HIV and Unintended Fertility in Sub-Saharan Africa: Multilevel Predictors of Mistimed and Unwanted Fertility Among HIV-Positive Women

Population Research and Policy Review - Sub-Saharan Africa (SSA) has a disproportionate burden of both unintended fertility and HIV infection, but the relationship between these two reproductive...     

Effects of Childhood Mortality and Morbidity on the Fertility Transition in sub‐Saharan Africa

Child mortality rates have fallen substantially in developing countries since 1960. The expected fertility decline has followed only weakly in sub‐Saharan Africa compared to other recent and historic demographic transitions. Disease and anthropometric data suggest that morbidity remains prevalent in Africa despite child survival improvements. The uniquely high infectious disease burden among children in Africa reduces population health and diminishes the returns to human capital investment, thwarting the quantity–quality tradeoff for children that typically accompanies the mortality transition. Individual‐level data from the Demographic and Health Surveys are used to show that persistent morbidity has weakened the positive relationship between child mortality and total fertility rates throughout the region, slowing Africa's demographic transition.     

生育理性和生育决策与我国低生育水平稳定机制的转变

自改革开放以来 ,我国人口生育率水平出现了迅速的转变 ,特别是 1 992年我国确立了市场经济为目标的经济改革以来 ,生育率水平更是进一步降低到更替水平以下。如果说 ,生育率的迅速转变是在国家计划生育政策干预下启动的 ,那么 ,在 1 990年代生育率的下降应该主要是社会和经济发展的结果。以市场经济为导向的经济改革和经济的迅速发展 ,已经为稳定我国城市地区人口低生育率水平提供了必要的经济条件 ,同时 ,制度、技术和文化等因素的变革已经为我国个人生育决策理性化创造了条件 ,低生育水平的稳定机制已经开始从政策控制为主转向群众自我控制为主的转变     

Fertility preferences and subsequent childbearing in Africa and Asia: A synthesis of evidence from longitudinal studies in 28 populations

Survey data on fertility preferences have played a central but controversial role in fertility research and advocacy for family planning. We summarize evidence from longitudinal studies in 28 Asian and African populations on the relationship between preferences and subsequent childbearing. While we found no consistent association between women's desire to delay childbearing and subsequent fertility, the baseline desire of women to stop childbearing was a powerful predictor of subsequent fertility in all populations and increased in strength as overall contraceptive use in the study populations rose. Partners’ desire also exercised some influence but was of modest importance in most populations. However, the correspondence between desire to stop and behaviour was found to be far from perfect. Weak implementation of preferences by contraception is likely to be the major cause of this preference–behaviour discrepancy. Uncertainty and instability in preferences may also contribute to the discrepancy, particularly in sub-Saharan Africa.     

论生育文化和生育文明

生育文明中表现了生育文化的种种现象和活动,生育文化也体现了生育文明的历史轨迹、进程和内容。生育文化的发展表现了不同时期人类生育文明的进步与发展,不体现生育文化内涵的生育文明显然是不存在的。然而,严格说来,生育文化和生育文明是既有密切联系,又有一定区别的两个不完全等同的概念。正确认识和理解生育文化和生育文明的概念、内涵、功能及其相互关系,对于推动新时期人口计生工作的深入发展,进一步开展人口和计划生育的理论研究,具有十分重要的意义和作用。     

Fertility trends in Australia

Using published data from the Australian vital registration and census systems, several time series are compiled: crude birth rates from the 1860s; fertility rates from the 1880s; age-specific and parity-specific measures from the 191Os; cumulative fertility measures by birth year of parent beginning with the 1890s; and cumulative fertility measures for marriages by year contracted from the 1910s.The decline in fertility to the 1930s, the upswing to 1961, and declines thereafter revealed by annual fertility measures show far more variation than do measures of total generation fertility—2.7 children per woman born in 1893–95, 2.3 1906–10, 2.8 1921–25, and perhaps 3.0 for women born in the 1930s. Both annual and generation measures show a younger age at parenthood, a decrease in childlessness, and progressively fewer large families. In the light of present experience, it seems not unreasonable to project generation fertility of 2.5 children, implying a crude birth rate of about 20 per thousand for the next fifteen years or so.     

Fertility decline in Kinshasa

This paper examines key socio-economic changes over the past 40 years in the lives of women in Kinshasa, Zaire, and how those changes relate to observed fertility behaviour. Data from surveys carried out in 1955, 1975, and 1990 are used to highlight the remarkable shift that has taken place in the educational attainment of women: in the 1950s the vast majority of adult women had no formal education, while by 1990 the median woman had been to secondary school. This dramatic shift was accompanied by several related changes, including delays in age at marriage and increased participation in the labour market. Total fertility, which was estimated at 7.5 in the 1950s and had not changed much by 1975, appears to have fallen more recently, by about 1.5 children or more. This decline in fertility appears to be closely linked to the improvements in secondary schooling for women in Kinshasa.     

甘肃省居民生育意愿与生育目的的调查研究

文章利用2007年调查数据,分析研究了甘肃省居民的生育意愿和生育目的。调查发现．随着经济的发展和社会的进步,甘肃省居民的意愿生育数量不断减少,已经略低于更替生育水平,男孩偏好的意愿生育性别倾向仍然广泛存在,期望生育一儿一女是大部分甘肃居民最为普遍的愿望,意愿妇女初育年龄不断推迟．生育目的呈现出多元化趋势,但养老送终、传宗接代仍是目前最重要的生育目的。     

应用队列累计生育率分析我国生育水平变动趋势——兼与郭志刚教授讨论

本文对反映生育水平的两个基本指标——总和生育率和队列累计生育率进行分析,肯定多年来多个调查所得到的队列累计生育率的数据质量。尽管队列累计生育率反映的是"过去"而不是"当前"的实际生育水平,但历次调查所反映出的1990年代以来生育水平变化趋势是持续下降,并推断近几年的总和生育率已经下降到1.6以下。     

从政策生育率看中国生育政策的多样性

以政策生育率为量化指标以期具体地反映我国的生育政策在地区分布、人口分布和地理分布上的多样性。本文的分析表明 ,1 3～ 1 5之间的政策生育率都在全国占主导地位 ,全国人口的大多数处于 1 3～ 2 0之间的政策生育率地区 ,实行“1 5孩”生育政策的人口占全国的一半以上。从本文可以得出结论 ,在鼓励“少生”的总原则下 ,从当地的实际出发 ,全国各地的生育政策呈现出相当多样化的情况 ,把中国的生育政策笼统地归结为是一个不加区别的、全国一律的“一孩政策”是不符合实际的     

生育率的经济学分析

本文在前人研究的基础上,从经济学角度分析了家庭收入对生育决策的影响,并尝试进一步推导出“收入-生育率”曲线。与以往研究不同的是,本文认为生育率与家庭收入并不总是呈反向关系,而是收入到了一定水平以后,生育率水平又会随之上升,即“收入-生育率”曲线基本呈扁平“U”形曲线形态。     

Using Discrete-Time Event History Fertility Models to Simulate Total Fertility Rates and Other Fertility Measures

Event history models, also known as hazard models, are commonly used in analyses of fertility. One drawback of event history models is that the conditional probabilities (hazards) estimated by event history models do not readily translate into summary measures, particularly for models of repeatable events, like childbirth. In this paper, we describe how to translate the results of discrete-time event history models of all births into well-known summary fertility measures: simulated age- and parity-specific fertility rates, parity progression ratios, and the total fertility rate. The method incorporates all birth intervals, but permits the hazard functions to vary across parities. It can also simulate values for groups defined by both fixed and time-varying covariates, such as marital or employment life histories. We demonstrate the method using an example from the National Survey of Family Growth and provide an accompanying data file and Stata program.     

Fertility and development in Brazil

In the past, one of the concomitants of development has been a sustained reduction in fertility. As a result of this experience, demographers hypothesize that in a society in which fertility is lower in urban areas, among the upper socioeconomic status groups and the better-educated, fertility will decline to a moderate level as the country changes from a rural, agricultural socioeconomic structure, with low levels of living and education, to an urban, industrial structure, with rising levels of living and education.The data analyzed in this study indicate, however, that though substantial social and economic development (as measured by changes in industrial structure, per capita income, urbanization, and education) occurred in Brazil from at least 1920-40 to 1960, during which time fertility differentials of the kind indicated above existed, fertility has shown little 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. p ]From a theoretical point of view, these facts reinforce a growing realization, based on similar findings in some other developing countries, that the prevailing theoretical ideas concerning the relationship between development and fertility require modification, particularly in the direction of greater specificity. On the practical side, the question is raised whether Brazil's rate of economic development during the postwar period up to 1960 can be maintained, let alone increased, in the face of a population growth rate which will probably average 3.2-3.5 percent for the period 1960-70 and which, in the absence of a decline in fertility, is likely to accelerate further.     

中国低生育水平下的生育意愿与生育行为差异研究

在国家实行全面两孩政策背景下,认清生育意愿与生育行为的差异,是把握中国未来人口形势变化的关键。文章利用2010年以来的四次全国性抽样调查原始数据,对中国育龄人群的生育意愿与生育行为的差异及影响因素进行分析。研究发现:中国目前意愿生育水平在1.82~1.88的区间范围内,其点估计值在1.86左右,已显著低于更替水平;越年轻的出生队列其生育意愿越低,中国未来的意愿生育水平可能会继续降低;育龄人群的意愿生育水平要显著高于其终身生育水平,且二者差异随年龄的减小呈递增趋势,中国未来生育水平存在进一步下降的可能性;没有生育政策限制下的终身生育水平仅为1.68,这可以作为生育政策调整对中国生育水平影响的上限。生育政策对当前育龄人群生育意愿与生育水平差异的贡献度在33%左右,全面两孩政策对中国生育水平的提升作用有限。     

中国妇女生育意愿与生育行为的差异及其影响因素

生育行为与生育意愿背离现象广泛存在。在发达国家,普遍的情况是实际生育率大大低于意愿生育率。发展中国家同样出现了生育行为与生育意愿背离的现象,但更多呈现出与发达国家相反的规律。中国也出现了生育行为与生育意愿背离,且实际高于意愿的情况。根据中国2001年全国生殖健康调查,基本完成生育的40~49岁妇女,其平均理想子女数为1.8,而平均实际生育子女数为2.2。利用2001年全国生殖健康调查数据,考察中国妇女生育行为与生育意愿背离的特征和影响因素,并考察个体背景(个人特征和社会经济背景)、生育政策和生育孩子情况(包括孩子的性别结构和存活状况)对生育意愿与生育行为的差异产生的影响。结果表明,这些因素都对生育意愿与生育行为的差异产生显著影响,但性别偏好是造成生育行为大于生育意愿的主要因素。     

Wages and Fertility in Australia

This paper applies a simple economic model to explain short run movements in Australian fertility, abstracting from social and cultural conditions. It shows that Australian fertility can be modelled with some success using only wages and employment data, once we allow for the different effects of changes in men’s and women’s wages for the period 1966–90. The elasticity of the total fertility rate over this period is found to be negative with respect to women’s wages and positive with respect to men’s wages. As well as having the expected sign, the estimated elasticities are similar in magnitude to those for the United States over the period 1948–75.