Population inertia and its sensitivity to changes in vital rates or initial conditions

David N. Koons, Randall Holmes and James B. Grand
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David N. Koons: Max Planck Institute for Demographic Research, Rostock, Germany

No WP-2006-040, MPIDR Working Papers from Max Planck Institute for Demographic Research, Rostock, Germany

Abstract: Many studies have examined Keyfitz’s population momentum, a special case of inertia in long-term population size resulting from demographic transition to the stationary population growth rate. Yet, population inertia can be produced by any demographic perturbation (i.e., not just perturbations that produce stationary growth). Insight into applied population dynamics, population ecology, and life history evolution has been gained using perturbation analysis of the population growth rate. However, a similar, generalized framework for perturbation analysis of population inertia has not been developed. We derive general formulas for the sensitivity of population inertia to change in any vital rate or initial population structure. These formulas are readily computable, and we provide examples of their potential use in life history and applied studies of populations.

Keywords: age distribution; life histories; mathematical demography; migration flow; pest control; stable population (search for similar items in EconPapers)
JEL-codes: J1 Z0 (search for similar items in EconPapers)
Pages: 40 pages
Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:dem:wpaper:wp-2006-040

DOI: 10.4054/MPIDR-WP-2006-040

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