Migration rate
The migration rate describes the immigration or emigration of a country's population. It is given in migrants per 1,000 inhabitants and year or as a percentage per migration interval. A surplus of immigration is shown as a positive number, an emigration surplus as a negative number. The migration rate is part of the demographic equation that is used to study population development in addition to various other statistical indicators such as birth rate , fertility rate , death rate , life expectancy .
The migration rate is also an indicator of the social situation of a country. Hunger, drought, unemployment and war usually lead to emigration, while social prosperity, labor shortages and political stability can be reasons for immigration ( see also: push-pull model of migration ).
The total balance of immigration and emigration of an area for a certain period is the migration balance .