Studies concerned with demographic methods and with methods from other disciplines that have been applied to demographic data as a whole. Includes mathematical demography and studies on methods of estimation and indirect estimation. Methodological studies and models concerned with one demographic variable, such as migration, are coded under the category concerned with that topic and cross-referenced to this heading. Studies on models used to investigate relationships between demographic variables and for the analysis of empirical data are also coded under this heading.
66:10069 Gunadi, Pietro C. Stable
population theory with time varying immigration. Genus, Vol. 55,
No. 3-4, Jul-Dec 1999. 195-214 pp. Rome, Italy. In Eng. with sum. in
"The current paper develops models of migration and shows the effect on the ensuing local population. The Sharpe-Lotka single sex deterministic model is used as the basis for the analysis together with the traditional Laplace transform methodology for its solution. We develop a number of simple theoretical models of an immigration varying over time, in order to overcome the hypothesis of constant migratory flows underlying past literature on the subject. In particular, a model is being developed to take account of gradually reduced differences in the fertility behaviour between the immigrant and the local population. The problem of determining the absolute immigration levels needed to approach a given future population is also discussed."
Correspondence: P. C. Gunadi, Universitas Gajayana, Mertojoyo, Malang 65144, Indonesia. E-mail: firstname.lastname@example.org. Location: Princeton University Library (SPR).