G. Feichtinger, D. Grass, M. Winkler-Dworak:
"The Mathematics of Ageing";
Central European Journal of Operations Research, * (2019), 29 S.

Kurzfassung englisch:
Age is a crucial variable in social sciences and particularly in population dynamics. In the first part of this paper, a two-state optimal control model is proposed to explain the substantial variations of scientific production over the life cycle of
researchers. We identify conditions under which typical hump-shaped age-specific patterns of scientific production turn out to be optimal for individual researchers. The second part of the paper deals with the ageing of learned societies. In a nutshell, the dilemma of a learned society is that keeping young, i.e. electing young entrants, has the drawback of reducing the replacement rate of members. It turns out that electing a mix of young and old members delivers the optimal solution of the problem, i.e. guaranteeing a young age structure, while ensuring a high recruitment rate.

Age-structured models, optimal control, scientific production over the life cycle, optimal recruitment of learned societies.

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