Fertility choice,mortality expectations,and interdependent preferences—An empirical analysis

We investigate the empirical relationship between child mortality and fertility across 46 low and middle income countries. Specifically, we model the effect of mortality expectations and interdependent fertility preferences on fertility. The direct marginal effect of mortality expectations on fertility is larger than zero but less than unity. This implies that a decrease in mortality rates leads to a decrease in children born but to an increase in the number of surviving children and hence the rate of population growth. Taking into account interdependent fertility preferences, whereby an individual's fertility choice affects the fertility decisions of others, the marginal effect of mortality expectations on fertility becomes one. Hence, if we allow for both mortality expectations and the amplifying effect of interdependent fertility preferences, a decrease in child mortality has no net effect on the rate of population growth.     

Fertility and mortality changes in an overlapping-generations model with realistic demography

Many overlapping-generations models assume only working and retirement stages and are “not capable of representing the most basic feature of the human economic life cycle: that it begins and ends with periods of dependency, separated by a long intermediate period of consuming less than is produced” (Bommier and Lee, 2003). To examine the economic consequences of fertility and mortality changes in a common framework, we incorporate realistic demographic features into a continuous-time overlapping-generations model with childhood, adulthood and retirement stages. Using parameter values appropriate for industrial countries (such as the USA), we find that a fertility increase and a mortality decline, while both causing a rise in the population growth rate, have opposite effects on capital accumulation. We also consider simultaneous fertility and mortality changes, and find that the effect on capital accumulation of a mortality change dominates that of a fertility change.     

How do epidemics induce behavioral changes?

This paper develops a theory of optimal fertility behavior under mortality shocks. In an OLG model, young adults determine their optimal fertility, labor supply and life-cycle consumption with both exogenous child and adult mortality risks. We show that a rise in adult mortality exerts an ambiguous effect on both net and total fertility in a general equilibrium framework, while child mortality shocks unambiguously lead to a rise in total fertility, leaving net fertility unchanged. We complement our theory with an empirical analysis using a sample of 39 Sub-Saharan African (SSA) countries over the 1980–2004 period, examining the overall effects of the child and adult mortality channels on both total and net fertility. We find child mortality to exert a robust, positive impact on total fertility but no impact on net fertility, whereas a rise in adult mortality is found to negatively influence both total and net fertility. Given the particular demographic profile of the HIV/AIDS epidemic (killing essentially young, active adults), we then conclude in favor of an unambiguous negative effect of the HIV/AIDS epidemic on net fertility in SSA.     

On the relationship between female labour force participation and fertility in G7 countries: evidence from panel cointegration and Granger causality

This article examines the relationship between the female labour force participation rate and total fertility rate for the G7 countries from 1960 to 2006 using panel unit root, panel cointegration, Granger causality and long-run structural estimation. The article’s main findings are that the female labour force participation rate and total fertility rate are cointegrated for the panel of G7 countries; that long-run Granger causality runs from the total fertility rate to the female labour force participation rate and that a 1% increase in the total fertility rate results in a 0.4% decrease in the female labour force participation rate for the G7 countries.     

Female labour force participation,fertility and infant mortality in Australia: some empirical evidence from Granger causality tests

This study applies Granger causality tests within a multivariate error correction framework to examine the relationship between female participation rates, infant mortality rates and fertility rates for Australia using annual data from 1960 to 2000. Decomposition of variance and impulse response functions are also considered. The main findings are twofold. First, in the short run there is unidirectional Granger causality running from the fertility rate to female labour force participation and from the infant mortality rate to female labour force participation while there is neutrality between the fertility rate and infant mortality rate. Second, in the long run both the fertility rate and infant mortality rate Granger cause female labour participation.     

Life expectancy and economic development: Evidence from microdata

This study examines the effect of life expectancy on fertility, education, and labor force participation. Using birth and sibling histories from the Demographic Health Surveys conducted in sub‐Saharan Africa, I construct a time series of age‐specific birth rates and mortality rates at the country‐region level. I use these data to test the implications of a general equilibrium model linking life expectancy to fertility, human capital, and labor supply. My results suggest that increases in life expectancy reduce fertility, increase education, and increase labor force participation. Overall, my empirical results suggest that in sub‐Saharan Africa, increases in life expectancy will have a positive impact on growth through fertility, education, and labor supply but that the effect will be small. My results also rule out the possibility that recent shocks to adult mortality in high HIV prevalence countries will reduce fertility, increase labor productivity, and lead to faster growth.     

代际流动约束下生育率与收入不平等关系的国际检验

收入不平等问题和人口生育率过低问题是当下中国面临的两大难题,但目前理论界关于人口因素与收入不平等关系的研究,很少从生育率视角来考察以及考虑代际收入流动在其中的作用.文章从理论与经验两个方面来考察生育率对收入不平等的影响,理论模型表明:在关于代际收入流动的假设下,一个经济体中生育率的提高会使穷人比重提高,进而拉大收入不平等.进一步地,文章利用1970-2011年76个国家(地区)面板数据的经验研究发现:(1)总和生育率的提高会拉大收入不平等,如果每个妇女平均多生育一个孩子,将会使基尼系数增加0.025;(2)以出生率作为总和生育率替代指标的实证结果与基准结果基本一致,这说明不同生育率测算指标高度相关且可相互替代;(3)对于代际收入流动弹性越高、收入水平越低或生育率越高的国家(地区),其生育率提高对收入不平等的拉大作用越大.文章关于生育率对收入不平等影响的作用机制和异质性特征的考察,对于我国如何在实施"全面二孩"政策下寻求应对严峻的收入分配问题之策提供了国际经验和启示.     

中国低生育水平与意愿生育水平的差距

以历次全国性有关生育率的各项调查数据为基础,介绍了中国当前的低生育水平和低生育动态模式。依据近几年全国性有关生育意愿的调查数据,计算了在有计划生育政策条件下和无计划生育政策条件下的中国育龄妇女的意愿生育率。在有和无计划生育政策条件下,中国育龄妇女的意愿生育水平均低于更替水平,生育意愿在一定的相对较短的时期内可以保持稳定。使用官方公布的总和生育率与计算的育龄妇女的总和意愿生育率数据绘制了低生育水平和意愿生育水平之间的差距图。在低生育时代下中国育龄妇女的生育意愿和生育行为存在差距的现象与世界普遍存在的现象是相一致的。     

Human capital and economic development

This paper develops a general equilibrium model of fertility and human capital investment with young adult mortality. Because young adult mortality is negatively related to average young adult human capital, human capital accumulation lowers mortality, inducing demographic transition and industrial revolution. Data confirm that young adult mortality is related negatively to schooling, and the rate of return to schooling, and positively to fertility. The data indicate a negative relationship between TFP growth and schooling accumulation. The model fits the data on country populations, per capita incomes, human capital, total fertility rates, infant mortality, life expectancy and conditional life expectancy.     

Population change and economic development in Indonesia

Standard demographic transition theory holds that transition takes place concurrently with socioeconomic development. Oshima has generalized that the pace of demographic transition in Indonesia has been slow and in keeping with standard theory. This article, however, challenges Oshima's contentions and points out that Indonesia has been able to attain a level of demographic transition with a lower level of economic development than that experienced by present-day developed countries during their transitions from high fertility and mortality to low fertility and mortality. Sections consider the theory of demographic transition, population and economic change in Indonesia, and the likely impact of demographic changes on the future of Indonesia's economy. The more rapid demographic transition experienced in Indonesia may be used to stimulate even faster economic progress in the country.     

Fertility and the real exchange rate

Abstract .  We use a quinquennial data set covering 87 countries between 1975 and 2005 to investigate empirically the relationship between fertility and the real effective exchange rate. Theoretically, a country experiencing a decline in its fertility rate can be expected to experience a real depreciation. We test and confirm this hypothesis, controlling for a number of other potential determinants. We find a statistically significant and robust link between fertility and the exchange rate. Our point-estimate is that a decline in the fertility rate of one child per woman is associated with a depreciation of approximately 15% in the real effective exchange rate.     

WHY ARE FERTILITY RATES AND FEMALE EMPLOYMENT RATIOS POSITIVELY CORRELATED ACROSS O.E.C.D. COUNTRIES?*

We develop a quantitative theory of fertility and labor market participation decisions in order to investigate the role of labor market frictions in generating the observed positive association between fertility and employment among O.E.C.D. countries. We find that unemployment induces females to postpone and space births, which, in turn, reduces the total fertility rate. Moreover, differences in female labor outcomes across the United States and Spain can account for the low fertility rate in Spain relative to the United States. We also find that labor market frictions can generate a positive association between female employment ratios and fertility rates across economies.     

Can below-replacement fertility be desirable?

In this paper, we challenge the widespread notion that replacement level fertility is the most desirable level of fertility both for countries currently above and below this level. We discuss possible alternative criteria for choosing one fertility level over another. In accordance with earlier studies, we focus on age dependency as the sole criterion. But we do so by relaxing the strong assumption that all individuals of a given age are equal in terms of their economic contribution to society and introduce education as probably the most relevant observable source of population heterogeneity. Our criterion variable is the education-weighted support ratio and we perform thousands of alternative simulations for different constant levels of fertility, starting from empirically given populations. If education is assumed to present a cost at young age and results in higher productivity during working age, then for most countries the desirable long-term total fertility rate turns out to be well below replacement level.     

Jointly determined saving and fertility behaviour: theory,and estimates for Germany,Italy, UK and USA

This study uses new theories of capital accumulation and fertility in a comparative framework to test predictions with time-series data for Germany, Italy, the UK, and the US. The exogenous-fertility model is based on models of Barro and Becker. The endogenous-fertility models are based on models of Veall and Nishimura and Zhang. It is assumed that life cycle periods are youth, middle age, and old age. Several theoretical frameworks are tested with endogenous and exogenous fertility and altruism and nonaltruism. Data are obtained during 1950-90. Dependent variables are the total lifetime fertility rate and real per capita household savings. Explanatory variables include social security, the real social security deficit per capita, the real rate of interest, the real per capita disposable income, the average male real wage rate, the average female real wage rate, and the real child benefit rate. The explanatory variables are individually graphed to show differences by country over time. Findings suggest that fertility is endogenous in a nonaltruistic model. The only model not rejected by the data was the model in which fertility and intergenerational transfers were explained by nonaltruistic concerns. Fertility was positively affected by the male wage rate in all countries. Fertility was negatively affected by the female wage rate in all countries. Disposable income was insignificant in the UK and Germany and positive and significant in Italy and the US. The interest rate was significant in only 1 model. Child benefits had a positive and significant effect on fertility in the UK. In savings models, disposable income was significant and positive, and child benefits and wage rates were insignificant. Social security coverage had a negative effect on fertility and a positive effect on savings, except in Germany. Findings indicate that saving and fertility are jointly determined.     

Demographic links to savings in life cycle models: identification of issues for LDCs

The author considers the potential for a link between the recent pattern of demographic transition and intertemporal and inter-country variations in savings rates. Fertility, infant mortality, life expectancy, and levels of female and child labor force participation are among the various demographic factors which affect national savings rates through their effects upon age structure, age-specific individual savings behavior, and their general equilibrium effects upon interest rates, wage rates, and income distribution. The author establishes a simple discrete time life cycle model of savings, explains the issues related to age structure, and discusses the effect of age-specific savings functions, the general equilibrium effects of demographic factors, the effects of life expectancies and child mortalities, and the nature of social security coverages in less developed countries, as well as issues which are especially important for less developed countries. A new strategy for empirically evaluating demographic policies is proposed. That is, one can estimate the age profile of earnings, saving and fertility rates from household survey data. The life tables can then be used to compute the aggregate savings rate and population size. Any demographic policy which affects the fertility rate, life expectancy, and investment in the quality of children will change the aggregate saving and population growth rates. These two aggregate effects could be compared to evaluate demographic policies. The author stresses, however, that changes in different demographic factors will have different short-run and long-run effects upon the savings rate which will also depend upon whether such changes are transitory or permanent.     

不同生育率情形下养老保险筹资模式比较研究

理论研究普遍认为,基金制养老保险筹资模式优于现收现付制,但这几乎都是基于人均资本视角的判断。本文在外生和内生生育率两种情形下,从福利经济学视角分析基金制是否完全优于现收现付制。理论模型表明,在一定参数组合下,无论外生生育率还是内生生育率,都存在使现收现付制下社会福利高于基金制下社会福利的养老保险缴费率。模型的数值模拟显示,存在使现收现付制下社会福利更高的养老保险缴费率,且在外生生育率下（符合我国生育政策）现收现付制缴费率在12%左右社会福利最高,内生生育率下（符合发达国家生育政策）现收现付制缴费率在6%左右社会福利最高。前一数值与已有研究成果观点相近(我国社会统筹部分缴费率应下降到15%左右),后一数值与美国（62%）、日本（77%）等发达国家现收现付制养老保险缴费率相近。稳健性检验显示,只要参数赋值在合理范围内,数值模拟主要结论不变。本文为降低现行我国社会统筹部分养老保险缴费率提供了理论借鉴。     

Effect of public programs on family size,child education and health

"A bulk of public resources in developing countries is devoted to the subvention of population control and health investments. The effects of these programs have been evaluated in this study with household and community data from Bangladesh. The results suggest that subsidy on family planning and secondary school would be most effective in the achievement of harmonious goals of reducing fertility and mortality and fostering investments in child education."     

The demographic situation in the European countries of COMECON

The author describes the current unfavorable trends in natural population growth in the Socialist countries of Eastern Europe, excluding the USSR. Such trends include a reduction in fertility, an increase in male mortality, and an aging of the population. The author also examines variations in life expectancy be sex and country, age at marriage by country, and the provision of preschool facilities for young children. Recent pro-natalist measures adopted in various countries are also examined.     

The fertility effect of dependent tax exemptions: estimates for the United States

The effect of the dependent tax exemption on the fertility rate in the United States is estimated. The estimation is an improvement on previous work in that a non-linear specification is used to better capture the shape of the demand for children. It is found that the marginal effect of the dependent exemption decreases with the level of the exemption. This suggests that although subsidies for childbearing will increase fertility, it becomes increasingly difficult for countries to increase fertility through this type of scheme.     

A brief study of age specific birth proportions,Japan and Singapore

The suitability of age-specific birth proportions (ASBP), or percentage distribution of births, as a rough and ready index of fertility change was analyzed by establishing a theoretical framework for its limitations and uses. The discussion suggested that the utility of ASBP as an indicator of fertility change depends on the characteristics and behavior of the population being considered. The concept was then empirically applied to birth trends in Japan and Singapore for 2 different time periods. Analysis suggested that ASBP trends in Japan reflected changes in age-specific fertility rates relative to general fertility rate as well as trends in parity distribution. The Singapore analysis was more complicated, raising different issues. As very limited empirical work has been done on ASBPs, the utility of ASBPs as an indicator of fertility change cannot be definitely ascertained. It was suggested however that ASBP trends may be applicable in countries where the age distribution of fertile-aged women is fairly stable. More empirical research should be done on ASBP trends in other countries, the behavior of A matrix as discussed in this paper, and useful empirical relationship of ASBP with other fertility measures.