Ester Lazzari
Demographer
About Me
I am a researcher and lecturer at the University of Vienna, affiliated with the Wittgenstein Centre for Demography and Global Human Capital. My research explores how biological factors such as stress, health, and fecundity interact with social relationships, environments, and institutions to shape family formation and reproductive behaviour. By bringing together different kinds of data and combining individual- and societal-level perspectives, I aim to better understand why birth rates are changing and how policies can support people in achieving their reproductive goals.
View my CV for a full overview of my academic background and publications.
Publications
Showing 10 of 23 publications
He said, she said: How third-party presence shapes infertility reporting in couples
E Lazzari, N Milewski, & J Passet-Wittig
Demographic Research
January 2026
Infertility and unrealized ideal family size
E Lazzari & E Beaujouan
Population and Development Review
January 2026
Generational changes in self-reported infertility among migrants in Australia
J Passet-Wittig, E Lazzari, & N Milewski
Journal of Migration and Health
December 2025
Shifting the reproductive window: The contribution of ART and egg donation to fertility rates in the UK
L Bruckamp & E Lazzari
Population Studies
October 2025
Fertility preferences adjusted: reimagining parenthood in response to the uncertainty of infertility
E Lazzari
Genus
May 2025
Self-assessed health and fertility expectations of men and women across the life course
E Lazzari & E Beaujouan
Demography
April 2025
The effect of parental caregiving on the fertility expectations of adult children
E Lazzari & V Zurla
European Journal of Population
November 2024
Change in the perceived reproductive age window and delayed fertility in Europe
E Lazzari, MC Compans, & E Beaujouan
Population Studies
March 2024
Impacts of COVID-19 on Medically Assisted Live Birth Rates in the United States in 2020 and 2021
K Tierney & E Lazzari
Population Research and Policy Review
January 2024
Parental sociodemographics of medically assisted reproduction births in the United States: a dyadic population-level study
E Lazzari & K Tierney
Fertility and Sterility Reports
September 2023
The continuing decline in cohort fertility and narrowing educational differences
E Gray & E Lazzari
Australian Population Studies
May 2023
Childbirth timing and completed family size by the mode of conception—the role of medically assisted reproduction: a population-based cohort study in Australia
S Choi, E Lazzari, C Venetis, & GM Chambers
The Lancet Regional Health - Western Pacific
April 2023
The contribution of survival to changes in the net reproduction rate
T Shen, E Lazzari, & V. Canudas-Romo
Population Studies
March 2023
Did the COVID-19 pandemic affect fertility desires in Australia? Understanding why people changed their attitudes towards having a first or additional child
E Lazzari, A Reimondos, & E Gray
Population and Development Review
March 2023
Projecting the Contribution of Assisted Reproductive Technology to Completed Cohort Fertility
E Lazzari, M Potančoková, T Sobotka, E Gray, & G Chambers
Population Research and Policy Review
February 2023
Residential proximity to a fertility clinic is independently associated with likelihood of women having ART and IUI treatment
E Lazzari, GM Chambers, & B Baffour
Human Reproduction
November 2022
A dyadic approach to the study of perceived subfecundity and contraceptive use
E Lazzari, E Gray, & B Baffour
Demographic Research
July 2022
Cross-sectional average length of life by parity: Country comparisons
R Mogi, E Lazzari, J Nisén, & V Canudas-Romo
Population Studies
April 2022
The contribution of assisted reproductive technology to fertility rates and parity transition: An analysis of Australian data
E Lazzari, E Gray, & GM Chambers
Demographic Research
November 2021
Changing trends between education, childlessness and completed fertility: a cohort analysis of Australian women born in 1952–1971
E Lazzari
Journal of Population Research
August 2021
Pathways into childbearing delay of men and women in Australia
E Lazzari
Longitudinal and Life Course Studies
April 2021
Educational composition and parity contribution to completed cohort fertility change in low-fertility settings
E Lazzari, R Mogi, & V Canudas-Romo
Population Studies
March 2021
Socio-economic changes in the age patterns of childbearing in Australia.
E Lazzari
Australian Population Studies
November 2019
Current Projects
The influence of chronic stress-related biomarkers on the fertility trajectories of men and women (BIOFAM)
Ongoing
Biological, Individual and Contextual Factors of Fertility Recovery (BIC.Late)
Ongoing