Demographic Transition and Fertility Rebound in Economic Development*

Recent evidence on the “fertility rebound” offers credence to the idea that, from the onset of early industrialization to the present day, the dynamics of fertility can be represented by an N-shaped curve. An overlapping generations model with parental investment in human capital can account for these observed movements in fertility rates during the different stages of demographic change. A demographic transition with declining fertility emerges at the intermediate stage, when parents engage on a child quantity–quality trade-off. At later stages, however, the process of economic growth generates sufficient resources so that households can rear more children while still providing the desirable amount of education investment per child.     

Accounting for Fertility Decline During the Transition to Growth

In every developed country, the economic transition from pre-industrial stagnation to modern growth was accompanied by a demographic transition from high to low fertility. Even though the overall pattern is repeated, there are large cross-country variations in the timing and speed of the demographic transition. What accounts for falling fertility during the transition to growth? To answer this question, this paper develops a unified growth model that delivers a transition from stagnation to growth, accompanied by declining fertility. The model is used to determine whether government policies that affect the opportunity cost of education can account for cross-country variations in fertility decline. Among the policies considered, education subsidies are found to have only minor effects, while accounting for child labor regulation is crucial. Apart from influencing fertility, the policies also determine the evolution of the income distribution in the course of development.     

Human capital and the quantity–quality trade-off during the demographic transition

This paper provides an empirical test of the child quantity–quality (QQ) trade-off predicted by unified growth theory. Using individual census returns from the 1911 Irish census, we examine whether children who attended school were from smaller families—as predicted by a standard QQ model. To measure causal effects, we use a selection of models robust to endogeneity concerns which we validate for this application using an Empirical Monte Carlo analysis. Our results show that a child remaining in school between the ages of 14 and 16 caused up to a 27 % reduction in fertility. Our results are robust to alternative estimation techniques with different modeling assumptions, sample selection, and alternative definitions of fertility. These findings highlight the importance of the demographic transition as a mechanism which underpinned the expansion in human capital witnessed in Western economies during the twentieth century.     

The past and future of knowledge-based growth

This paper consolidates two previously disconnected literatures. It integrates R&D-based innovations into a unified growth framework with micro-founded fertility and schooling behavior. The theory suggests a refined view on the human factor in productivity growth. It helps to explain the historical emergence of R&D-based growth and the subsequent emergence of mass education and the demographic transition. The model predicts that the erstwhile positive correlation between population growth and innovative activity turns negative during economic development. This “population-productivity reversal” explains why innovative modern economies are usually characterized by low or negative population growth. Because innovations in modern economies are based on the education of the workforce, the medium-run prospects for future economic growth—when fertility is going to be below replacement level in virtually all developed countries—are better than suggested by conventional R&D-based growth theories.     

The long-run determinants of fertility: one century of demographic change 1900–1999

We examine the long-run relationship between fertility, mortality, and income using panel cointegration techniques and the available data for the last century. Our main result is that mortality changes and growth of income contributed to the fertility transition. The fertility reduction triggered by falling mortality, however, is not enough to overcompensate the positive effect of falling mortality on population growth. This means that growth of income per capita is essential to explain the observed secular decline of population growth. These results are robust to alternative estimation methods, potential outliers, sample selection, different measures of mortality, the sample period, the inclusion of education as an explanatory variable, and the use of different data sets. In addition, our causality tests suggest that fertility changes are both cause and consequence of economic development.     

发达国家农业可持续增长的经验及启示——人口转型与技术进步

完成人口转型的发达国家中,土地、劳动力等传统农业生产要素已不再是农业增长的主要影响因素。而实际上人口转型已成为影响农业技术进步的决定性因素。文章基于1980-2000年14个已完成人口转型的发达国家面板数据的实证分析,通过农业技术与农业增长、人口转型与技术进步两个模型的检验结果,验证了发达国家农业人口数量的减少、受教育水平的提高对技术进步具有正向影响,通过对发达国家农业可持续增长的经验分析,得出中国农业可持续增长的关键为重视农村教育、加快农业人口转型以及提高农业科技投入。同时给出中国农业可持续增长的政策建议:利用教育投资的外溢效应促进农业人口转型,借助科技投入步入高效益农业可持续增长轨道。     

Primary education and fertility rates

Unified growth theory advances that the transition from a Malthusian regime to sustained economic growth is characterized by technological progress and, amongst other things, by an increase in demand for human capital which in turn creates incentives for lower fertility rates. Bearing that in mind, I ask the question: has southern Africa escaped the Malthusian stagnation? Specifically, I study whether primary school completion rates have played any role in total fertility rates in all countries of the Southern African Development Community (SADC) during the 1980–2009 period. Contrary to conventional wisdom, the results, based on dynamic panel time‐series methods, suggest that primary education is associated with lower fertility in the SADC, or that the community is already trading‐off quantity for quality of children. Although I do not claim causality, overall the results are significant because, in accordance with unified growth theory, they suggest that the SADC is experiencing its own transition from the Malthusian stagnation epoch into sustained growth, or that the SADC is going through its own post‐Malthusian regime.     

CONTRACEPTION AND DEVELOPMENT: A UNIFIED GROWTH THEORY

This study investigates the interaction of the use of modern contraceptives, fertility, education, and long‐run growth. It develops an economic model that takes into account that sexual intercourse is utility enhancing and that birth control by modern contraceptives is more efficient but more costly than traditional methods. The study shows how a traditional economy, in which modern contraceptives are not used, gradually converges toward a high growth regime, in which modern contraceptives are used. Lower prices or higher efficacy of contraceptives are conducive to an earlier onset of the fertility transition and a quicker takeoff to modern growth.     

Fertility and climate change*

A quarter of the total increase in emissions is attributable to the growth of emissions per capita, whereas three-quarters are due to population growth. This evidence notwithstanding, demography in climate–economy models typically follows exogenous trends. We develop a climate–economy integrated model with endogenous fertility through a quality–quantity trade-off. The decentralization of the social optimum requires two complementary instruments: a carbon pricing policy and family planning interventions. Global population increases and reaches a peak, depending on the scenario, between 11.6 billion in the social optimum and 14.6 billion if only carbon prices are implemented. Fertility costs (i.e., the net present value of the climate-related costs per child) are in 2020 estimated to be about 22,000 euros in the “social optimum” scenario, and about 88,000 euros in the “second-best with fertility taxes” scenario. Carbon pricing tends to have a rebound effect as it increases population growth leading to higher future emissions. Our results highlight the effects of fertility choices and global population on climate change, quantifying the cost of neglecting the interaction.     

Endogenous Fertility, Income Distribution, and Growth

This article analyzes the interaction between growth and fertility via income distribution in a model in which fertility decisions are motivated by old-age support. It provides an explanation of the demographic transition of an economy from a stage of increasing fertility and low growth to a stage of low fertility, high human capital investments, and high growth.     

Does female schooling reduce fertility? Evidence from Nigeria

The literature generally points to a negative relationship between female education and fertility. Citing this pattern, policymakers have advocated educating girls and young women as a means to reduce population growth and foster sustained economic and social welfare in developing countries. This paper tests whether the relationship between fertility and education is indeed causal by investigating the introduction of universal primary education in Nigeria. Exploiting differences in program exposure by region and age, the paper presents reduced form and instrumental variables estimates of the impact of female education on fertility. The analysis suggests that increasing female education by one year reduces early fertility by 0.26 births.     

The growth–distribution nexus in a mixed regime of education with a status motive: On the macroeconomics of the welfare state

We develop a growth model with human capital accumulation to study the effects of status-driven motivation on individuals' choice between public or private education. This choice interacts with and exacerbates the effects of status, with implications for growth and distribution. More motivated individuals work harder and choose private education. In a majority voting/median voter setup, individuals choose a public education size for which there is no trade-off between long-term growth and inequality. We also highlight the conflict of interest between individuals with respect to the size of the public education sector and the tax rate that supports it. We thus highlight important interactions between the macroeconomy, social attitudes and educational institutions and derive results of interest in a variety contexts. We end by drawing policy conclusions among which, the idea that in democracies, higher growth and lower inequality are mutually compatible when the government promotes public education.     

The role of human capital and innovation in economic development: evidence from post-Malthusian Prussia

The effect of human capital on growth involves multiple channels. On the one hand, an increase in human capital directly affects economic growth by enhancing labor productivity in production. On the other hand, human capital is an important input into R&D and therefore increases labor productivity indirectly by accelerating technological change. In addition, different types of human capital such as basic and higher education or training-on-the-job might play different roles in both production and innovation activities. We merge individual data on valuable patents granted in Prussia in the late nineteenth-century with county-level data on literacy, craftsmanship, secondary schooling, and income tax revenues to explore the complex relationship between various types of human capital, innovation, and income. We find that the Second Industrial Revolution can be seen as a transition period when it comes to the role of human capital. As in the preceding First Industrial Revolution, “useful knowledge” embodied in master craftsmen was related to innovation, especially of independent inventors. As in the subsequent twentieth century, the quality of basic education was associated with both workers’ productivity and firms’ R&D processes. In a final step, we show that literacy had also a negative effect on fertility which increased with innovation. In general, our findings support the notion that the accumulation of basic human capital was crucial for the transition to modern economic growth.     

Agricultural Productivity Growth and Escape from the Malthusian Trap

Industrialization allowed the industrialized world of today to escape from the Malthusian regime characterized by low economic and population growth and to enter the post-Malthusian regime of high economic and population growth. To explain the transition between these regimes, we construct a growth model with two consumption goods (an agricultural and a manufacturing good), endogenous fertility, and endogenous technological progress in the manufacturing sector. We show that with an exogenous increase in the growth of agricultural productivity our model is able to replicate stylized facts of the British industrial revolution. The paper concludes by illustrating that our proposed model framework can be extended to include the demographic transition, i.e., a regime in which economic growth is associated with falling fertility.     

Growth,fertility and human capital: A survey

This paper surveys recent work on endogenous fertility and endogenous growth. These models provide the building blocks for a theory of development. They are capable of explaining income and fertility differentials between rich and poor countries. They can produce switching behavior, countries that transform themselves from no growth economies into high growth economies. The fertility and growth effects of social security programs are also examined. Finally models with increasing returns to population are presented. They are capable of reproducing very long term relationships between human capital, fertility and economic growth.     

我国人口的社会结构失衡:理论机制与经验事实

随着生育率水平的持续下降,我国不仅面临人口数量增长的困境,而且也发生了严重的人口社会结构失衡.文章基于教育资源稀释理论,从理论和经验两个方面研究了教育与生育率之间的相互作用以及由此所决定的人口发展规律,从而论证了人口社会结构失衡现象及其形成机制.研究表明:(1)教育与生育率之间的相互作用机制,一方面可以使生育率水平持续上升,导致人口发展进入高生育陷阱,另一方面也能够使生育率水平不断下降,让人口发展滑入低生育陷阱,由此形成了人口发展的"Z"形变化规律,即在中等教育水平上教育与生育率之间显著负相关,而在较高和较低的教育水平上两者并无明显关联;(2)由于我国的教育发展存在明显的城乡差距、地区差距和民族差距,那么在"Z"形人口发展规律的影响下,所有居民必然会逐步分化为两类,分别向生育率的高低两端集聚,从而就产生了人口的城乡结构、地区结构、民族结构和素质结构的失衡.进一步地,文章基于全国人口普查县级数据,使用工具变量法和Hausman-Taylor估计方法,验证了这种"Z"形人口发展规律及其所决定的人口社会结构失衡.文章不仅可以丰富当前的人口结构研究,而且对我国的人口和教育改革具有重要的启示.     

Generational conflict and education politics: Implications for growth and welfare

This study considers the politics of public education and its impact on economic growth and welfare across generations. We employ probabilistic voting to demonstrate the generational conflict regarding taxes and spending and show that aging shifts the tax burden from the retired to the working generation, reduces public education spending, and ultimately slows economic growth. We subsequently consider a legal constraint that aims to boost education spending: a spending floor for education. This constraint stimulates economic growth but creates a trade-off between current and future generations’ welfare. Finally, the quantitative implications of our results are explored by calibrating the model to the Japanese economy.     

The effects of workplace learning in higher education on employment and match quality: is there an early-career trade-off?

We investigate whether the choice for a higher education program with a substantial workplace learning component entails an early-career trade-off between on the one hand higher employment chances and better initial matches (when opting for a program with workplace learning) and on the other hand a lower risk of bad match persistence (when opting for a program without workplace learning). To this end, we rely on longitudinal data of Belgian graduates that track their careers up until the age of 29. We model the program choice, the transition to a good match and the preceding transition to a bad match simultaneously. To account for non-random selection into programs and into bad matches, the Timing of Events method is combined with an exclusion restriction. After accounting for observed and unobserved heterogeneity, we do not find evidence for a trade-off. This result contributes to the debate about the efficiency of vocationalizing tertiary education programs through the implementation of workplace learning.     

Federalism,Fertility, and Growth

This paper analyses the effect of federalism on fertility and growth. In a model with human capital accumulation and endogenous fertility, two regimes of education finance are compared: central and local. I find that local education finance yields higher growth at the price of increased inequality. The effect of federalism on total and differential fertility rates depends on the elasticity of substitution between children and consumption. The paper also empirically examines the relationship between fertility rates and fiscal decentralisation on a panel of OECD countries and finds a weak negative effect of decentralisation on total and differential (poor minus rich) fertility.     

COMPLEMENTS VERSUS SUBSTITUTES AND TRENDS IN FERTILITY CHOICE IN DYNASTIC MODELS*

Demographers emphasize decreased mortality and “economic development” as the main contributors generating the demographic transition. Contrary to previous findings, we show that simple dynastic models à la Barro–Becker can reproduce observed changes in fertility in response to decreased mortality and increased productivity growth if the intertemporal elasticity of substitution is low enough. We show that this is largely due to number and welfare of children being substitutes in the utility of parents in this case. We find that with an IES of one‐third, model predictions of changes in fertility amount to two‐thirds of those observed in U.S. data since 1800.