C. Simon, A. Belyakov, G. Feichtinger:

"Minimizing the dependency ratio in a population with below-replacement fertility through immigration";

Theoretical Population Biology,82(2012), 3; S. 158 - 169.

Many industrialized countries face fertility rates below replacement level,

combined with declining mortality especially in older ages. Consequently,

the populations of these countries have started to age. One important indicator

of age structures is the dependency ratio which is the ratio of the

nonworking age population to the working age population. In this work we

find the age-specific immigration profile that minimizes the dependency ratio

in a stationary population with below-replacement fertility. We consider two

alternative policies. First, we fix the total number of people who annually

immigrate to a country. Second, we prescribe the size of the receiving country´s

population. For both cases we provide numerical results for the optimal

immigration profile, for the resulting age-structure of the population, as well

as for the dependency ratio.

optimal control theory, stationary population, immigration, below-replacement fertility

http://dx.doi.org/10.1016/j.tpb.2012.06.009

http://publik.tuwien.ac.at/files/PubDat_212046.pdf

Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.