State Re-union Maintainability for Semi-Markov Models in Manpower Planning

Brecht Verbeken () and Marie-Anne Guerry ()
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Brecht Verbeken: Vrije Universiteit Brussel
Marie-Anne Guerry: Vrije Universiteit Brussel

Methodology and Computing in Applied Probability, 2025, vol. 27, issue 2, 1-21

Abstract: Abstract In previous research the importance of both Markov and semi-Markov models in manpower planning is highlighted. Maintainability of population structures for different types of personnel strategies (i.e. under control by promotion and control by recruitment) were extensively investigated for various types of Markov models (homogeneous as well as non-homogeneous). Semi-Markov models are extensions of Markov models that account for duration of stay in the states. Less attention is paid to the study of maintainability for semi-Markov models. The current paper focuses on discrete-time homogeneous semi-Markov models, and explores the concept of maintainable population structures under control by recruitment. In particular, a new concept of maintainability is introduced, the so-called State Re-union maintainability (SR-maintainability). Moreover, we show that, under certain conditions, the seniority-based paths associated with the SR-maintainable structures converge. This allows to characterize the convex set of SR-maintainable structures.

Keywords: Markov chains; Homogeneous discrete-time semi-Markov models; Maintainability; Control; 60K15; 91D35; 60J20 (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1007/s11009-025-10174-6

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