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Andreas Filser

Welcome to my page!

I am a PhD student at the Group for Social Research Methods at University of Oldenburg. I am also a Research Fellow at the Research Data Centre of the Institute for Employment Research (IAB). My primary esearch interests lie in social and evolutionary demography as well as the sociology of the family.
Find out more about my dissertation project on imbalanced sex ratios or check out my presentations and publications.

Feel free to contact me!

Curriculum Vitae

Andreas Filser has a M.Sc. in socio-economics from the University Erlangen-Nuremberg and a B.A. in sociology and economics from the University of Konstanz, for which he spent time at Uppsala Universitet (Sweden).
Since March 2016, he holds a position as research assistant and PhD candidate in the group for Social Research Methods at the University of Oldenburg. Since April 2021, Andreas is also a Research Fellow at the Research Data Centre of the Institute for Employment Research (IAB), Nuremberg.

Research interests

My main research activity focuses upon questions around the formation and trajectories of couples. In my dissertation project, I study sex ratios and partner markets (find a detailed description below). On a theoretical level, my principal interest is to bring together sociological and evolutionary theories on human behavior, specifically in demography and family research. In my research, I use quantitative methods and I am an enthusiastic user of the R software package for statistical computing, yet I also ‘speak Stata’ fluently.

  • Social and evolutionary demography
  • Sociology of the family
  • Quantitative methods

Dissertation project: Social consequences of imbalanced sex ratios

My dissertation project addresses social consequences of imbalanced numerical proportions of men and women (i.e. sex ratios). Researchers across the biological and social sciences have linked imbalanced sex ratios with consequences as diverse as gender roles, sexual behavior, partnership formation, fertility, personality, and incidence of violence. However, empirical evidence remains largely inconclusive, which is potentially due to data and methodological shortcomings. In particular, studies have for the most part failed to use individual level data, impeding the analysis of moderating individual characteristics. This brings along that underlying mechanisms often remain speculative, with proposed explanations contradicting each other at times. In a series of projects, I will contribute to overcoming these problems and the corresponding explanatory gaps. First, I address methodological aspects evolving around sex ratio effects on family processes in a project combining German longitudinal relationship survey data (pairfam) with official population data. Second, I make use of individual level Scandinavian register data to study associations of sex ratios with incidence of violent offending. Third, I analyze associations of sex ratios with relationship and family formation processes in a further register-based study. Fourth, a recently started project examines sex ratio imbalances and partner markets in a historical population with special focus on spatial aspects of partner markets.


Filser, A., & Preetz, R. (2021). Do local sex ratios approximate subjective partner markets? Evidence from the German Family Panel. Human Nature. [Link]

Filser, A., Barclay, K., Beckley, A., Uggla, C., & Schnettler, S. (2020). Are skewed sex ratios associated with violent crime? A longitudinal analysis using Swedish register data. Evolution and Human Behavior. [Link]

Schnettler, S., & Filser, A. (2020). Social Outcomes And Sex Ratio. In T. K. Shackelford & V. A. Weekes-Shackelford (Eds.), Encyclopedia of Evolutionary Psychological Science. Springer International Publishing. [Link]

Filser, Andreas and Sebastian Schnettler. 2019. “Sex Ratio and Men’s Long-Term Mating.” Encyclopedia of Evolutionary Psychological Science, edited by T. K. Shackelford and V. A. Weekes-Shackelford. Cham: Springer International Publishing. [Link]

Filser, Andreas and Sebastian Schnettler. 2018. “Mehr Männer, Mehr Gewalt? Eine Präzisierung Möglicher Kausalmechanismen.” Pp. 63–75 in Geschlecht und Verhalten aus evolutionärer Perspektive, Die Psychogenese der Menschheit, edited by C. Schwender, S. Schwarz, and A. Huckauf. Lengerich: Pabst-Science Publishers.

Wuppermann, Amelie, Sebastian Bauhoff, Andreas Filser, and Manfred Antoni. 2017. “Krankenkassen im regionalen Vergleich.” Pp. 97–121 in Krankenversicherung im Rating, edited by T. Adolph, O. Everling, and M. Metzler. Wiesbaden: Springer Gabler. [Link]

Schnettler, Sebastian and Andreas Filser. 2015. “Demographische Maskulinisierung und Gewalt.” Pp. 130–42 in Interdisziplinäre Anthropologie, edited by G. Hartung and M. Herrgen. Wiesbaden: Springer VS. [Link]

Talks & presentations

Andreas Filser & Kai Willführ. Do Younger Wives Increase Male Fertility? Evidence from the Historical Population of the St. Lawrence Valley. 45th Annual Meeting of the Social Science History Association. 21.11.-24.11.2019, Chicago, IL.

Richard Preetz & Andreas Filser. How alternatives affect the development of living apart together partnerships: A multidisciplinary perspective. Autumn meeting of the German Sociological Association Family section. 10.10. - 11.10.2019, Bamberg.

Andreas Filser, Robert Lipp, Richard Preetz & Sven Stadtmüller. More boys, more injuries? On the association of school injuries with classroom sex ratios [Mehr Jungen, mehr Verletzungen? Zum Zusammenhang von Schulverletzungen mit der Geschlechterzusammensetzung von Schulklassen]. MVE-List Congress, 12.09. – 14.09.2019, Delmenhorst.

Andreas Filser & Richard Preetz. Subjective and local sex ratios. 114th Annual Meeting of the American Sociological Association, 10.08. – 13.08.2019, New York.

Andreas Filser & Richard Preetz. Measuring Local Sex Ratios – How Regional (Macro-)Measures Relate to Individual Partner Market Outcomes. Biannual Conference of the European Survey Research Association. 15.07 – 19.07.2019. Zagreb.

Andreas Filser & Kai Willführ. Sex Ratios and union formation in the historical population of the St. Lawrence valley. 44th Annual Meeting of the Social Science History Association. 08.11.-11.11.2018, Phoenix, AZ.

Andreas Filser & Richard Preetz. Im Auge der Betrachter*innen: Subjektive und lokale Sexualproportionen. 39th Biannual Meeting of the German Sociological Association. 24.09. - 28.09.2018, Göttingen. (Poster)

Andreas Filser & Richard Preetz. Same same but different? Measuring local Sex Ratios. VIII European Congress of Methodology. 25.07. - 27.07.2018, Jena.

Andreas Filser & Richard Preetz. Same same but different - Perceived and local sex ratios. European Population Conference. 06.06. - 09.06.2018, Brussels. (Poster)

Andreas Filser, Richard Preetz und Sebastian Schnettler. Consequences of imbalanced sex ratios on (anti-) social behavior. Biannual Meeting of the Austrian Sociological Association. 07.12. - 09.12.2017, Graz.

Andreas Filser & Sebastian Schnettler. The association of sex ratios and aggressive behavior in vocational schools. MVE-List Congress. 06.03. - 08.03.2017, Ulm.

Andreas Filser. Sex Ratio Effects on Violent Crime. SUDA Demographic Colloquium Series. 15.09.2016, Stockholm.

Sebastian Schnettler, Kieron Barclay, Amber Beckley & Andreas Filser. Do Biased Sex Ratios affect Violent Crime? A Longitudinal Analysis using Swedish Register Data. 108th Annual Meeting of the American Sociological Association, 10.08. – 13.08.2013, New York

Teaching and lecture notes

Current teaching


Winter term 2021 / 2022

1.07.056 Statistik I |

Visualizing data and results in R using ggplot2

Find my ggplot2 intro slides here (in German). Contact me if you have questions!

Stata lecture notes

Find my introductory Stata lecture notes from the 40th Gesis Methods Seminar here. Contact me if you have questions!

(Changed: 2021-07-05)