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Natural Increase

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Journal Article
Demography (1981) 18 (2): 157–172.
Published: 01 May 1981
...A. Romaniuk Abstract It has been hypothesized that populations may experience an increase in their natural fertility during the early stages of modernization as a result of the relaxation of various fertility-inhibiting practices and customs prevalent in traditional societies. This article offers...
Journal Article
Demography (1971) 8 (2): 225–232.
Published: 01 May 1971
... natural increase. Thus to ascribe Latin American urban growth to a single prime causal factor is a misleading oversimplification. 2/ Net in-migration apparently plays a larger role in determining the rate of growth of large metropolitan centers than is the case with smaller urban areas. 3/ A significant...
Journal Article
Demography (1969) 6 (2): 141–149.
Published: 01 May 1969
...David M. Heer; Dean O. Smith Abstract A series of computer-simulation models relating mortality level to fertility behavior and to rates of natural increase assuming that couples made use of a perfect means of birth control, that they wanted to be highly certain of having at least one son survive...
Journal Article
Demography (2014) 51 (4): 1527–1550.
Published: 01 July 2014
...Mathias Lerch Abstract Although natural increase has been recognized as the main driver of postwar urban growth in developing countries, urban transition theory predicts a dominant role for population mobility in the early and late phases of the process. To account for this discrepancy between...
FIGURES
Includes: Supplementary data
Journal Article
Demography (1966) 3 (2): 393–415.
Published: 01 June 1966
... characteristic of all the methods used by these demographers has been the estimation of net migration as a residual obtained by subtracting natural increase in an area during a decade from the population change during the same decade. This method has been most generally stated in the classic formula {fx394-1...
Journal Article
Demography (1974) 11 (4): 657–672.
Published: 01 November 1974
...H. C. Chang Abstract As a follow-up on the studies by Dorn and Beale, this paper examines differences between Iowa counties with natural decrease and those with natural increase and analyzes the part that migration and fertility played in bringing about an excess of deaths over births in Iowa...
Journal Article
Demography (1967) 4 (1): 143–157.
Published: 01 March 1967
... or no tendency to decline. Between 1940 and 1960, in fact, the birth rate appears to have remained fairly constant around 43. With the death rate steadily dropping, the rate of natural increase and population growth (given a small net in-migration) has been accelerating. From a theoretical point of view...
Journal Article
Demography (1976) 13 (3): 397–409.
Published: 01 August 1976
... the estimates indicate net overcounts in the census. Likewise, the net increase of the entire American Indian population as measured by the difference between the 1960 and 1970 censuses is 67,000 greater than the natural increase for the decade. Detailed analysis of cohort data with respect to the possible...
Journal Article
Demography (1986) 23 (3): 351–365.
Published: 01 August 1986
.... We also find that sterilization has reduced the total marital fertility rate by over 33 percent, thus having a significant effect on reducing the rate of natural increase; by all indications, it will have a greater effect in the future. DEMOGRAPHY© Volume 23, Number 3 August 1986 CONTRACEPTIVE...
Journal Article
Demography (1973) 10 (2): 225–241.
Published: 01 May 1973
... by the clearcut positive relationship between the percentage of persons classified as either lifetime or 5-year migrants and the urban character of their 1960 place of residence. Yet, the evidence also points to an increasing proportion of urban growth in recent decades attributable to natural increase...
Journal Article
Demography (1970) 7 (3): 361–368.
Published: 01 August 1970
... a momentary condition of zero growth is achieved in both regions, it is possible to maintain finite populations if each population follows a logistic natural growth process and migration flow is proportional to the volume of interaction. It is necessary also that the natural increase limitation is strong...
Journal Article
Demography (1980) 17 (1): 57–70.
Published: 01 February 1980
... contributed significantly to overall population gain and was particularly strong among counties without an urban center. The rate of natural increase continued to slow in the post-1970 period, with natural decrease becoming common among counties with protracted histories of population decline. 7 1 2011...
Journal Article
Demography (1967) 4 (2): 515–531.
Published: 01 June 1967
... frequently have had to rely on crudely constructed measures of natural increase and net migration. Recent efforts to express interregional population growth in matrix form, however, suggest a method for estimating the regime of growth of a multiregional system solely on the basis of historical data...
Journal Article
Demography (1969) 6 (4): 359–381.
Published: 01 November 1969
...), that the adjustment in reproductive behavior made by a community in response to a rising “strain,” such as that resulting from higher natural increase, is likely to differ depending upon the ease with which the community can relieve the strain through out migration. Relationships among such characteristics...
Journal Article
Demography (1970) 7 (4): 417–432.
Published: 01 November 1970
...Samuel H. Preston Abstract The method of decomposition is applied to rates of natural increase in order to elucidate the role played by age composition in the growth of populations. A population’s age distribution and fertility schedule are contrasted to those in a "stationary" population having...
Journal Article
Demography 9530075.
Published: 01 October 2021
... changes in the conventional poverty rate can occur owing to processes of natural increase, migration, or transitions in and out of poverty. This article presents an accounting framework for changes in poverty within and between places. The framework, termed the poverty balancing equation, generates...
Journal Article
Demography (1978) 15 (1): 113–129.
Published: 01 February 1978
...Jay D. Teachman; Dennis P. Hogan; Donald J. Bogue Abstract One of the major goals of family planning programs worldwide has been to reduce the level of fertility in hopes of slowing the rate of natural increase and promoting social and economic development. Such programs have now been in existence...
Journal Article
Demography (1973) 10 (1): 71–84.
Published: 01 February 1973
... and in the other “new countries” of British origin (Australia, Canada, and the United States) compare? (3) Why has New Zealand never had a single dominant metropolis as is commonly found in other countries of its size? (4) How have the sources or urbanization–reclassification, differential natural increase...
Image
Published: 01 July 2014
Fig. 1 Stylized patterns of urban growth and the effects of migration. NI = natural increase; NM = net migration; other capital letters stand for the intersection between lines, which indicate a change in the patterns of urban growth (see the text) More
Journal Article
Demography (1969) 6 (2): 91–99.
Published: 01 May 1969
... indus- tries, the phenomenon of natural de- crease is very largely rural-despite our traditional conception of rural areas as areas of substantial natural increase. In a small minority of the natural de- crease counties, the situation is produced not by outmigration, but by heavy in- migration...