Population migration is an academic concept and interdisciplinary field of study focused on the movement of people across defined geographical boundaries. This field investigates the causes, processes, patterns, and consequences of such movements for both individuals and the populations and places involved. It examines the diverse drivers (e.g., economic, social, political, environmental) and forms (e.g., internal, international, voluntary, forced) of migration, analyzing its profound demographic, social, economic, and cultural impacts on areas of origin and destination.