Demographic Definitions of Population

Flashcards covering the two distinct ways demographers define the term 'population' and relevant terminology like attrition and accession.

Population (Point-in-Time Collectivity)

A collection of individuals alive at a specific, specified point in time who meet certain inclusion criteria, such as the population of India on April 1, 1995.

Population (Enduring Collectivity)

A group that persists over time as a continuous entity, despite constant changes in its membership through attrition and accession.

Attrition

The process of membership loss in an enduring collectivity through deaths or emigration.

Accession

The process of membership gain in an enduring collectivity through births or immigration.

Point-in-Time Collectivity

A demographic way of defining population as a collection of individuals alive at a specific, specified point in time.

Enduring Collectivity

A demographic way of defining population as an entity that persists over time despite continuous changes in membership.