Articles

The impact of policies influencing the demography of age-structured populations: lessons from academies of sciences

Fernando Riosmena, Maria Winkler-Dworak, Alexia Prskawetz, Gustav Feichtinger

Abstract


In this paper, we assess the role of policies aimed at regulating the number and age structure of elections on the size and age structure of five European Academies of Sciences. We show the recent pace of ageing and the degree of variation in policies across them and discuss the implications of different policies on the size and age structure of academies. We also illustrate the potential effect of different election regimes (regimens? types?) (fixed vs. linked) and age structures of elections (younger vs. older) by contrasting the steady-state dynamics of different projections of Full Members in each academy into 2070 and measuring the size and age-compositional effect of changing a given policy relative to a status quo policy scenario. Our findings suggest that academies with linked intake (i.e., where the size of the academy below a certain age is fixed and the number of elections is set to the number of members becoming that age) may be a more efficient approach to curb growth without suffering any aging trade-offs relative to the faster growth of academies electing a fixed number of members per year. We further discuss the implications of our results in the context of stable populations open to migration.

Fernando RIOSMENA, Assistant Professor, Population Program, Institute of Behavioral Science, University of Colorado at Boulder. 483 UCB, 1440 15th St. Boulder, CO. 80309USA, USA. E.mail: fernando.riosmena@colorado.edu.

Maria WINKLER-DWORAK, Research Scientist, Vienna Institute of Demography and Wittgenstein Centre for Demography, and Human Capital, Wohllebengasse 12-14/6th floor, 1040 Vienna, Austria Austria. E-mail: maria.winklerdworak@oeaw.ac.at.

Alexia PRSKAWETZ, Professor and Group Leader, Wittgenstein Centre for Demography and  Global Human Capital (IIASA, VID/ÖAW/WU); Vienna Institute of Demography/Austrian Academy of Sciences; and. Institute of Mathematical Methods in Economics, Vienna University of Technology, Argentinierstr. 8, 1040 Vienna, Austria. E-mail: afp@econ.tuwien.ac.at.

Gustav FEICHTINGER, Professor of Operations Research, Vienna Institute of Demography/Austrian Academy of Sciences; and. Institute of Mathematical Methods in Economics, Vienna University of Technology, Argentinierstr. 8, 1040 Vienna, Austria. E-mail: gustav@eos.tuwien.ac.at.

 


Keywords


ageing; policies; organizations; stable population; immigration

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Identifiers



ISSN: 2035-5556

Reg. Tribunale di Roma n. 3321/54