Endogenous fertility,mortality and growth

Economic and demographic outcomes are determined jointly in a choice-theoretic model of fertility, mortality and capital accumulation. There is an endogenous population of reproductive agents who belong to dynastic families of overlapping generations connected through altruism. In addition to choosing savings and births, parents may reduce (infant) deaths by incurring expenditures on health-care which is also provided by the government. A generalised production technology accounts for long-run endogenous growth with short-run transitional dynamics. The analysis yields testable time series and cross-section implications which accord with the empirical evidence on the relationship between demography and development. Received: 22 April 1996 / Accepted: 2 April 1998     

The uncertain lifetime and the timing of human capital investment

I examine the effects of mortality decline on fertility and human capital investment decision of parents taking into account the uncertainty about child survival. I propose a model, where parents decide on their fertility before the uncertainty is realized, but they choose to invest only in human capital of their surviving children. The model implies a positive relationship between mortality and fertility and a negative one between mortality and educational investment. It has been argued elsewhere that as, in reality, most of the mortality decline occurred in infancy, it should not affect the human capital investment decision, which comes later in life. Thus, increased survival chances should not promote growth by raising the human capital investment. This paper argues the contrary and proposes a mechanism where mortality decline at any age before the teen years can promote growth by raising human capital investment regardless of the timing of the educational investment.      

“Backslanted X” fertility dynamics and macroeconomics

A large number of pairs of countries exhibit a dynamic pattern in which: (1) Fertility in both countries declines across time; (2) initially, one country has a higher fertility and a lower per-capita income than the other; and (3) in time, as per-capita incomes converge, fertility rates in the poorer country become lower than in the richer one. This article documents the prevalence of such dynamics and offers a theoretical model in which these dynamics emerge endogenously. Assuming differences in the degree of utility substitution between consumption and rearing children across countries generates all three components of these dynamics.

On human capital formation with exit options: comment and new results

Katz and Rapoport (2005) conclude that with linear production technology and the possibility of unilateral migration, region-specific shocks may increase the average level of education. Previously, Poutvaara (2000) derived a corresponding result with Cobb–Douglas technology and migration which may go in both directions. This paper extends the analysis to all strictly concave production functions, and shows how the effect of the region-specific shocks depends on the shape of the production function. Also, the paper establishes when the presence of exit option increases and when it reduces investment in education. The results are robust to allowing for migration costs.     

Free education, fertility and human capital accumulation

This article analyzes the effect of free public education on fertility, private educational investments, and human capital accumulation at different stages of economic development. The model shows that, when fertility is endogenous, parental human capital levels are crucial for determining the effect of free education. At early stages of development when parental human capital is low, free access to basic education may provide the only chance to leave poverty. In contrast, at advanced stages of development when parental human capital is high, the availability of free education crowds out private educational investments, stimulates fertility, and may impede growth.     

The impact of infant and child death on subsequent fertility in Ethiopia

This paper uses hazard regression models to assess the impact of experienced infant and child mortality on the risk of subsequent conceptions in Ethiopia. The purpose of this paper is to test for the presence of a fertility response to an infant or child death, net of the effects of truncated breastfeeding on fecundity. Using retrospective birth history data from a national survey in Ethiopia, we find a significantly higher risk of a conception in the months following the death of an index child, even after controlling for postpartum amenorrhoea and breastfeeding status. The fertility response is strongest after the death of the fourth or fifth child, which is when most women in Ethiopia are at or near their desired family size. However, we find no evidence of a fertility response to the death of a nonindex child. We attribute the higher risk of a conception following an index child’s death to the intentional efforts of couples to reduce the waiting time to a next birth and thereby replace the deceased child. However, absent evidence of replacement fertility in response to the death of older nonindex children, we interpret the response to the death of an index child as an emotional response to child loss rather than a conscious strategy to meet a fertility target.

Fertility decline in a US population favoring large families: A hazard-model analysis of the effect of sib death on Amish fertility

This paper uses proportional hazards techniques and population data from a directory of the Old Order Amish of the Lancaster, PA settlement. It examines the effect of death of the immediately prior sibling on the risk of childbearing for up to 11 children. Prior research typically has pooled data for maternal cohorts. In contrast, separate models are estimated for each maternal cohort. The results are based on all reported first marriages of Amish women born between 1884–1973 (N = 4066). Hazard models run separately for children of each birth order reveal that net of maternal age and length of the prior birth interval (and other statistical and design controls), the death of the prior sib significantly increases the risk of a subsequent birth for the lower birth orders. Separate models by maternal cohort show that sib death increases the risk primarily for later cohorts. The pattern of effects from child mortality and other variables suggests changes in fertility behavior among the Amish, who have strong, traditional norms opposing contraception and favoring large families.     

Production and consumption externalities of human capital: an empirical study for Italy

The estimation of the effect of local human capital on wages only might not identify properly human capital spillovers. Appropriate identification requires considering the joint effect of local human capital on both wages and rents. Empirically, we study the effects of local human capital on household-level rents and individual-level wages for a sample of Italian local labour markets. Our results show a positive and robust effect of local human capital on rents, supporting the idea that human capital generates positive externalities at the local level. Our results also suggest that consumption and production externalities have a similar impact on wages.

Demographic pressure,economic development,and social engineering: An assessment of fertility declines in the second half of the twentieth century

Population Research and Policy Review - Concerns over the prospects of explosive demographic growth led to concerted efforts to engineer fertility reductions in the developing world, while skeptics...     

西方人力资本理论对我国经济增长的启示

西方人力资本理论是发展经济学的一个最有代表性的成果。理论和实践都证明了在一国的经济增长和发展中人力资本是最重要的推动因素 ,是人力资本的缺乏而不是物质资本的缺乏阻碍了贫国赶上富国的进程。只有建立在人力资本增长基础上的经济增长才是有保证的经济增长。     

Effects of public education and social security on fertility

Introducing a fertility decision and child care cost into an overlapping generations model with public education and social security, we examine the effects of these public policies on fertility. We show that an increase in income tax, which finances social security benefits and public investment in education, increases fertility. On the other hand, with a constant tax rate, a change in the allocation from social security benefits to public investment in education decreases fertility and, with a constant social security tax, the effect of education tax on fertility is neutral.      

R&D, human capital, fertility, and growth

This paper analyzes how the decisions of individuals to have children and acquire skills affect long-term growth. We investigate a model in which technical progress, human capital, and population arise endogenously. In such an economy, the presence of distortions (such as monopolistic competition, knowledge spillover, and duplication effects) leads the decentralized long-run growth to be either insufficient or excessive. We show that this result depends on the relative contribution of population and human capital in the determination of long-term growth, i.e., on how the distortions affect the trade-off between the quantity of offsprings and the quality of the family members.     

Implications of economic reform and spatial mobility for fertility in Vietnam

Vietnam has registered a dramatic decline in fertility during the last decades. While the causes of such a sustained decline are still not well documented, many observers believe that government policies adopted in the 1980s have contributed to lower fertility. This article focuses on the implications of the Doi Moi program of market reforms on fertility, taking into account the influences of migration and population policy. The analysis is based on a sequential logit model of birth histories of ever married women interviewed in Vietnam in 1997. The results show a substantial decline in fertility since the Doi Moi program was introduced. The disruptive effects of migration are less pronounced, although migrants generally exhibit lower childbearingrates, and a somewhat different pattern of parity progression. We argue that the economic reforms of 1986, and the two-child policy initiated two years later, have reinforcedVietnamese women's desire for smaller families.     

儿童照料与二孩生育意愿——来自上海的证据

本文围绕一项针对上海市育龄女性的生育意愿调查,分别使用二分和有序Logit方法分析儿童照顾对上海市育龄女性的二孩生育意愿的影响。研究发现当育龄女性能够从家庭内和社会中获得更多孩子照料的时间支持时,她们有更高的二孩生育意愿,也会伴有更明确的二孩生育规划;双独家庭能够从父辈获得更多的经济、时间上的帮助,因此他们要比单独家庭和双非家庭更愿意再生一个孩子;居住于上海市城区的女性从某种程度上更易获得孩子的照料资源,有更多的优质教育资源可供选择,因此她们的二孩生育意愿高于居住于郊区的女性。此外,本文通过是否采用了避孕措施对二孩生育的意愿程度做了进一步区分,结果发现当第一个孩子主要是由孩子父母承担照料工作的时候,女性存在二孩生育意愿的程度是最低的,祖辈照料对二孩生育意愿程度的积极影响也明显低于社会性照料,此现象在上海市户籍的女性中体现尤为明显。最后为纠正自选择偏差问题,本文使用倾向值匹配方法(PSM)进一步验证了与首孩性别相比,首孩的抚养成本与接受照料情况显然对二孩生育意愿的影响程度更大。因此,本文认为加大公共托育服务的供给、为育龄女性提供高质量的0-3岁婴幼儿社会照料支持是提高二孩生育意愿的最有效...     

Mortality, fertility, education and capital accumulation in a simple OLG economy

We develop a simple OLG model to analytically show that aging leads to increased educational efforts through a general equilibrium effect. The mechanism is that scarcity of raw labor increases the return of human relative to physical capital. While a reduction in the birth rate is shown to unambiguously increase educational efforts, increases in the survival rate have ambiguous effects. Falling birth rates also increase capital per worker, but the effects of rising survival rates are again ambiguous. We conclude that our model is a useful laboratory to highlight potentially offsetting effects in models with endogenous education and overlapping generations.     

人口因素与经济发展的灰色关联（GRA）分析——以西北地区为例

在农业、医学、经济及社会各领域内,灰色关联分析(GRA)有着广泛的应用,本文建立了区域经济增长与人口因素及物资资本投入的GRA分析模型,并以西北地区为例具体测算了人口及物质诸因素与该地区经济增长的关联度。     

An Empirical Analysis of Social Capital and Economic Growth in Europe (1980–2000)

It is of paramount concern for economists to uncover the factors that determine economic growth and social development. In recent years a new field of investigation has come to the fore in which social capital is analysed in order to determine its effect on economic growth. Along these lines the work presented here examines the relationships that exist between human and social capital and economic growth. The applied part of the analysis is performed using a panel data model for 14 economically developed countries (OEDC) and by using a series of chronological periods that fall within the 1980–2000 time-frame. A revision of the social capital literature was first carried out and the potential links between social and human capital discussed. The study begins by assessing the way in which the two types of capital interact, how they should be measured and the best way of quantifying their importance within applied models. The econometric model uses panel data, and this enables the analysis to obtain robust results with respect to the role of different types of capital i.e. human physical and social.     

Legalization and human capital accumulation

This paper presents new evidence regarding the effects of legalization on the training of immigrants who were granted legal status through the US Immigration Reform and Control Act (IRCA) of 1986. Our findings point to a large increase in the immigrants’ incidence of training relative to comparable groups of natives following legalization. While training gains are higher for males, wage gains are higher for females. We also show that an important part of these changes in labor market outcomes occurs through occupation changes by newly legalized immigrants.     

Child mortality and fertility: public vs private education

How does the effect of child mortality reductions on fertility and education vary across educational systems? To answer this question, we develop an overlapping-generations model where altruistic parents care about both the number and human capital of their surviving children. We find that, under a private education system, if income is low initially, the economy converges to a Malthusian stagnation steady state. For a high level of initial income, the economy reaches a growth path in which children’s education rises and fertility decreases with income. In the growth regime under private education, exogenous shocks that lower child mortality are detrimental for growth: fertility increases and education declines. In contrast, under a public education system, the stagnation steady state does not exist, and health improvement shocks are no longer detrimental for growth. We therefore offer a new rationale for the introduction of public education.     

Family and school capital explaining regional variation in math and reading achievement

We know that inequality varies by region and also begins early in life. Bivariate data suggest that 5–14-year-old children in the 1994 National Longitudinal Survey of Youth (NLSY) score differently in reading and mathematics achievement depending on their region, with children in the South and West scoring lower. We combine literatures on regional bases of inequality and family and school capital to generate hypotheses explaining these differences. Analyses of covariance provide supportive evidence. For both outcomes among boys, the variation is explained by additive models including family and child social and human capital, although selected aspects of school capital are also influential; these models also explain math achievement among girls. A model including both additive and interactive effects explains regional differences in reading achievement for girls. We interpret these findings in terms of their implications for studying inequality in child achievement as well as for emphasizing the importance of regional inequality, particularly beyond the South versus non-South distinction.