scholarly journals Fertility in Germany before and after the 2011 Census: Still no Trend Reversal in Sight

2016 ◽  
Vol 41 (1) ◽  
Author(s):  
Olga Pötzsch

The population projections by the German Federal Statistical Office show a likely decrease in the number of births in the 2020s. This development will be the result of a declining number of prospective mothers combined with an assumed continued low fertility rate. Given the available empirical findings prior to the 2011 census, there was no indication that a possible distinct rise in the fertility rate in the next decade would compensate for the declining number of potential mothers. However, the 2011 census led to revisions in the population size, age structure and consequently in relative fertility measures such as period and cohort fertility rates.The objective of this article is to quantify the effects of the 2011 census on these fertility statistics and to check the validity of previous findings for fertility trends on the census-adjusted data basis. A special focus is laid on analyses of the cohort fertility and the consequences of ever-later entry into motherhood on the completed fertility and on parity distribution. Using numerous findings, we will show that a continuous rise in the completed fertility in the coming two decades cannot be realised without a reversal of fertility behaviour. A greater increase in fertility from the age of 30 onwards would be necessary to offset the decrease in fertility for ages under 30 – a trend which intensified with cohort 1974 – and thereby stabilise the total cohort fertility rate at a relatively low level between 1.5 and 1.6 births per woman. A rise and subsequent stabilisation of the total cohort fertility rate at the level of at least 1.6 births per woman would, additionally, necessitate a trend reversal in the development of childlessness and distinct changes in birth timing.

Stanovnistvo ◽  
2016 ◽  
Vol 54 (2) ◽  
pp. 27-58 ◽  
Author(s):  
Vladimir Nikitovic

After the dissolution of the socialist Yugoslavia (SFRY) in 1991, the quality and availability of demographic and migration statistics in the region as a whole, and especially in some of its parts are deteriorated. In addition, census rounds are not being held regularly throughout the region as of 1991. Thus, producing population projections has become rather challenging in comparison to the period of SFRY. This paper made an effort in order to overcome obstacles in terms of historic data and jump-off projection values for the whole region in accordance with adjusted data from national records. Until 1991, population of the region had been increasing almost linearly. Although SFRY was characterized by significant sub-regional differences in terms of the beginning and the pace of demographic transition, the current total fertility rate throughout the region is below 2.1. The aim of the paper is to consider the long-term implications of low fertility and whether in this respect there would be a demographic homogenization of the region. For that purpose, we relied on the UN WPP2015 model used by the UN Population Division for producing its 2015 World Population Prospects. It enabled several important features from the viewpoint of the main tasks of the paper: the methodologically consistent datasets on main demographic indicators, probabilistic approach for modelling and forecasting fertility and mortality, the opportunity to adjust initial datasets for known issues on data quality (Serbia, Kosovo, Bosnia & Herzeg.), and ability to adjust data distribution according to the former administrative division of SFRY. The last one was of particular importance as it allowed us to take into account the well-known diversity of fertility patterns in Serbia (Vojvodina, Central Serbia and Kosovo), and to make a distinction in projection results between the sub-regions differed by the onset and tempo of fertility transition. The UN concept of post-transition recovery of total fertility rate is lying behind the hypotheses of future TFR. According to the model, Slovenia and Vojvodina has been already entered the post-transitional phase. Central Serbia and Macedonia are first to join them (as of 2020), followed by Croatia and Bosnia & Herzeg. (2025), and Montenegro (2030). However, the fertility transition in Kosovo could last until 2070. The greatest chance (median distribution of the simulated trajectories) is that TFR in the SFRY region will converge to the levels projected for Southern Europe (1.8) in 2100, except in Slovenia (1.89). Hypotheses on migration in deterministic manner were based on the ?migration cycle model? introduced by Fassmann and Reeger (2012), which assume that all of Europe will eventually experience the transition to net immigration. Since the strategic objectives of all governments in the region are consistent when it comes to joining the EU, it is taken as a pivotal condition for a hypothesis on the migration transition. The symbolic turning point in the transition process in the region (2035) implies that the whole region will become the part of the EU by then. Kosovo is assumed to be the only territory not able to achieve the net immigration during The greatest chances (median of the distribution) are that the population in the region of SFRY will be reduced by 16.9% between 2015 and 2055, which puts this region among the ones that are going to experience the strongest decrease (over 15%) in global terms - mainly countries of the former Eastern bloc and Japan. According to the median of prediction intervals, a sharp decline is expected in Vojvodina (31.7%), Cent. Serbia (27.2 %), Bosnia & Herzeg. (22.0%), and Croatia (18.9%), which is similar to the countries that were expected to experience the greatest population decrease in the world by 2050 - Bulgaria, Romania, Ukraine, and Moldova. The region reversal to the historic population maximum of 1990 seems to be not possible even in conditions of the above replacement fertility. A zone of depopulation emerged along the eastern rim of the EU, which, according to the UN model, is the most prominent depopulation zone in global terms. Prediction intervals indicate that by the mid-century, with the exception of Kosovo, only Slovenia has some chances (35%) to maintain the current population size. However, to return to its maximum population by 2100 some chance has only Slovenia (almost 30%), and only minimal Montenegro (8%), and Kosovo (5%). Old-age dependency ratio in the SFRY region is likely to double by the mid-century, while the prediction intervals suggest that even a return to the current unfavourable level is outside of the range of possible outcomes throughout the region. It is the most important long-term demographic implication of low fertility. Yet, that rise has its limits. Therefore, the next four decades will be the most challenging period of getting used to the new demographic reality, which in view of the modern concept of population policy (quality before quantity) is not necessarily bad. One of the conclusions is that the significant increase in the total fertility rate, i.e. up to and around the replacement level of 2.1, which current official projections (Cent. Serbia, Vojvodina, Montenegro, and Croatia) consider as the ultimate objective of population policy, is far beyond the possible outcomes.


2017 ◽  
Author(s):  
Serena Pattaro ◽  
Laura Vanderbloemen ◽  
Jonathan Minton

BACKGROUNDThe Human Fertility Database (HFD), and the related Human Fertility Collection (HFC), provide highly disaggregated data on age-specific fertility rates for 45 countries. These sources provide a wealth of opportunity for learning about the development of different pathways of transition to low fertility both within and between countries and geographic regions. OBJECTIVEThe aim of this paper is to use composite fertility lattice plots, which combine information from different visualisation methods of the Lexis surface, such as heat maps and shaded contour plots, to explore changes in age-specific fertility rates and derived cumulative cohort fertility rates across countries and geographic regions. METHODSStandard shaded contour maps use both shade and contour to represent the same variable. In our plots we instead use colour/shade to indicate age-specific fertility rates, and a series of distinct contour lines to indicate the cumulative fertility rates reached by different cohorts at different ages. These figures are then ranked by cumulative cohort fertility rates in the last commonly observed period, and colour coded according to geographic region. RESULTSBy looking first at the thick solid contour lines from left to right in each population figure, we can see at which age different cohorts either reached or last reached replacement fertility levels. Other contours help understand the degree of shortfall below replacement levels for different cohorts. It appears that, once countries have fallen below a replacement fertility level, they tend to not return to it. Exceptions are Norway and the USA, which saw rising fertility rates for cohorts born after 1950s and late 1960s, respectively. The age-specific fertility trends, as well as broader political and socioeconomic conditions in these countries, are very different, suggesting different paths by which replacement fertility rates can be achieved.


2012 ◽  
Vol 36 (2-3) ◽  
Author(s):  
Tomáš Sobotka

This article reviews major similarities and differences in period and cohort fertility in Austria, Germany and Switzerland. These three countries share a long history of low fertility and currently belong to countries with the lowest cohort fertility rates globally. The study highlights persistent differences in fertility and family patterns between Eastern and Western Germany, which are often rooted in pre-unification contrasts and can be partly linked to continuing differences in institutional set-up and norms on organised childcare, living arrangements and maternal employment. The remarkable stability in period fertility over the last 30 years (with the exception of Eastern Germany) is illustrated with various indicators and discussed on the backdrop of recent reversals in European fertility trends. This stability in fertility levels contrasts with the long-term shift in childbearing towards less stable living arrangements (especially in Eastern Germany), including a high share of single mothers. The study also discusses a relatively small but persistent negative impact of the ongoing shift towards a late timing of childbearing on period fertility in the region. It highlights the educational gradient in fertility, which can be largely attributed to elevated childlessness rates among women with a higher educational degree. Migrant women have on average higher fertility rates than “native-born” women, but their net positive impact on aggregate fertility rates has diminished over time and has become negligible in Germany. A concluding discussion suggests that Austria, Germany and Switzerland share a common pattern of low fertility that sets these countries apart from other regions in Europe.


2021 ◽  
Vol 13 (1) ◽  
pp. 401
Author(s):  
Woong Bee Choi ◽  
Dongyeol Lee ◽  
Woo Chang Kim

The Korean National Pension Service (NPS) is a partially funded and defined-benefit system. Although the accumulated Fund of the NPS has been increased gradually, this large fund is concerned about depletion in the near future due to the unprecedented aging population and the low fertility rate. In this study, we have developed an asset-liability management (ALM) model that endogenizes variables which were regarded as being exogenous by including them in investable assets. We present the multistage stochastic programming (MSP) formulation incorporating the population structure as a variable that is new to ALM. The optimal portfolio encompassing the investment in raising the fertility rate is obtained. Extending the scope of ALM to social investment is a new approach that has not been attempted in other ALM studies. We demonstrate that socially driven investments can also be a good investment asset in which the NPS should consider to invest.


2019 ◽  
Vol 64 (01) ◽  
pp. 175-190
Author(s):  
JR-TSUNG HUANG ◽  
JIUN-NAN PAN ◽  
MING-LEI CHANG ◽  
SHIH-YI YOU

Since the economic consequences of a low fertility rate, such as a change in consumption patterns, might affect the path of economic growth, this study investigates how the relationship between the low fertility rate and consumption behavior in Taiwan has changed over time. Using county-level panel data from 1995 to 2014 to examine the impact of the low fertility rate on the consumption behavior of households in Taiwan, the major finding of this study is that a low fertility rate will change the behavior and the composition of consumption. A low fertility rate will increase the share of the total consumption expenditure in a household’s disposable income, in particular, in relation to the consumption categories of food, health care, education, and transportation and communication, but will decrease the share of expenditure on clothing in the household’s disposable income.


Author(s):  
Jung-ok Ha

South Korea's total fertility rate (TFR) in 2005 was 1.08, the lowest in the world. The government launched the National Support Program for Infertile Couples (“the Program”) in 2006 which expenditures for diverse assisted reproductive treatments are subsidized. This chapter seeks to critique three aspects of the Program. First, the Program is a population policy that has not kept up with changes in family values and practices. Second, the Program’s very implementation has created demand, ‘those diagnosed as infertile’ have become ‘infertile members of the population’. Lastly, the Program has resulted in a meaningful increase in the number of in vitro fertilization treatments, and this increase has negatively impacted the health of women and children. Reproduction has always been a field for political struggle, and political imagination-created reproduction is revealed most strikingly when reproduction becomes a “population problem”. South Korea’s National Family Planning Project was brought by the Park Chung-hee government, which emphasized the value of the “modern family,” specifically, “Modernization of the Fatherland,” as part of economic development in the 1970s. The low fertility rate that South Korea is now facing is considered a national crisis and the Program represents the government’s will to solve the crisis through medical technologies. However, the bodies of women are still considered objects in TFR statistics, much as they were in the 1970s. This has led to a situation in which the health and even the lives of women are being endangered once again


Animals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1065
Author(s):  
Valentina Longobardi ◽  
Michal A. Kosior ◽  
Nunzia Pagano ◽  
Gerardo Fatone ◽  
Alessia Staropoli ◽  
...  

Semen cryopreservation determines several sperm damages, including the loss of fertility-associated proteins. The purpose of the study was to compare the metabolite contents in bovine sperm and seminal plasma before and after cryopreservation, and between high- and low-fertility bulls in vitro. Forty-eight ejaculates, collected from eight bulls (six per bull), were analyzed by liquid chromatography–mass spectrometry. Cryopreservation resulted in an over-expression of lysophosphatidylcholine (0:0/18:2(9Z,12Z)) in seminal plasma. In addition, higher levels of glycine betaine and pyro-l-glutaminyl-l-glutamine were observed in cryopreserved compared to fresh spermatozoa. The fresh seminal plasma of high-fertility bulls showed an over-expression of l-acetylcarnitine, glycerol tripropanoate, 2,3-diacetoxypropyl stearate and glycerophosphocholine, and an under-expression of lysophosphatidylcholine and butyrylcarnitine, compared to low-fertility bulls. Higher levels of glycerophosphocholine and lysophosphatidylcholine (16:0/0:0) were recorded in fresh spermatozoa from high-fertility bulls. In high-fertility bulls, a greater content of glycerophosphocholine and lower levels of butyrylcarnitine, glycine betaine and l-carnitine were found in cryopreserved seminal plasma, and lower levels of glycine betaine were detected in cryopreserved spermatozoa. In conclusion, cryopreservation affects bovine semen metabolome at both plasmatic and cellular compartments, and metabolic profile differs between high- and low-fertility bulls.


2020 ◽  
Author(s):  
Yijia Zhang ◽  
Zhicong Yin ◽  
Huijun Wang

Abstract. North China experiences severe haze pollution in early winter, resulting in many premature deaths and considerable economic losses. The number of haze days in early winter in North China (HDNC) increased rapidly after 2010 but declined slowly before 2010, reflecting a trend reversal. Global warming and emissions were two fundamental drivers of the long-term increasing trend of haze, but no studies have focused on this trend reversal. The autumn SST in the Pacific and Atlantic, Eurasian snow cover and central Siberian soil moisture, which exhibited completely opposite trends before and after 2010, were proven to stimulate identical trends of meteorological conditions related to haze pollution in North China. Numerical experiments with a fixed emission level confirmed the physical relationships between the climate drivers and HDNC during both decreasing and increasing periods. These external drivers induced a larger decreasing trend of HDNC than the observations, and combined with the persistently increasing trend of anthropogenic emissions, resulted in a realistic slowly decreasing trend. However, after 2010, the increasing trends driven by these climate divers and human emissions jointly led to a rapid increase in HDNC.


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