Population dynamics in large Polish cities since 1980: a statictical approach.
Author
Keywords
population dynamics, large city, time series, statistics, Poland
Abstract
The analysis of population dynamics in large Polish cities in the period 1980-2001 is performed by means of statistics. Decomposition of time series into deterministic and stochastic components is applied to datasets (number of inhabitants). In order to deal with trends unlike each other the differential index of population dynamics (DIPD) is introduced. A spatial organization of cities revealing the great dynamics of population changes is detected. Seeking dependency of residuals is performed by means of the Ljung-Box test and the sample autocorrelation function. It is discovered that five of six cities exhibiting the high DIPD reveal dependent autoregressive residuals. The great dynamics of population changes may be driven by dependent autoregressive demographic processes.