sanitation, poor nutrition, or limited access to medical care for newborns.
Replacement Fertility Rate
The average number of children (approximately 2.1) a couple must have to replace themselves, ensuring a stable population size without growth or decline from births and deaths alone.
Example:
If a nation's Replacement Fertility Rate drops below 2.1 for an extended period, it will likely experience population decline unless offset by immigration.
Total Fertility Rate (TFR)
The average number of children a woman has during her reproductive years, significantly influencing a community's age structure and overall population size.
Example:
A country with a high Total Fertility Rate might see its population grow rapidly, leading to increased demand for resources like food and water.