Social Sciences: Social Statistics & Demography

Jakub Bijak

MSc, PhD

Primary position:
Lecturer in Demography
Other positions:
Co-ordinator, BSc in Population and Geography

Background

I joined Social Sciences, University of Southampton in February 2009. Between 2003 and 2008, I was a researcher in the Central European Forum for Migration and Population Research (CEFMR) in Warsaw. In the period 2001–2003, I worked in the Demographic Unit of the UN International Criminal Tribunal for the former Yugoslavia (UN ICTY) in the Hague, analysing population consequences of the 1990s armed conflicts in the Balkans.

I hold PhD in economics (with specialisation in demography) and an MSc Quantitative Methods and Information Systems, both obtained from the Warsaw School of Economics.

Professional activities

Dr Jakub Bijak's photo

"My research interests focus on the applications of quantitative methods in demography."

Publications

The University of Southampton's electronic library (e-prints)

Article

Abel, Guy J., Bijak, Jakub and Raymer, James (2010) A comparison of official population projections with Bayesian time series forecasts for England and Wales. Population Trends, 141, (Autumn), 95-114. (PMID:20927031).
Bijak, Jakub and Wiśniowski, Arkadiusz (2010) Bayesian forecasting of immigration to selected European countries by using expert knowledge. Journal of the Royal Statistical Society, 173, (4), 22-[pp]. (doi:10.1111/j.1467-985X.2009.00635.x).
Bijak, Jakub, Kupiszewska , Dorota and Kupiszewski, Marek (2008) Replacement migration revisited: simulations of the effects of selected population and labor market strategies for the ageing Europe, 2002–2052. Population Research and Policy Review, 27, (3), 321-342. (doi:10.1007/s11113-007-9065-2). (PMID:18824693).
Bijak, Jakub and Kupiszewska , Dorota (2008) Methodology for the estimation of annual population stocks by citizenship group, age and sex in the EU and EFTA countries. Informatica (Ljubljana), 32, (2), 133-145.
Kupiszewski, Marek, Bijak, Jakub and Nowok, Beata (2008) The impact of future demographic trends in Europe, 2005–2050. Finnish Yearbook of Population Research, XLIII, 147-183.

Book

Bijak, Jakub (2010) Forecasting international migration in Europe: A Bayesian view, Dordrecht, NL, Springer (Springer Series on Demographic Methods and Population Analysis, vol. 24).

Book Section

Noble, Jason, Silverman, Eric, Bijak, Jakub, Rossiter, Stuart, Evandrou, Maria, Bullock, Seth, Vlachantoni, Athina and Falkingham, Jane (2012) Linked lives: the utility of an agent-based approach to modelling partnership and household formation in the context of social care. In, Proceedings of the Winter Simulation Conference 2012 (WSC2012). Berlin, DE, WSC.
Silverman, Eric, Bijak, Jakub and Noble, Jason (2011) Feeding the beast: can computational demographic models free us from the tyranny of data? In, Lenaerts, Tom, Giacobini, Mario, Bersini, Hugues, Bourgine, Paul, Dorigo, Marco and Doursat, Rene (eds.) Advances in Artificial Life, ECAL 2011: Proceedings of the Eleventh European Conference on the Synthesis and Simulation of Living Systems. Cambridge, US, MIT Press, 747-754.
Bijak, Jakub and Koryś, Izabela (2009) Poland. In, Fassman, Heinz, Reeger, Ursula and Sievers, Wiebke (eds.) Statistics and Reality: Concepts and Measurements of Migration in Europe. Amsterdam, NL, Amsterdam University Press.
Bijak, Jakub (2008) Bayesian methods in international migration forecasting. In, Raymer, James and Wiilekens, Frans (eds.) International Migration in Europe: Data, Models and Estimates. Chichester, GB, John Wiley, 255-281.
Bijak, Jakub and Kupiszewski, M. (2008) Population and labour force forecasts for selected European countries: assumptions and results. In, Hönekopp , E. and Mattila, H. (eds.) Permanent or Circular Migration? Policy Choices to Address Demographic Decline and Labour Shortages in Europe. Budapest, HU, International Organization for Migration, 11-13.
Bijak, Jakub, Kicinger, Anna, Saczuk, Katarzyna, Kupiszewska, Dorota, Kupiszewski, Marek and Nowok, Beata (2008) Long-term international migration scenarios for Europe, 2002–2052. In, Bonifazi, Corrado, Okolski, Marek, Schoorl, Jeanette and Simon, Patrick (eds.) International Migration in Europe: New Trends and New Methods of Analysis. Amsterdam, NL, Amsterdam University Press , 129-151. (IMISCOE Research).

Conference or Workshop Item

Brailsford, Sally, Silverman, Eric, Rossiter, Stuart, Bijak, Jakub, Shaw, Richard, Viana, Joe, Noble, Jason, Efstathiou, Sophia and Vlachantoni, Athina (2011) Complex systems modeling for supply and demand in health and social care. Winter Simulation Conference 2011, Phoenix, US, 11 - 14 Dec 2011. 12pp. (Submitted).
Bijak, Jakub, Wisniowski, Arkadiusz and the IMEM Team (2011) Statistical modelling of international migration flows. 58th World Statistics Congress of the International Statistical Institute (ISI2011), 21-26 August 2011 , Dublin, IE, 21 - 26 Aug 2011. 8pp.

Monograph

Bijak, Jakub, Disney, George, Lubman, Sarah and Wisniowski, Arkadiusz (2013) Towards Reliable Migration Statistics for the United Kingdom: Response to the House of Commons Public Administration Select Committee Call for Evidence on Migration Statistics. Southampton, GB, Centre for Population Change, 8pp.
Findlay, Allan M, McCollum, David , Abel, Guy, Wisniowski, Arek and Bijak, Jakub (2012) A Delphi survey of immigration to the UK to 2060, with particular reference to environmental mobility. Southampton, GB, University of Southampton (Centre for Population Change Working Papers, 28).
Abel, Guy J., Bijak, Jakub, Findlay, A.M., McCollum, D. and Wisniowski, Arkadiusz (2012) Forecasting environmental migration to the United Kingdom, 2010 - 2060: an exploration using Bayesian models. Southampton, GB, ESRC Centre for Population Change (Centre for Population Change Working Paper, 22).
Abel, Guy J., Bijak, Jakub, Forster, Jonathan J., Raymer, James and Smith, Peter W.F. (2010) What do Bayesian methods offer population forecasters? , UK, ESRC Centre for Population Change (ESRC Centre for Population Change Working Paper , 6).
Abel, Guy J., Bijak, Jakub, Forster, Jonathan J., Raymer, James and Smith, Peter W.F. (2010) Bayesian population forecasts for England and Wales. , Statistical Office of the European Union (EUROSTAT) (Joint Eurostat/UNECE Work Session on Demographic Projections, WP37).
Bijak, Jakub (2010) Dealing with uncertainty in international migration predictions: from probabilistic forecasting to decision analysis. , Statistical Office of the European Union (Joint Eurostat/UNECE Work Session on Demographic Projections, WP22).
Bijak, Jakub (2010) Independent review of methods for distributing international immigration estimates to regions. Southampton, UK, University of Southampton
Abel, Guy J., Bijak, Jakub and Raymer, James (2010) A comparison of official population projections with Bayesian time series forecasts for England and Wales. Southampton, GB, ESRC Centre for Population Change (Centre for Population Change Working Paper, 7).
Bijak, Jakub and Wiśniowski, Arkadiusz (2009) Forecasting of immigration flows until 2025 for selected European countries using expert information. Warsaw, Poland, Central European Forum, 99pp. (CEFMR Working Papers).
 

Research

Research Interests

My research interests focus on the applications of quantitative methods in demography, especially in migration and population forecasting, agent-based population modelling, demography of conflict and violence and international migration studies, as well as on research on population ageing, mortality, links between population and the environment and demographic uncertainty. In particular, I am interested in the methods of mathematical statistics, especially in the Bayesian approach, including econometric modelling, stochastic processes and decision-making under uncertainty.

Work in progress

Springer has just published my book entitled Forecasting International Migration in Europe: A Bayesian View. As migration is the most volatile component of population change, any demographic forecasts are in need of suitable predictions of future migration flows, together with an appropriate uncertainty assessment. In the book I present an overview of existing theories, methods and models used for forecasting migration flows, followed by a proposition of a forecasting framework based on the Bayesian approach, and then a discussion of the predictions from the point of view of forecast users (decision-makers).
 
In terms of more general research activities, I am contributing to the works of the ESRC Centre for Population Change (CPC). Specifically, I participate in the research of strand 4 of the CPC, devoted to 'Modelling population growth and enhancing the evidence base for policy', as well as in an EPSRC project Care Life Cycle, devoted to the application of methods of the complexity science in the areas of demography, health and social care. In the latter project, I am leading a work strand on uncertainty in agent-based models of population.
 
Between 2009 and 2012, I was also participating in a research project, IMEM (Integrated Modelling of European Migration), funded by the NORFACE programme. The aim of the project was to model population flows among EU and EFTA countries and to assess the uncertainty of the estimates by means of Bayesian statistics, formally incorporating the expert judgement.

Responsibilities

Teaching Responsibilities

In the winter semester of 2012-13 I was teaching Population and the Environment (DEMO3008) and contributing to Introduction to Demographic Methods (DEMO1001). In the summer semester, I am teaching Population Projections (DEMO6016), as well as Demography of Conflict and Violence (DEMO6025).

PhD Supervision

Richard Kapend, Assessing demographic trends before, during and in the aftermath of the 1998–2004 armed conflict in DR Congo (ESRC 1+3 studentship for 2010–2013; supervised jointly with Andrew Hinde)

George Disney, Improving the quality of international migration statistics in the UK (ESRC CASE studentship for 2010–2013; supervised jointly with James Brown)

Amie Kamanda, The demography of conflict in Sierra Leone, 1991–2002 (ESRC 1+3 studentship for 2011–2014; supervised jointly with Sabu Padmadas)

Sarah Lubman
, The policy of dispersal of asylum seekers in the UK since 1999 (ESRC 1+3 studentship for 2011–2014; supervised jointly with Nyovani Madise)

Jason Hilton, Simulation methods for demography (EPSRC ICSS studentship; supervised jointly with Jason Noble, Electronics and Computer Science, 2012–2015)

Neil Bailey, An investigation into the migratory patterns and outcomes of young people to institutes of higher education in the UK between 2007 and 2011 (ESRC 1+3 studentship; supervised since 2012, jointly with Sylke Schnepf, 2011-2014)

PhD Students of Dr Bijak

(L-R): George, Richard, Jakub, Amie and Sarah

PhD Students of Dr Bijak

Jakub and Jason at the UCM 2012

Jakub and Jason at the UCM 2012

Contact

Dr Jakub Bijak
Social Statistics & Demography
Social Sciences
University of Southampton
Southampton
SO17 1BJ
United Kingdom

Room Number: 58/3035

Telephone: (023) 8059 7486
Facsimile: (023) 8059 3858
Email: J.Bijak@soton.ac.uk