glossary    * O *
Demographical and statistical terms Symbols
open population
an open population is one where migration is a significant component of population change, either in size or composition, or both.
order-specific total fertility rate
is given by the summation of age-specific fertility rates order by order.
order-specific fertility rate
number of live births of a given birth order (1,2,3, and so on) occurring in a year, per 1000 women in the childbearing ages.

back arrow  glossary main page