1-20 of 806

Search Results for Direct Replacement

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Image
Published: 28 July 2017
Fig. 3 The sequence of element replacement in the four vectors in the direction B→b→a→A More
Journal Article
Demography (1986) 23 (1): 13–30.
Published: 01 February 1986
..., though different seasonal patterns. The paper explores whether the correlation between labor demand, mortality events and fertility reflect some causal behavioral relationship. It is shown that the probability of a birth is lower in months with high opportunity cost of time. Direct replacement...
Journal Article
Demography (1980) 17 (4): 429–443.
Published: 01 November 1980
... additional children in anticipa- tion of some deaths. If such hoarding is the only response to higher mortality rates there will be no direct connection be- tween an additional child death in the family and additional fertility even though replacement-type behavior exists. While pure hoarding may...
Journal Article
Demography (2020) 57 (6): 2085–2111.
Published: 29 October 2020
... Studies (CFPS), this study improves on previous research by using direct measures of parental investment, including monetary and nonmonetary investment, and distinguishing household-level from child-specific resources. It also exploits the longitudinal nature of the CFPS to mediate the bias arising from...
FIGURES | View All (5)
Includes: Supplementary data
Journal Article
Demography (1983) 20 (3): 391–405.
Published: 01 August 1983
... defined in terms of surviving children. A replacement effect could come about in two ways. First, actual deaths could elicit a response from the parents to replace the lost child (direct 391 replacement). This direct effect includes both volitional responses to replace the lost child and biological...
Journal Article
Demography (2017) 54 (4): 1579–1602.
Published: 28 July 2017
...Fig. 3 The sequence of element replacement in the four vectors in the direction B→b→a→A ...
FIGURES | View All (6)
Includes: Supplementary data
Journal Article
Demography (2011) 48 (1): 211–239.
Published: 26 February 2011
... of the vector M by elements of the vector M′. Results of the procedure Eq. 7a are not exactly the same, depending on whether one replaces M by M′ or, vice versa, M′ by M. Hence, it is useful to calculate the second set of components by making the opposite-direction stepwise replacement of the elements...
FIGURES | View All (8)
Journal Article
Demography (1999) 36 (1): 41–58.
Published: 01 February 1999
... effects reduce the rate of increase while their child mortality-related effects 41 42 accelerate the rate of increase (Bongaarts 1987, 1988; Palloni and Kephart 1989; Potter 1988; Trussell 1988; Trussell and Pebley 1984). The causal relation also works in the opposite direction: Infant and early childhood...
Journal Article
Demography (1984) 21 (4): 519–536.
Published: 01 November 1984
... by direct observation of a woman's birth/child-death history. In- stead, in order to capture the dynamic nature of child replacement, the model assumes separate distributions for initial births, child deaths, and replacement births that are not independent of one another. Their parameters are then esti...
Journal Article
Demography (1988) 25 (1): 141–144.
Published: 01 February 1988
... in print.First, the direction of the replacement effect is not determined by the quality of entering and departing workers alone but, rather, by the entire age profile of labor quality. Second, a simple model is used to demonstrate the absence of welfare implications associated with the replacement effect...
Journal Article
Demography (1991) 28 (3): 467–479.
Published: 01 August 1991
... (if any) other countries. Direct calculations of Henry's probabilities have been made, however, from a 1% sample of the 1971 census of England and Wales (Nf Bhrolchain 1987), and from China's 1982 one-per-thousand fertility survey (Feeney and Yu 1987). Direct calculation from World Fertility Survey-type...
Journal Article
Demography (1982) 19 (1): 125–133.
Published: 01 February 1982
...-run extinction. The eastern portion of the country develops demographically in a more complex way. Any population that exists there must either be direct immigrants or the descendants of immigrants. Hence this population (that is, the female part of it) will consist at any time of surviving immigrant...
Journal Article
Demography (2007) 44 (4): 771–784.
Published: 01 November 2007
... the direct fertility impact of a preference for sons. Results for mortality hazard ratios are consistent with the hypotheses of insurance and replacement effects. In Table 2, the main effects of all four mortality indicators are positive and signi cant. The combined indicator of biological and behavioral...
Journal Article
Demography (2011) 48 (4): 1581–1599.
Published: 27 September 2011
... momentum is inexact whenever k 1  ≠ 0 in Eq.  17 . This corresponds to situations in Fig.  1 in which S 1  ≠  S 2 . What are the conditions that determine the magnitude and direction of k 1 ? Third, work by Li and Tuljapurkar ( 1999 , 2000 ) has opened up new avenues of inquiry concerning...
FIGURES | View All (6)
Journal Article
Demography (2008) 45 (3): 641–650.
Published: 01 August 2008
... Population Model. Demography 20:111 15. 1990 Immigration, Below-Replacement Fertility, and Long-Term National Population Trends. Demography 27:121 29. Oeppen, J. and J.W. Vaupel. 2002. Broken Limits to Life Expectancy. Science 296:1029 31. Pollard, J.H. 1966. On the Use of the Direct Matrix Product...
Journal Article
Demography (2015) 52 (1): 15–38.
Published: 14 January 2015
..., China, and India, among others, and are likely to recur given rising population densities in areas increasingly vulnerable to environmental crises (Marshall and Picou 2008 ; Vos et al. 2010 ). By drawing direct comparisons between estimated effects at the community level and estimates of replacement...
FIGURES
Journal Article
Demography (1982) 19 (4): 549–565.
Published: 01 November 1982
... © Population Association of America 1982 1982 Current Population Survey Stable Population Probability Generate Function Direct Descendant Sibship Size References Atkins John R. ( 1974 ). On the Fundamental Consanguineal Numbers and their Structural Basis . American...
Journal Article
Demography (1992) 29 (3): 467–486.
Published: 01 August 1992
... is a direct result of decisions and choices regarding household mobility. The decision to move is typically viewed as an ameliorative response to mismatches between household needs or preferences and housing unit amenities (Quigley and Weinberg 1977; Speare 1974). Upon realizing an imbalance, the household...
Journal Article
Demography (1984) 21 (3): 323–337.
Published: 01 August 1984
... was breastfed. The availability of this information permits a more direct test for the presence of behavioral fac- tors than earlier studies have been able to obtain. The fact that many children under the age of one are not breastfed, and many older children are breastfed, suggests that Fernandez' (1974) ap...
Journal Article
Demography (1990) 27 (1): 121–129.
Published: 01 February 1990
... at that age remains less than 4 per 1,000. So the derivative must vanish shortly after age 0 and may remain positive thereafter only to vanish again at an advanced age. In the case of U.S. females, that will not happen before the age of 45. Attention of the national planners should be directed toward...