On the Impact of Spatial Momentum
Momentum, the population growth that occurs after a fall in fertility to replacement level, has long been appreciated as a factor in the future population growth of many countries. This paper argues that another aspect of growing populations - their high proportion rural - is also a source of significant growth, and refers to the additional growth attributable to geographical redistribution as spatial momentum. Using simplifying assumptions, a model for analyzing spatial momentum is developed based on population composition, rates of growth, and levels of interregional migration. Calculations are then done using (i) hypothetical populations exhibiting a range of plausible demographic behavior, and (ii) the population of Mexico, 1970. The results show that spatial momentum can have a substantial impact on ultimate population size under commonly encountered circumstances.
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- A Rogers & F Willekens, 1978. "The spatial reproductive value and the spatial momentum of zero population growth," Environment and Planning A, Pion Ltd, London, vol. 10(5), pages 503-518, May.
- Young Kim & Robert Schoen & P. Sarma, 1991. "Momentum and the growth-free segment of a population," Demography, Springer;Population Association of America (PAA), vol. 28(1), pages 159-173, February.
- repec:cai:popine:popu_p1986_41n3_0609 is not listed on IDEAS
- Martin Brockerhoff, 1999. "Urban Growth in Developing Countries: A Review of Projections and Predictions," Population and Development Review, The Population Council, Inc., vol. 25(4), pages 757-778.
- Shapiro, D. & Tambashe, B.O., 1999. "Fertility Transition in Urban and Rural Areas of Sub-Saharan Africa," Papers 9-99-1, Pennsylvania State - Department of Economics.
- A Rogers & F Willekens, 1978. "The Spatial Reproductive Value and the Spatial Momentum of Zero Population Growth," Environment and Planning A, SAGE Publishing, vol. 10(5), pages 503-518, May.
When requesting a correction, please mention this item's handle: RePEc:dem:demres:v:6:y:2002:i:3. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Editorial Office)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.