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At least 235 records · Page 13Linked to original sources
PubMed1983

Analysis of gross migration profiles in England and Wales: some developments in classification.

"In this paper [the authors] describe the development and application of two approaches to the analysis of age and sex specific interarea migration. The data relate to local authority areas in England and Wales. These approaches are developments of established migration profile-fitting and cluster analytic methods. The paper shows how these methods have been used to develop complementary classifications from which potentially valuable criteria for migration analysis can emerge. The work described is part of a wider project concerned with the development of methods to improve the official estimation of internal migration in England in the context of local area population forecasting."

Age Factors↗
PubMed1984

A comparison of population estimation methods: housing unit versus component II, ratio correlation, and administrative records.

The authors present the case for the housing unit (HU) method as a technique for estimating the population of states and local areas in the United States. They "evaluate population estimates produced by the housing unit method and by three other commonly used methods: component II, ratio correlation, and administrative records. Basing [the] analysis on 1980 census data from 67 counties in Florida and testing for precision, bias, and the distribution of errors, [they find that] application of the HU method performs at least as well as the more highly acclaimed methods of local population estimation."

Americas↗
PubMed1988

A Markov chain for calculating the durability of marriage.

"The usual Markov model of marriage permits informative experiments on the effect of alterations in the transition rules. It can tell, for example, what difference it would make to the durability of marriage if there was no divorce and the other transitions were as observed. This is in addition to the capacity of the usual model to find the effect of small changes in the transition rates. Canadian data for 1970-1982 permit comparisons over time, and show among other things not only that married men live longer than single, but that the difference is increasing; the increase in the 'marriage bonus' over time also appears for women." (SUMMARY IN FRE)

Americas↗
PubMed1988

The multistate life table with duration-dependence.

"A method for generalizing the multistate, or increment-decrement, life table to include rates which depend upon duration of exposure to risk, as well as upon age, is proposed. The method is built upon the linear approximation, called the linear integration hypothesis, developed mainly by Rogers and his colleagues.... It is possible to derive several new summary indices of the life-table cohort's history, such as the mean and median time in current status, at any age. The method is illustrated using a simple four-state marital-status model which has appeared often in the literature; here, rates of divorce and widowhood vary by duration of marriage as well as age." An example is demonstrated using 1984 period data for women in Finland aged 15-50. (SUMMARY IN FRE)

Age Factors↗
PubMedDate not supplied

Development, "welfare," and fertility: a simple macroanalysis.

Accepting the theoretical position that desired family size is likely to diminish as economic modernization occurs, the author analyzes the association between fertility and development using recent national data from less developed countries. Measures of income and equality are combined to provide an index of population "welfare." Multiple and cross-lagged correlations are used to demonstrate the magnitude and nature of the relationship between welfare and fertility rates. Despite inadequacies of the data, high negative correlations are obtained, and evidence is advanced to show that the direction of causation is from welfare to fertility.

Adult↗
PubMedDate not supplied

Education and timing of parenthood among Canadian women: a cohort analysis.

This research examines factors associated with the timing of first birth in Canada, focusing primarily on the role of women's educational attainment. Proportional hazards modelling techniques are applied to data from the 1984 Canadian Fertility Survey (CFS) in order to determine how educational attainment, estimated as close as possible to the date of first birth, influences the timing of first birth and whether the importance of this variable varies according to age cohorts. The results suggest that among a number of variables useful for distinguishing different levels of risk, educational attainment proves to be the most important predictor in the model. Education exerts a substantial positive influence on birth timing for women of all age groups. As expected, moreover, significant cohort differences are also evident, with the greatest to the smallest impact on the risk from the youngest to the oldest cohorts. These clear-cut cohort differences indicate a fundamental change in the effects of education over time, a trend most likely resulting from substantial changes in both the content and social significance of formal schooling during the past few decades.

Adolescent↗