Measuring the effect of sex preference on fertility: The case of Korea

Preferences for male or female children or a balanced number of sons and daughters are common throughout the world. The dominant preference is for male offspring, particularly in less developed countries. Strong son preference is often tempered, however, by a desire to have at least one child of each sex. In more developed countries a balance preference is more common, often together with a strong preference for the first child to be a son. Although it is usually assumed that sex preference can substantially influence fertility, some analysts argue that the effect is negligible. An intermediate position is taken by those who say that sex preference may not have much impact at high fertility levels, but that as average family sizes begin to fall, sex preference will become a more important factor in fertility decisions. Despite the keen interest that has been shown in sex preference, there is surprisingly little empirical evidence of its effects on fertility. Moreover, much of the research in this area is methodologically weak. The measures that have been used in the past have been subject to a number of criticisms that call their results into question. This paper proposes a new measure of the effect of sex preference on fertility that avoids many of the problems inherent in other methods. The measure is based on widely available survey data on the sex composition of children and can be used with any measure of fertility or family planning. It can handle any type of sex preference and does not assume a linear relationship between sex preference and fertility.(ABSTRACT TRUNCATED AT 250 WORDS)     

子女孩次性别结构与女性再生育——基于孩次性别递进生育率的分析

现有子女的孩次性别结构是影响女性再生育的重要因素。使用中国2000年人口普查数据和时期孩次性别递进生育指标对女性生育水平进行了测算。结果显示,女性普遍生育但终身只生育一个孩子的比例很大,基于孩次性别结构的生育行为体现了男孩偏好;城市和镇在生育第一孩时就存在性别选择;第一个孩子是女孩的女性生育二孩的可能性较大,且二孩是男孩的比例显著大于是女孩的比例;第一个孩子是男孩的城市和镇的女性大部分不再生育,而农村女性有很大比例会生育二孩,但几乎不存在性别选择。采用某地区2019年的数据进行补充验证,同样发现:只有一个女孩的女性相比较只有一个男孩的女性生育者生第二孩的可能性要高很多,以上研究发现对当前二孩生育行为具有一定的启示意义。     

An Individual Relative Deprivation Index and Its Curve Considering Income Scope

China is characterized by a low fertility intention, a strong preference for sons, as well as a stringent birth control policy. In this study, we used data from a Fertility Intention and Behavior Survey of 2101 questionnaires conducted in 2013 in Shaanxi Province of northwestern China, and event history analysis methods to examine the effect of fertility intention and preference for sons on the probability of having a second child. The results not only validate the correlation of fertility intention with having a second child empirically, even in the low fertility intention and stringent birth control context of China, but also show that women with a preference for sons were less likely to have a second child. Women with son preference turn to sex-selective abortion to ensure that their first child is a son, thus reducing the likelihood of a second child and decreasing the fertility rate. Our findings also shed light on China’s potential fertility policy adjustment.     

现代夫妻关系对妇女男孩偏好的影响

在影响妇女男孩偏好的因素中，夫妻关系是非常重要的一个方面。文章利用中国人民大学人口与发展研究中心2010年在浙江、湖北和河北3个省份开展的“农村妇女家庭及生育状况”专题调查数据，运用回归模型分析了现代夫妻关系对妇女男孩偏好的影响。研究发现，目前我国的夫妻关系表现出明显的现代特征，而且现代夫妻关系对妇女的男孩偏好起着弱化的作用。家庭地位高、权力资源丰富、对丈夫家依赖程度较低的妇女，她们的男孩偏好比较弱。     

Fertility,gender preference,the Birth Planning Policy and life satisfaction in China

Using data from China Family Panel Studies 2010, we evaluate the role of the Birth Planning Policy (BPP) in altering decisions to have another child by birth parity, and the relationship of life satisfaction with the gender structure of the children of Chinese residents. We find strong positive effects of the BPP on the decision of having an additional child for Chinese residents, particularly if the previous children were girls. In spite of strong son preference in fertility behaviour, residents whose children are all daughters are found to be more satisfied with their lives than with other gender structures. The empirical findings support the view that daughters are more helpful in providing assistance to parents and in mitigating family conflicts hence increasing life satisfaction, while son preferences may be pursued reasons of lineage and hence do not result in more satisfied lives. We also find evidence that the BPP penalty might be a reason why having more sons could reduce life satisfaction.     

Mother's education and effect of son preference on fertility in Matlab,Bangladesh

This analysis follows earlier research that hypothesized and substantiated that, in a society with strong son preference, its effect on fertility would be conditional on the level of contraceptive use. Present analysis of the prospective fertility experience of 22,819 women of reproductive age during 3.5 years in Matlab, Bangladesh, shows that this effect is higher among mothers with postprimary schooling versus those with primary or no education. The higher effect conforms with the known positive relationship of contraceptive use with maternal schooling. However, this increase when contrasted with the idea that education promotes modern values, including gender equality, suggests that education in Matlab, with its traditional slant, is not resistant to son preference. In a poor, traditional society with low status for women, schooling alone is not enough to motivate women to abandon low esteem for daughters though schooling promotes child survival. But if preference for smaller family size increases, promoted by education including such modern values as gender equality, then sex preference, although it cannot be completely removed, will have minimal effect on fertility as in most developed countries.Abbreviations DSS demographic surveillance system - ICDDR,B International Centre for Diarrhoeal Disease Research, Bangladesh - MCH-FP maternal/child health and family planning - SPEF sex preference effect on fertility     

Sex preference versus number preference: the case of Korea

The author argues that the effect of sex preference must be disentangled from the effect of number preference in Korea. This study tests--with hazard models--the effect of the number of previous children on the next birth according to the sex composition of previous children. Data were obtained from the 1974 Korean Fertility Survey. This paper also analyzes the timing of childbearing in recent periods in order to determine whether replacement-level fertility is temporary or permanent. The ideal number of children declined from 3.9 children in 1965 to 2.1 in 1991. The age-specific fertility rates for ages 20-24 years declined rapidly during the late 1980s. The fertility rates among women aged 25-29 years and 30-34 years increased during 1985-90. The proportion of fertility among women aged 20-29 years increased from 67.9% in 1975 to 86.6% in 1984. Women born in the late baby boom period of the late 1950s to mid-1960s reached prime reproductive age during the late 1980s and 1990s, but the crude birth rate remained about the same during 1985-92. A higher percentage of women (22.4%) born during 1955-59 remained single in 1990. During 1960-90, the percentage of women aged 20-24 years who were married declined. These trends indicate later age at childbearing and an explanation for the temporary nature of below-replacement fertility in the late 1980s. Korean women did not want to have more than 2 children, and the interval between first and second births increased since 1985. Among pregnancies of parity 2 conceived since 1985, over 90% of women with at least one son ended subsequent pregnancies by abortion compared to only 59% without sons. Hazard models of 1974 data reveal that son preference had an important effect on fertility. Fertility was higher among women with only daughters. Findings suggest that the value of sons must be measured at the societal and not at the individual level.     

Old Habits Die Hard? Lingering Son Preference in an Era of Normalizing Sex Ratios at Birth in South Korea

South Korea was among the first countries to report both an abnormally high sex ratio at birth (SRB) and its subsequent normalization. We examine the role of son preference in driving fertility intentions during a period of declining SRB and consider the contribution of individual characteristics and broader social context to explaining changes in intentions. We employ data from the National Survey on Fertility, Family Health and Welfare that span 1991–2012. We find that reported son preference declined to a great extent but remained substantial by the end of the observation period, and that the intention to have a third child still differed by sex of existing children. Change in individual-level factors does not explain the decline in son preference, suggesting that broad social changes were also important. This study provides a better understanding of how son preference evolves in the post-transitional context of very low fertility.     

The First Fifty Years – A Tribute to E. Grebenik

India is a country with a pervasive preference for sons and one of the highest levels of excess child mortality for girls in the world (child mortality for girls exceeds child mortality for boys by 43 per cent). In this article, data from the National Family Health Survey are used to examine the effect of son preference on parity progression and ultimately on child mortality. The demographic effects of family composition are estimated with hazard models. The analysis indicates that son preference fundamentally affects demographic behaviour in India. Family composition affects fertility behaviour in every state examined and son preference is the predominant influence in all but one of these states. The effects of family composition on excess child mortality for girls are more complex, but girls with older sisters are often subject to the highest risk of mortality.     

Fertility,Education, and Development: Evidence from India

Fertility has declined significantly in many parts of India since the early 1980s. This article examines the determinants of fertility levels and fertility decline, using data on Indian districts for 1981 and 1991. The authors find that women's education and child mortality are the most important factors explaining fertility differences across the country and over time. Low levels of son preference also contribute to lower fertility. By contrast, general indicators of modernization and development such as urbanization, poverty reduction, and male literacy exhibit no significant association with fertility. En passant, the authors probe a subject of much confusion— the relation between fertility decline and gender bias.     

Son Preference and Children’s Housework: The Case of India

We use a nationally representative survey of Indian households (NFHS-3) to conduct the first study that analyzes whether son preference is associated with girls bearing a larger burden of housework than boys. Housework is a non-negligible part of child labor in which around 60 % of children in our sample are engaged. The preference for male offspring is measured by a mother’s ideal proportion of sons among her offspring. We show that when the ideal proportion increases from 0 to 1, the gap in the time spent on weekly housework for an average girl compared to that of a boy increases by 2.5 h. We conduct several robustness analyses. First, we estimate the main model separately by caste, religion, and family size. Second, we use a two-stage model to look at participation into housework (as well as other types of work) in addition to hours. Third, we use mother’s fertility intentions as an alternative measure of son preference. The analysis confirms that stated differences in male preference translate in de facto differences in girl’s treatment.     

Preference for Sons,Family Size,and Sex Ratio: An Empirical Study in Korea

This study investigates the effects of son preference on sex ratio and fertility at the family level, utilizing World Fertility Survey data for Korea, whose population is known to have a strong preference for sons and a fairly high level of contraceptive use. The sex ratio (number of males per 100 females) of siblings in small families is considerably higher than in large families. The sex ratio of last-born children in families of any size is markedly higher than that of the previous children. The sex distribution of children for a given family size, if less than five, deviates significantly from the Bernoulli sequence. The observed frequency of all-girl families is especially small in comparison with the expected value. The sex of the last child strongly influences couples' decision making regarding additional births in all steps of family building except for bearing a second child. In increasing their families to moderate size, parents appear to take into consideration the sex distribution of all earlier births.     

The one child certificate in Hebei province,China: Acceptance and consequence, 1979–1988

As part of its One Child Policy, China developed the one child certificate which offered numerous benefits to couples who had one child and promised to have no more. Using data from the Two-per-Thousand National Fertility Survey, this study describes the level of certificate acceptance in Hebei province from 1979 to 1988 and analyzes socioeconomic, cultural and early family formation factors affecting certificate acceptance as well as the role of certificate acceptance on transition to second parity. During the past decade, the level of initial certificate acceptance was 22.6 percent. This estimate is much lower than earlier published rates because it utilizes the concept of women at risk. Public resistance to the One Child Policy is evident in declining acceptance from 26.0 percent during the first five years of the policy to 11.3 percent during the 1984–1988 period. Women's response to the certificate has been influenced by the woman's status as reflected in education and occupation as well as cultural traditions, particularly son preference. The one child certificate, however, independently depresses subsequent fertility. This research indicates that efforts to understand fertility decline in China must simultaneously acknowledge the role of government family planning programs as well as socioeconomic and cultural factors.Revision of paper presented at the American Sociological Association Meeting, 1990.     

Intention and uncertainty at later stages of childbearing: the united states 1965 and 1970

While births may be dichotomous, fertility intentions are not inherently so. Intentions are predictions about the future and, as such, are couched in considerable uncertainty. Ignoring this uncertainty hides much of what could be learned from data on fertility intentions. This paper presents a model which allows analysis of the full range of intentions. After selecting a sample of women in the later stage of childbearing (e.g., those who intend fewer than two additional children) from the 1965and 1970 National Fertility Studies, it is shown that: (1) substantial portions of women at this stage of the reproductive life cycle were indeed uncertain of their parity-specific intention; (2) this certainty, like more firm intentions, varies by age and parity as the model predicts; and (3) there were significant shifts in the level of certainty between 1965 and 1970. Specifically, while intentions for third, fourth, and fifth births declined, more women “didn’t know” if they intended to have another child or not. Among those not intending another child, more seemed uncertain of this intention in 1970 than did comparable women in 1965. In contrast, those intending another child seemed more certain. These changes in intention and uncertainty indicate that the observed decline in intended parity was tentative. Post-1970 evidence suggests that this tentative decline has become an unequivocal one.     

Survival and sex composition of offspring: Individual-level responses in the quantum and tempo of childbearing during the demographic transition

Previous studies have documented varying fertility responses to childhood mortality and to the sex composition of the surviving offspring during the demographic transition. We contribute to this literature by applying a mixture cure model to reproductive histories of Estonian women born 1850–99. This model, unlike standard event history models, is capable of separating the effect of the covariates on the propensity of having another birth from their effect on its timing. Child fatalities, not having sons, and to a smaller extent, not having daughters, increased the propensity to have another child and decreased the interval to it. The response was stronger among later cohorts, but only with respect to parity progression. By contrast, the accelerated childbearing response diminished over time. Our findings suggest that behavioural responses in the quantum and tempo of childbearing can occur relatively independently.     

Sex preference for children in German villages during the fertility transition

In the past, parents' sex preferences for their children have proved difficult to verify. This study used John Knodel's German village genealogies of couples married between 1815 and 1899 to investigate sex preferences for children during the fertility transition. Event history analyses of couples' propensity to progress to a fifth parity was used to test whether the probability of having additional children was influenced by the sex composition of surviving children. It appears that son preference influenced reproductive behaviour: couples having only girls experienced significantly higher transition rates than those having only boys or a mixed sibset. However, couples who married after about 1870 began to exhibit fertility behaviour consistent with the choice to have at least one surviving boy and girl. This result represents a surprisingly early move towards the symmetrical sex preference typical of modern European populations.     

A probability mixture model of completed parity

This research was designed to find a probability model that would adequately describe completed parity for women in populations characterized by high fertility combined with high zero parity. A negative binomial mixture distribution was adapted for this purpose. The form of this distribution suggests the hypothesis that human populations consist of two subgroups of women with respect to completed parity, defined according to whether they do or do not produce viable offspring. Results of the present research further suggest that the proposed distribution for completed parity has general applicability across human populations, whether they are of a high or low fertility type, and whether they have a high or low zero parity.     

Are simple tests of son preference useful? An evaluation using data from Vietnam

Son preference is widespread although not universal. Where it occurs it may lead to higher fertility rates. Ideally son preference should be measured in the context of a hazards or parity progression model of fertility, or a logistic model of contraceptive use. Such models require large amounts of survey data, particularly to measure the covariates. Can son preference be discerned reliably using tests which rely on more limited information? The answer is yes, based on applying eight simple tests to data from the Vietnam Living Standards Survey of 1992–93 and comparing the outcomes with the benchmark results from fuller models. Some, but not all, of the simpler tests accurately measure son preference, including estimating a simple hazards or progression parity model, the unisex sibship test, and the sibling differentials test. Received: 28 September 1995 / Accepted: 2 January 1997     

Son preference and the one child policy in China: 1979–1988

Using data from the Two-Per-Thousand National Fertility Survey, this research analyzes how son preference, a deep-rooted cultural norm for more than two thousand years, affects compliance with China's one child population policy for women at risk during the period of 1979 to 1988. Four events after the first live birth are used to evaluate compliance with the policy: (1) certificate acceptance (an indicator of future fertility intention); (2) the use of contraceptives (an indicator of intention to prevent a subsequent pregnancy); (3) the occurrence of a pregnancy subsequent to the first live birth (a potential violation of the one child policy), and (4) among those pregnant, the likelihood of an abortion (an indicator of compliance by preventing a second live birth). It is found that son preference is still prevalent in China. Although the effect of son preference is not the most important, urbanization, education, and occupation have not fundamentally changed its influence on women's compliance. In addition, the effect of son preference on the compliance is not altered by government control. Preference for sons continues to be a factor discouraging the compliance with the one child policy.This article is based on a paper presented at the annual meeting of the Population Association of America, 1–4 April 1993, Cincinnati, OH, USA.     

The Decline of Son Preference in South Korea: The Roles of Development and Public Policy

For years, sex ratios at birth kept rising in South Korea despite rapid development. We show that this was not an anomaly: underlying son preference fell with development, but the effect of son preference on sex ratios at birth rose until the mid‐1990s as a result of improved sex‐selection technology. Now South Korea leads Asia with a declining sex ratio at birth. We explore how son preference was affected by development and by public policy. Decomposition analysis indicates that development reduced son preference primarily through triggering normative changes across society—rather than just in individuals whose socioeconomic circumstances had changed. The cultural underpinnings of son preference in preindustrial Korea were unraveled by industrialization and urbanization even as public policies sought to uphold the patriarchal family system. Our results suggest that child sex ratios in China and India may decline before those countries reach South Korean levels of development, since the governments of both countries vigorously promote normative change to reduce son preference.