About
I am Professor of Statistical Methodology at the University of Southampton. Following the completion of my studies, I joined the Research and Development unit of the Statistical Office of the European Union (Eurostat) as a trainee researcher. Upon obtaining my PhD, I held a postdoctoral position at the University of Southampton, before taking up academic appointments at the Centre for Longitudinal Studies, Institute of Education, University College London, and subsequently at the Cathie Marsh Institute for Census and Survey Research, University of Manchester. I returned to the University of Southampton in September 2010 and was appointed Professor of Statistical Methodology in 2016. Between 2014 and 2018, I served as Head of the Department of Social Statistics and Demography, and from 2018 to 2023 as Head of the School of Economic, Social and Political Sciences.
My research has received funding from the European Union's Framework Programmes and Horizon Europe, the UK Economic and Social Research Council, the British Academy, the UK Office for National Statistics, and the UK Foreign and Commonwealth Office. I am actively engaged in knowledge exchange and enterprise activities with National Statistical Institutes and Government Departments in the United Kingdom, as well as with National Statistical Institutes overseas (e.g., in the Netherlands, Mexico, Bangladesh, and Colombia), and with international organisations including the United Nations and the World Bank.
I have served as Vice-President of the International Association of Survey Statisticians (IASS), a section of the International Statistical Institute (ISI), and as Chair of the IASS Prizes Committee (2021–2023). I am a member of the ISI Ethics Advisory Board, an elected Fellow of the ISI, and a member of the Ethics and Data Governance Section of the Royal Statistical Society. I have served as an Academic Assessor for the UK Government Statistical Service Fast Stream. In 2023, I held the Johann von Spix Professorship at the University of Bamberg. Since January 2025, I serve as Joint Editor of the Journal of the Royal Statistical Society Series A, and continue in my role as Associate Editor of the Journal of Official Statistics.
Research
Research groups
Research interests
- Small Area Estimation and official statistics
- Outlier robust inference; Quantile and M-quantile models
- Geospatial data; Poverty mapping; Statistical inference under data aggregation and displacement
- Machine learning in official statistics
- Random effects models and longitudinal data analysis
Current research
United Nations – Contract for technical advice and capacity building for the statistical office of Colombia (DANE) (PI- N Tzavidis & A Luna Hernandez)
Sponsor: United Nations
World Bank – Contract for small area poverty assessment in Mozambique and Sahel (PI- N Tzavidis)
Sponsor: World Bank
Extreme Poverty – (PI - Tzavidis, N., Tatem, A. & Luna Hernandez, A.)
https://povertyevidence.org/who-we-are/our-team/
Sponsor: Foreign, Commonwealth and Development Office (FCDO)
MAKSWELL-EU H2020 CO-CREATION- (PI – Tzavidis, N. & Smith P.A.)
Sponsor: European Union Horizon 2020
H2020 - INFRAIA-01- InGRID2 – (Tzavidis, N., Luna Hernandez, A. & Zhang, L.)
https://www.inclusivegrowth.eu
Sponsor: European Union Horizon 2020
Smith PA - ONS research (Tzavidis, N., Van Der Heijden, P., Smith, P., Dawber, J., Luna Hernandez, A. & Zhang, L.)
Sponsor: Office For National Statistics
InGRID-EU FP7-N.Tzavidis (Tzavidis, N. & Berger, Y.)
Sponsor: European Union FP7
Small Area Methods for Poverty and Living Condition Estimates SAMPLE - (Tzavidis, N.)
Sponsor: European Union FP7
ONS Main Contract (James, P., Forster, J., Pfeffermann, D., Tzavidis, N., Falkingham, J., Bijak, J., Anderson, B., Van Der Heijden, P., Dodd, E., Smith, P., Martin, D., Cockings, S., Harfoot, A., Holmes, D. J., Berger, Y., Mitra, R., Wild, M., Smith, P., Newing, A., Mcgowan, T., Vitali, A., Holland, J. A. & Zhang, L.)
Sponsor: Office for National Statistics
Research projects
Active projects
Completed projects
Publications
Pagination
Teaching
Generalised Linear Models - MSc in Statistics, MSc in Applied Statistics, MSc in Statistics with applications in Medicine
Analysis of Hierarchical (Multilevel and Longitudinal Data) - MSc in Applied Statistics, MSc in Demography, MSc in Social Research Methods and Applied Statistics
Small Area Estimation (CPD short course)
Quantile Regression (CPD short course)
External roles and responsibilities
Biography
Prizes
- ISI Fellow (2013)
- American Statistical Association (2004)
- Vice Chancellor's Teaching Award (2013)
- 2023 Johann von Spix Professor (2023)
- ISI Fellow (2013)
- American Statistical Association (2004)
- Vice Chancellor's Teaching Award (2013)
- 2023 Johann von Spix Professor (2023)