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  Subjects -> MATHEMATICS (Total: 966 journals)
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    - MATHEMATICS (711 journals)
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MATHEMATICS (711 journals)                  1 2 3 4 | Last

Showing 1 - 200 of 538 Journals sorted alphabetically
Abakós     Open Access   (Followers: 4)
Abhandlungen aus dem Mathematischen Seminar der Universitat Hamburg     Hybrid Journal   (Followers: 4)
Academic Voices : A Multidisciplinary Journal     Open Access   (Followers: 2)
Accounting Perspectives     Full-text available via subscription   (Followers: 7)
ACM Transactions on Algorithms (TALG)     Hybrid Journal   (Followers: 15)
ACM Transactions on Computational Logic (TOCL)     Hybrid Journal   (Followers: 3)
ACM Transactions on Mathematical Software (TOMS)     Hybrid Journal   (Followers: 6)
ACS Applied Materials & Interfaces     Full-text available via subscription   (Followers: 29)
Acta Applicandae Mathematicae     Hybrid Journal   (Followers: 1)
Acta Mathematica     Hybrid Journal   (Followers: 12)
Acta Mathematica Hungarica     Hybrid Journal   (Followers: 2)
Acta Mathematica Scientia     Full-text available via subscription   (Followers: 5)
Acta Mathematica Sinica, English Series     Hybrid Journal   (Followers: 6)
Acta Mathematica Vietnamica     Hybrid Journal  
Acta Mathematicae Applicatae Sinica, English Series     Hybrid Journal  
Advanced Science Letters     Full-text available via subscription   (Followers: 10)
Advances in Applied Clifford Algebras     Hybrid Journal   (Followers: 4)
Advances in Calculus of Variations     Hybrid Journal   (Followers: 2)
Advances in Catalysis     Full-text available via subscription   (Followers: 5)
Advances in Complex Systems     Hybrid Journal   (Followers: 7)
Advances in Computational Mathematics     Hybrid Journal   (Followers: 19)
Advances in Decision Sciences     Open Access   (Followers: 3)
Advances in Difference Equations     Open Access   (Followers: 3)
Advances in Fixed Point Theory     Open Access   (Followers: 5)
Advances in Geosciences (ADGEO)     Open Access   (Followers: 13)
Advances in Linear Algebra & Matrix Theory     Open Access   (Followers: 3)
Advances in Materials Sciences     Open Access   (Followers: 14)
Advances in Mathematical Physics     Open Access   (Followers: 4)
Advances in Mathematics     Full-text available via subscription   (Followers: 11)
Advances in Numerical Analysis     Open Access   (Followers: 5)
Advances in Operations Research     Open Access   (Followers: 12)
Advances in Porous Media     Full-text available via subscription   (Followers: 5)
Advances in Pure and Applied Mathematics     Hybrid Journal   (Followers: 6)
Advances in Pure Mathematics     Open Access   (Followers: 6)
Advances in Science and Research (ASR)     Open Access   (Followers: 6)
Aequationes Mathematicae     Hybrid Journal   (Followers: 2)
African Journal of Educational Studies in Mathematics and Sciences     Full-text available via subscription   (Followers: 5)
African Journal of Mathematics and Computer Science Research     Open Access   (Followers: 4)
Afrika Matematika     Hybrid Journal   (Followers: 1)
Air, Soil & Water Research     Open Access   (Followers: 11)
AKSIOMA Journal of Mathematics Education     Open Access   (Followers: 1)
Al-Jabar : Jurnal Pendidikan Matematika     Open Access   (Followers: 1)
Algebra and Logic     Hybrid Journal   (Followers: 5)
Algebra Colloquium     Hybrid Journal   (Followers: 4)
Algebra Universalis     Hybrid Journal   (Followers: 2)
Algorithmic Operations Research     Full-text available via subscription   (Followers: 5)
Algorithms     Open Access   (Followers: 11)
Algorithms Research     Open Access   (Followers: 1)
American Journal of Computational and Applied Mathematics     Open Access   (Followers: 5)
American Journal of Mathematical Analysis     Open Access  
American Journal of Mathematics     Full-text available via subscription   (Followers: 6)
American Journal of Operations Research     Open Access   (Followers: 5)
An International Journal of Optimization and Control: Theories & Applications     Open Access   (Followers: 8)
Analele Universitatii Ovidius Constanta - Seria Matematica     Open Access   (Followers: 1)
Analysis     Hybrid Journal   (Followers: 2)
Analysis and Applications     Hybrid Journal   (Followers: 1)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 5)
Analysis Mathematica     Full-text available via subscription  
Annales Mathematicae Silesianae     Open Access  
Annales mathématiques du Québec     Hybrid Journal   (Followers: 4)
Annales UMCS, Mathematica     Open Access   (Followers: 1)
Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica     Open Access  
Annali di Matematica Pura ed Applicata     Hybrid Journal   (Followers: 1)
Annals of Combinatorics     Hybrid Journal   (Followers: 4)
Annals of Data Science     Hybrid Journal   (Followers: 11)
Annals of Discrete Mathematics     Full-text available via subscription   (Followers: 6)
Annals of Mathematics     Full-text available via subscription   (Followers: 1)
Annals of Mathematics and Artificial Intelligence     Hybrid Journal   (Followers: 12)
Annals of Pure and Applied Logic     Open Access   (Followers: 2)
Annals of the Alexandru Ioan Cuza University - Mathematics     Open Access  
Annals of the Institute of Statistical Mathematics     Hybrid Journal   (Followers: 1)
Annals of West University of Timisoara - Mathematics     Open Access  
Annuaire du Collège de France     Open Access   (Followers: 5)
ANZIAM Journal     Open Access   (Followers: 1)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2)
Applications of Mathematics     Hybrid Journal   (Followers: 2)
Applied Categorical Structures     Hybrid Journal   (Followers: 2)
Applied Computational Intelligence and Soft Computing     Open Access   (Followers: 11)
Applied Mathematics     Open Access   (Followers: 3)
Applied Mathematics     Open Access   (Followers: 7)
Applied Mathematics & Optimization     Hybrid Journal   (Followers: 6)
Applied Mathematics - A Journal of Chinese Universities     Hybrid Journal  
Applied Mathematics Letters     Full-text available via subscription   (Followers: 2)
Applied Mathematics Research eXpress     Hybrid Journal   (Followers: 1)
Applied Network Science     Open Access   (Followers: 3)
Applied Numerical Mathematics     Hybrid Journal   (Followers: 5)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 4)
Arab Journal of Mathematical Sciences     Open Access   (Followers: 3)
Arabian Journal of Mathematics     Open Access   (Followers: 2)
Archive for Mathematical Logic     Hybrid Journal   (Followers: 2)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 5)
Archive of Numerical Software     Open Access  
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 5)
Arkiv för Matematik     Hybrid Journal   (Followers: 1)
Armenian Journal of Mathematics     Open Access  
Arnold Mathematical Journal     Hybrid Journal   (Followers: 1)
Artificial Satellites : The Journal of Space Research Centre of Polish Academy of Sciences     Open Access   (Followers: 20)
Asia-Pacific Journal of Operational Research     Hybrid Journal   (Followers: 3)
Asian Journal of Algebra     Open Access   (Followers: 1)
Asian Journal of Current Engineering & Maths     Open Access  
Asian-European Journal of Mathematics     Hybrid Journal   (Followers: 2)
Australian Mathematics Teacher, The     Full-text available via subscription   (Followers: 6)
Australian Primary Mathematics Classroom     Full-text available via subscription   (Followers: 4)
Australian Senior Mathematics Journal     Full-text available via subscription   (Followers: 1)
Automatic Documentation and Mathematical Linguistics     Hybrid Journal   (Followers: 5)
Axioms     Open Access   (Followers: 1)
Baltic International Yearbook of Cognition, Logic and Communication     Open Access   (Followers: 1)
Basin Research     Hybrid Journal   (Followers: 5)
BIBECHANA     Open Access   (Followers: 2)
BIT Numerical Mathematics     Hybrid Journal  
BoEM - Boletim online de Educação Matemática     Open Access  
Boletim Cearense de Educação e História da Matemática     Open Access  
Boletim de Educação Matemática     Open Access  
Boletín de la Sociedad Matemática Mexicana     Hybrid Journal  
Bollettino dell'Unione Matematica Italiana     Full-text available via subscription   (Followers: 1)
British Journal of Mathematical and Statistical Psychology     Full-text available via subscription   (Followers: 20)
Bruno Pini Mathematical Analysis Seminar     Open Access  
Buletinul Academiei de Stiinte a Republicii Moldova. Matematica     Open Access   (Followers: 12)
Bulletin des Sciences Mathamatiques     Full-text available via subscription   (Followers: 4)
Bulletin of Dnipropetrovsk University. Series : Communications in Mathematical Modeling and Differential Equations Theory     Open Access   (Followers: 1)
Bulletin of Mathematical Sciences     Open Access   (Followers: 1)
Bulletin of Symbolic Logic     Full-text available via subscription   (Followers: 2)
Bulletin of the Australian Mathematical Society     Full-text available via subscription   (Followers: 1)
Bulletin of the Brazilian Mathematical Society, New Series     Hybrid Journal  
Bulletin of the London Mathematical Society     Hybrid Journal   (Followers: 4)
Bulletin of the Malaysian Mathematical Sciences Society     Hybrid Journal  
Calculus of Variations and Partial Differential Equations     Hybrid Journal  
Canadian Journal of Science, Mathematics and Technology Education     Hybrid Journal   (Followers: 19)
Carpathian Mathematical Publications     Open Access   (Followers: 1)
Catalysis in Industry     Hybrid Journal   (Followers: 1)
CEAS Space Journal     Hybrid Journal   (Followers: 2)
CHANCE     Hybrid Journal   (Followers: 5)
Chaos, Solitons & Fractals     Hybrid Journal   (Followers: 3)
ChemSusChem     Hybrid Journal   (Followers: 7)
Chinese Annals of Mathematics, Series B     Hybrid Journal  
Chinese Journal of Catalysis     Full-text available via subscription   (Followers: 2)
Chinese Journal of Mathematics     Open Access  
Clean Air Journal     Full-text available via subscription   (Followers: 1)
Cogent Mathematics     Open Access   (Followers: 2)
Cognitive Computation     Hybrid Journal   (Followers: 4)
Collectanea Mathematica     Hybrid Journal  
COMBINATORICA     Hybrid Journal  
Combinatorics, Probability and Computing     Hybrid Journal   (Followers: 4)
Combustion Theory and Modelling     Hybrid Journal   (Followers: 14)
Commentarii Mathematici Helvetici     Hybrid Journal   (Followers: 1)
Communications in Combinatorics and Optimization     Open Access  
Communications in Contemporary Mathematics     Hybrid Journal  
Communications in Mathematical Physics     Hybrid Journal   (Followers: 2)
Communications On Pure & Applied Mathematics     Hybrid Journal   (Followers: 3)
Complex Analysis and its Synergies     Open Access   (Followers: 2)
Complex Variables and Elliptic Equations: An International Journal     Hybrid Journal  
Complexus     Full-text available via subscription  
Composite Materials Series     Full-text available via subscription   (Followers: 8)
Compositio Mathematica     Full-text available via subscription   (Followers: 1)
Comptes Rendus Mathematique     Full-text available via subscription   (Followers: 1)
Computational and Applied Mathematics     Hybrid Journal   (Followers: 2)
Computational and Mathematical Methods in Medicine     Open Access   (Followers: 2)
Computational and Mathematical Organization Theory     Hybrid Journal   (Followers: 2)
Computational Complexity     Hybrid Journal   (Followers: 4)
Computational Mathematics and Modeling     Hybrid Journal   (Followers: 8)
Computational Mechanics     Hybrid Journal   (Followers: 5)
Computational Methods and Function Theory     Hybrid Journal  
Computational Optimization and Applications     Hybrid Journal   (Followers: 7)
Computers & Mathematics with Applications     Full-text available via subscription   (Followers: 8)
Concrete Operators     Open Access   (Followers: 5)
Confluentes Mathematici     Hybrid Journal  
Contributions to Game Theory and Management     Open Access  
COSMOS     Hybrid Journal  
Cryptography and Communications     Hybrid Journal   (Followers: 13)
Cuadernos de Investigación y Formación en Educación Matemática     Open Access  
Cubo. A Mathematical Journal     Open Access  
Current Research in Biostatistics     Open Access   (Followers: 9)
Czechoslovak Mathematical Journal     Hybrid Journal   (Followers: 1)
Demographic Research     Open Access   (Followers: 11)
Demonstratio Mathematica     Open Access  
Dependence Modeling     Open Access  
Design Journal : An International Journal for All Aspects of Design     Hybrid Journal   (Followers: 29)
Developments in Clay Science     Full-text available via subscription   (Followers: 1)
Developments in Mineral Processing     Full-text available via subscription   (Followers: 3)
Dhaka University Journal of Science     Open Access  
Differential Equations and Dynamical Systems     Hybrid Journal   (Followers: 3)
Differentsial'nye Uravneniya     Open Access  
Discrete Mathematics     Hybrid Journal   (Followers: 8)
Discrete Mathematics & Theoretical Computer Science     Open Access  
Discrete Mathematics, Algorithms and Applications     Hybrid Journal   (Followers: 2)
Discussiones Mathematicae - General Algebra and Applications     Open Access  
Discussiones Mathematicae Graph Theory     Open Access   (Followers: 1)
Diskretnaya Matematika     Full-text available via subscription  
Dnipropetrovsk University Mathematics Bulletin     Open Access  
Doklady Akademii Nauk     Open Access  
Doklady Mathematics     Hybrid Journal  
Duke Mathematical Journal     Full-text available via subscription   (Followers: 1)
Eco Matemático     Open Access  
Edited Series on Advances in Nonlinear Science and Complexity     Full-text available via subscription  
Electronic Journal of Combinatorics     Open Access  
Electronic Journal of Differential Equations     Open Access  
Electronic Journal of Graph Theory and Applications     Open Access   (Followers: 2)
Electronic Notes in Discrete Mathematics     Full-text available via subscription   (Followers: 2)
Elemente der Mathematik     Full-text available via subscription   (Followers: 4)
Energy for Sustainable Development     Hybrid Journal   (Followers: 9)

        1 2 3 4 | Last

Journal Cover
Demographic Research
Journal Prestige (SJR): 1.235
Citation Impact (citeScore): 2
Number of Followers: 11  

  This is an Open Access Journal Open Access journal
ISSN (Online) 1435-9871
Published by Max Planck Institute for Demographic Research Homepage  [1 journal]
  • Contraceptive use and lengthening birth intervals in rural and urban
           Eastern Africa (by Catriona Towriss, Ian Timaeus)

    • Abstract: BACKGROUND
      The transition towards low fertility has been slow in sub-Saharan Africa. Although increasing numbers of women are now using contraception, levels of unmet need for contraception remain high. And yet the dynamics of fertility are changing: national estimates have documented significant lengthening of birth intervals across the region.
      OBJECTIVE
      The aim of this paper is to explore trends in birth interval length by residence in Ethiopia, Kenya, Tanzania, and Zimbabwe, and the role of contraception in these changes.
      METHODS
      We conducted a birth interval analysis of fertility using up to six Demographic and Health Surveys from each country. We modelled age-order duration-specific period fertility using Poisson regression and calculated median birth interval lengths from the fitted rates using life-table techniques.
      RESULTS
      Birth intervals have lengthened in all four countries, most notably Zimbabwe. Urban populations now have median intervals that exceed 35 months in all four countries. The lengthening of birth intervals is associated with, although not limited to, the use of contraception. In urban areas the median birth interval among ever-users of contraception ranges between 52 and 86 months.
      CONCLUSIONS
      The increase in the length of birth intervals in Eastern Africa has been concentrated in urban areas. The trend is most pronounced among contraceptive users, but also results from unreported forms of birth control. It might become even more pronounced if access to contraception were improved.

      PubDate: Wed, 20 Jun 2018 00:00:00
       
  • Intergenerational care for and by children: Examining reciprocity through
           focus group interviews with older adults in rural Uganda (by Enid Schatz,
           Janet Seeley, Flavia Zalwango)

    • Abstract: BACKGROUND
      Children’s wellbeing in sub-Saharan Africa depends on immediate family resources and capabilities, and on extended kin. Evidence suggests that older persons contribute extensively to children’s financial, social, psychosocial, and physical needs. Young people also provide care for older persons. Yet, most studies only capture one side of this relationship.
      OBJECTIVE
      We draw attention to intergenerational care relationship reciprocity and the likely impacts on children’s wellbeing.
      METHODS
      We analyze data from the Medical Research Council/Uganda Virus Research Institute annual population census (2015–2016) in rural Kalungu District to establish the likelihood of intergenerational care exchange at the household level. Focus group discussions (FGD) with persons aged 60-plus provide information on the types of exchanges and outcomes impacted by the presence/absence of intergenerational care.
      RESULTS
      Nearly a quarter of children (age 0–14) in our study site live in households with at least one person aged 60-plus; nearly four-fifths of persons aged 60-plus reside in a household with at least one child. The FGD data suggest that persons aged 60-plus spend considerable physical and financial resources supporting children in their networks, and simultaneously are dependent upon younger generations for various forms of support.
      CONCLUSIONS
      Older persons’ positive relationships with children in their care form a strong basis for the exchange of various types of support; when intergenerational tensions exist, reciprocal care may be less reliable. This intergenerational solidarity, or lack thereof, likely affects children’s wellbeing.

      PubDate: Fri, 15 Jun 2018 00:00:00
       
  • The association between CVD-related biomarkers and mortality in the Health
           and Retirement Survey (by Hannes Kröger, Rasmus Hoffmann)

    • Abstract: BACKGROUND
      It has become increasingly common in multiple purpose general population surveys to integrate different kinds of biomarker in the data collection process.
      OBJECTIVE
      In this article we test the predictive power of five different functional forms of CVD-related biomarkers for all-cause and CVD mortality in the Health and Retirement Study (HRS).
      METHODS
      We use five different functional forms of biomarker: A risk factor index, risk factors separately, continuous biomarkers, risk groups comprising every possible combination of risk factors, and a cluster analytic approach to identify risk profiles in the sample. We use data from the Health and Retirement Study (HRS) with information on four collected biomarkers (glycated hemoglobin (hbA1c), high-density lipoprotein (HDL), total cholesterol, and C-reactive protein (CRP)) with an eight-year mortality follow-up period.
      RESULTS
      The results show that the additive index has comparatively high predictive power, relative to its simplicity. Risk profiles were identified in the data, with substantial differences in mortality risk between the profiles. The more complex functional forms improve prediction only moderately compared to the simple index, although we can identify groups with an elevated mortality risk that are not identified in more parsimonious approaches.
      CONCLUSIONS
      Depending on the specific research question, both a very simple modeling of biomarker information and more detailed examinations of specific complex risk profiles can be appropriate.

      PubDate: Tue, 12 Jun 2018 00:00:00
       
  • Migration responses of immigrants in Spain during the Great Recession (by
           Victoria Prieto, Joaquín Recaño, Doris Quintero-Lesmes)

    • Abstract: OBJECTIVE
      We aim to describe the impact of the crisis on the intensity and demographic profile of internal migration and different forms of international emigration.
      METHODS
      Using microdata from the Residential Variation Statistics for 2006‒2013, we estimate the rates of interregional migration and the different forms of international emigration, including return migration and remigration. We used multinomial regressions.
      RESULTS
      Return migration and emigration to an unknown destination increased significantly with respect to interregional mobility at early and late stages of the crisis. In contrast, interregional migration was more likely than international emigration before the first stage. Regardless of birthplace, Spanish citizenship is an asset for mobility within Spain and the EU for all foreign-born individuals, and for emigration to non-EU countries for Cubans. Finally, emigration to an unknown destination resembles return migration in its composition by sex, age, and origin.

      PubDate: Tue, 12 Jun 2018 00:00:00
       
  • Probabilistic projection of subnational total fertility rates (by Hana
           Sevcikova, Adrian E. Raftery, Patrick Gerland)

    • Abstract: BACKGROUND
      We consider the problem of probabilistic projection of the total fertility rate (TFR) for subnational regions.
      OBJECTIVE
      We seek a method that is consistent with the UN’s recently adopted Bayesian method for probabilistic TFR projections for all countries and works well for all countries.
      METHODS
      We assess various possible methods using subnational TFR data for 47 countries.
      RESULTS
      We find that the method that performs best in terms of out-of-sample predictive performance and also in terms of reproducing the within-country correlation in TFR is a method that scales each national trajectory from the national predictive posterior distribution by a region-specific scale factor that is allowed to vary slowly over time.
      CONCLUSIONS
      Probabilistic projections of TFR for subnational units are best produced by scaling the national projection by a slowly time-varying region-specific scale factor. This supports the hypothesis of Watkins (1990, 1991) that within-country TFR converges over time in response to country-specific factors, and thus extends the Watkins hypothesis to the last 50 years and to a much wider range of countries around the world.

      PubDate: Fri, 08 Jun 2018 00:00:00
       
  • The effects of family and location on wealth: A longitudinal study of the
           US North, 1850–1870 (by Alice Kasakoff, Andrew Lawson, Purbasha
           Dasgupta, Michael DuBois, Stephen Feetham)

    • Abstract: BACKGROUND
      Family effects can be confounded with spatial effects, since family members live near each other.
      OBJECTIVE
      Our aim is to find out whether a father’s wealth was related to his son’s wealth when spatial effects are included in the model. The data is from the United States from 1850 to 1870. Since the data comes from genealogies we are also able to test for deeper family effects lasting several generations.
      METHODS
      This article uses Bayesian longitudinal methods that incorporate spatial effects. The data comes from the genealogies of nine New England families that have been linked to the US censuses of 1850, 1860, and 1870, which had information on real property, the dependent variable in our analysis.
      RESULTS
      No relationship was found between the wealth of the father and his sons in our data, nor were the deeper family effects significant. Spatial effects were also not significant. However, there was a strong temporal effect: Men were wealthier in 1860 than they were in 1850 or 1870.
      CONCLUSIONS
      There is evidence of economic mobility in a rapidly expanding population and economy such as the United States was during the 19th century. Since temporal effects were more important than spatial effects the amount of mobility might be transitory and highly dependent upon the particular time period and cohort being studied.

      PubDate: Thu, 07 Jun 2018 00:00:00
       
  • Family structure and child development in Chile: A longitudinal analysis
           of household transitions involving fathers and grandparents (by Sarah
           Reynolds, Lia C.H. Fernald, Julianna Deardorff, Jere Behrman)

    • Abstract: BACKGROUND
      Adults support child development economically, socially, and emotionally. Household transitions may disrupt these support structures, impacting child development.
      OBJECTIVE
      We document the large portion of children in Chile that experience biological-father and grandparent household transitions, and test if these transitions are associated with child vocabulary and behavior and if income could be a mechanism behind our findings.
      METHODS
      We apply first-differences and lagged-dependent-variable analyses to a large, nationally representative, longitudinal survey of over 5,000 Chilean children.
      RESULTS
      We find that children whose mothers separated from their parents’ homes within the two years between two survey rounds have worse age-normalized Peabody Picture Vocabulary Test scores than children in households without such transitions. Changes in income per capita do not explain these associations. When fathers enter households between the two survey rounds there is a gain in income per capita but no association between father entrance and child’s vocabulary score. Similarly, there is no significant association between fathers separating from the household and child vocabulary, though father departure is associated with lower income per capita. We find no association between household transitions and Child Behavioral Checklist (CBCL) scores.
      CONCLUSIONS
      These findings provide evidence that Chilean grandparents promote language development when coresiding with their grandchildren and that Chilean fathers are an important source of household income.

      PubDate: Tue, 29 May 2018 00:00:00
       
  • Post-transitional regional fertility in Romania (by Danut-Vasile Jemna,
           Mihaela David)

    • Abstract: BACKGROUND
      The slight variations in the main demographic indicators, particularly in fertility, recorded after 1995 suggest that the process of demographic transition has reached its final stage. Despite this stabilization at national level, significant differences in the evolution of fertility are found among the eight development regions of Romania.
      OBJECTIVE
      The aim of this article is to analyze empirically the specific dynamics of this phenomenon in relation to its main demographic and socioeconomic determinants.
      METHODS
      Using regional data registered between 1995 and 2015, pooled, fixed effects, and random effects panel models were applied.
      RESULTS
      Our empirical findings highlight that the variations in the total fertility rate are explained, at regional level and within the post-transitional demographic stage, by the changes in female employment rate, urbanization degree, real GDP per capita, marriage rate, and mean age of woman at first birth.

      PubDate: Fri, 25 May 2018 00:00:00
       
  • Cohort fertility and educational expansion in the Czech Republic during
           the 20th century (by Krystof Zeman)

    • Abstract: BACKGROUND
      During the 20th century the Czech Republic went through profound changes in female employment, gender roles, population and family policies, and public childcare. The educational structure of the female population changed tremendously. At the same time, completed cohort fertility fluctuated between 1.8 and 2.2 children per woman.
      OBJECTIVE
      This article analyses the changes in the level of completed cohort fertility by education, during educational expansion in the Czech population under the economic, cultural, and institutional background of the state socialist regime, and after its breakdown.
      METHODS
      The changes in the level of completed cohort fertility by education are analysed by means of decomposition, complemented by the analysis of parity composition.
      RESULTS
      During the 20th century, education-specific completed cohort fertility increased, rather than declined. Fertility levels converged upwards, contributing to high uniformity within educational categories. The overall changes in fertility levels were driven by changes in the educational structure. These trends resulted in the dominance of the two-child family, while large families were disappearing and childlessness dropped to the biological minimum.
      CONCLUSIONS
      An egalitarian economic system with traditional family-friendly policies, in combination with a family-unfriendly labour market, developed into a male breadwinner model of low gender equity. Future family policies should focus on the reconciliation of work and family.

      PubDate: Thu, 24 May 2018 00:00:00
       
  • Measuring fertility through mobile‒phone based household surveys:
           Methods, data quality, and lessons learned from PMA2020 surveys (by
           Yoonjoung Choi, Qingfeng Li, Blake Zachary)

    • Abstract: BACKGROUND
      PMA2020 is a survey platform with resident enumerators using mobile phones. Instead of collecting full birth history, total fertility rates (TFR) have been measured with a limited number of questions on recent births. Employing new approaches provides opportunities to test and advance survey methods.
      OBJECTIVE
      This study aims to assess the quality of fertility data in PMA2020 surveys, focusing on bias introduced from the questionnaire and completeness and distribution of birth month and year, and to estimate TFR adjusted for identified data quality issues.
      METHODS
      To assess underestimation from the questionnaire, we simulated births that would be counted using the PMA2020 questionnaires compared to births identified from full birth history. We analyzed the latest Demographic and Health Surveys in ten countries where PMA2020 surveys have been implemented. We assessed the level of reporting completeness for birth month and year and heaping of birth month, analyzing 39 PMA2020 surveys. Finally, TFR were calculated and adjusted for biases introduced from the questionnaire and heaping in birth month.
      RESULTS
      Simple questions introduced minor bias from undercounting multiple births, which was expected and correctable. Meanwhile, incomplete reporting of birth month was relatively high, and the default value of January in data collection software systematically moved births with missing months out of the reference period. On average across the 39 surveys, TFR increased by 1.6% and 2.4%, adjusted for undercounted multiple births and heaping on January, respectively.

      PubDate: Wed, 23 May 2018 00:00:00
       
  • Non-zero trajectories for long-run net migration assumptions in global
           population projection models (by Guy J. Abel)

    • Abstract: BACKGROUND
      Little attention is given to the role of migration in global population projection models. Most demographers set future levels of net migration on trajectories towards zero in all countries, nullifying the impact of migration on long-run projected populations. Yet as fertility and mortality rates fall, the role of migration on future population change is becoming more pronounced.
      OBJECTIVE
      In this paper we develop future long-run migration scenarios to provide a range of possible outcomes.
      METHODS
      Our alternative migration scenarios are linked to the Shared Socioeconomic Pathways (SSP), widely used in research on global environmental change. These are utilized as inputs for a global cohort component projection model to obtain population totals up until 2100 for all countries.

      PubDate: Wed, 16 May 2018 00:00:00
       
 
 
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