125 research outputs found
The Demographic Transition
Demographic transition is a set of changes in reproductive
behaviour that are experienced as a society is transformed from a
traditional pre-industrial state to a highly developed, modernized
structure. The transformation is the substitution of slow growth
achieved with low fertility and mortality for slow growth maintained
with relatively high fertility and mortality rates. Contrary to early
descriptions of the transition, fertility in pre-modem societies was
well below the maximum that might be attained. However, it was kept at
moderate levels by customs (such as late marriage or prolonged
breast-feeding) not related to the number of children already born.
Fertility has been reduced during the demographic transition by the
adoption of contraception as a deliberate means of avoiding additional
births. An extensive study of the transition in Europe shows the absence
of a simple link of fertility with education, proportion urban, infant
mortality and other aspects of development. It also suggests the
importance of such cultural factors as common customs associated with a
common language, and the strength of religious traditions. Sufficient
modernization nevertheless seems always to bring the transition to low
fertility and mortality
The Effect of Age Misreporting in China on the Calculation of Mortality Rates at Very High Ages
When mortality rates by age are calculated from recorded deaths and enumerated populations, rates at higher ages are typically in error because of misstated ages. Mortality rates for China in 1981 have been calculated from the number of deaths in 1981 in each household recorded in the 1982 census, and from the census population back-projected one year. Because age was determined from date of birth, and because persons of the Chinese culture have very precise knowledge of date of birth, the mortality rates even at high ages should be unusually accurate. This expectation is fulfilled for most of China, but severe misreporting of age is found in a province that contains a large minority of a non-Han nationality, which lacks precise knowledge of date of birth. Although the province contains only 1.3% of China’s population, male death rates above age 90 for all of China are distorted seriously by the erroneous data from this location
The Decline of Remarriage: Evidence From German Village Populations in the Eighteenth and Nineteenth Centuries
Family reconstitution data for fourteen German village populations permit the examination of remarriage during the eighteenth and nineteenth cen turies. The results provide compelling evidence for a secular decline in the tenden cy to remarry. Pronounced age and sex differentials in the likelihood of remar riage were evident: widows were far less likely to remarry than widowers, and the probability of remarriage declined rapidly with age, particularly for women. The probability of remarriage was also inversely associated with the number and age of children. There were, however, no clear differences in either the probability of remarriage or its tendency to decline over time among major occupational groups. The decline in remarriage probabilities was caused in part by declines in adult mortality, which gradually raised the ages of surviving spouses to levels at which remarriage has historically been rather unlikely. However, age-specific marriage probabilities also declined, affecting both men and women and all oc cupational groups, suggesting the presence of a social change of wide scope. Some comments on possible factors contributing to the decline of remarriage are presented. The need for a comprehensive explanation of remarriage trends and differentials remains an important challenge for family historians.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/68212/2/10.1177_036319908501000103.pd
Short-Term Trends in Bastardy in Taiwan
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/68002/2/10.1177_036319908000500303.pd
Preferences for the Sex of Offspring and Demographic Behavior in Eighteenth- and Nineteenth-Century Germany: an Examination of Evidence From Village Genealogies
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/68167/2/10.1177_036319908000500202.pd
EstimaciĂłn robusta de la fecundidad mediante el empleo de modelos de poblaciones estables
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