current projects

Ethno-Religious Minority Infrastructures in Germany

With Merlin Schaeffer, Susanne Böller and Sarah Carol.

Since the canonical work of the Chicago School of urban sociology, so-called ‘ethnic and religious enclaves’ have been an important topic in urban social science research on immigration. Ethnic enclaves have been conceived as important stepping stones for the initial integration of new immigrants. A century of urban social science research on ethno-religious enclaves has resulted in the insight that it is particularly three types of ‘ethnic and religious minority infrastructures’ that underly the social capital and other benefits a vibrant ethno-religious community offers to its residents: ethnic social capital, the enclave economy, and places of worship. It is these important infrastructure dimensions of the ethnic enclave that we focus on in this paper. Despite the fact that ethno-religious minority infrastructures play such a central role in urban theory and research, the default of assessing them in quantitative research is to use the population share of immigrants and their descendants, or the population share of members of a certain ethnicity. The default quantitative mode of assessing ethnic enclaves therefore lags behind theoretical and ethnographic work and thereby stalls further development of the field. Against this background, this paper introduces a novel approach to directly map ethnic infrastructures based on several sources of digital data. In particular, we map ethnic associations, ethnic shopping facilities, and minority places of worship across Germany’s cities and rural regions. This allows us to establish important original facts about ethnic infrastructures in Germany. More importantly, our explicit measures of ethnic infrastructure allow us to investigate the acculturation dynamics that give rise to institutionalization of visible ethnic infrastructures. Finally, our data enables us to empirically assess the validity of population shares as proxies for ethnic infrastructures under different scenarios.


Ethnic diversity, trust and social distancing during the corona-pandemic

Ongoing research with Markus Konrad, Ruud Koopmans and James Laurence. A short research note has been published in the WZB Mitteilungen 168.


Residential mobility among ethnic minorities in Germany and its consequences for well-being and social embeddedness (WELLMOB)

My postdoc project with Merlin Schaeffer and Sarah Carol. We investigate the role of neighborhood characteristics for the wellbeing of ethnic minorities in Germany using granular data on places of residence and on moves.


Skill-shortages or credential inflation? A cohort-analysis of qualification mismatches in Great Britain and Germany

Working paper.
Over the past century, completion of educational programs at all levels has increased dramatically. This dramatic expansion of education has been recognized by sociologist as one of the major forces shaping social change. However, it remains debated whether educational expansion has outstripped the demand for qualified labour, resulting in credential-inflation, or, whether, despite increases in education, modern economies face a skill-shortage. Focussing on the United Kingdom and West Germany, two highly developed, but institutionally dissimilar countries, this paper therefore asks to what degree the sharp expansion of education has been absorbed by labour markets. I point out shortcomings of traditional wage-centred analyses and develop an alternative approach that focuses on period and cohort trends in self-reported mismatches between individuals’ education and their jobs, that is, on over- and underqualification.  Based on repeated surveys (UK: Skills and Employment Survey, 1986-2017; Germany: Socioeconomic Panel Study, 1984-2016) and on official labour force surveys, I show that overqualification has increased and underqualification decreased in the United Kingdom since the 1980s, both over historical time and over cohorts. In Germany, by contrast, mismatch-differences are minimal between cohorts, but the overall incidence of underqualification increased whereas overqualification decreased. Further analyses of cohort-differences in mismatch provide clear evidence that overqualification increased with educational expansion in the United Kingdom but not in Germany. I document that credential inflation at the tertiary level trickled down the qualification hierarchy in the United Kingdom, suggesting a labour queue mechanism and a positional value of education. My findings document that the United Kingdom experiences credential inflation, whereas West-Germany is affected by a mild skill-shortage, mainly among middling positions that require vocational training. I relate these findings to well-documented differences in patterns of educational expansion between the United Kingdom and Germany that are rooted in contrasting institutional logics.


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