Birth Rate: The number of live births per 1,000 individuals in a population within a given time period. It is an important factor influencing demographic patterns.
Immigration: The movement of individuals from one country to another with the intention to settle permanently. Immigration can significantly impact demographic patterns by altering population composition.
Dependency Ratio: The ratio between the economically dependent (children and elderly) and the productive (working-age) segments of a population. It provides insights into potential strains on resources and workforce productivity.