INTERNAL MIGRATION CAUSED THE DEMOGRAPHIC IMBALANCE OF THE POPULATION DISTRIBUTION IN IRAQ
Immigration is a highly studied population. Migration analyzes are usually conducted between developed and underdeveloped countries, or whether migration is within the borders of the country (internal migration). Migration is one of the three factors responsible for population change in a society: fertility, mortality and migration. Migration differs from these two elements in several respects. In contrast to both fertility and mortality, data can be easily collected and then accurately measured, migration is difficult to measure with such precision because the flow of migrants is not static in time. Second, migration is often subject to strong control by States And governments to control them as compared to fertility and mortality. Therefore, migration is a phenomenon that changes the population structure of any society very quickly compared to the effects of fertility and mortality on the population structure, which need a very long period of time to change the population structure.
Keywords: Internal migration, Demographic imbalance, Studied population.