Basic demographic equation

The basic demographic equation is an equation used to calculate the population changes in an area :

${\displaystyle P_{2}=P_{1}+B-D+Z-A}$.

Here, the population at the time 2, the population at time 1, the number of births between times 1 and 2, the number of deaths between the time points 1 and 2, the number of feed and the number of emigrated in this period. ${\displaystyle P_{2}}$ ${\displaystyle P_{1}}$ ${\displaystyle B}$ ${\displaystyle D}$ ${\displaystyle Z}$ ${\displaystyle A}$

Individual evidence

1. ↑ Basic demographic equation. In: Spectrum Online Lexicon of Geography. Retrieved March 8, 2018 .