Welcome

Welcome to my personal homepage! I am Professor for Methods of Comparative Political Research at the Cologne Center for Comparative Politics at the University of Cologne. My research interests are social science methods with an emphasis on case studies, Qualitative Comparative Analysis (QCA), and multimethod research. Substantively, I work on political parties.

Rohlfing – cv – 19-02

New

Forthcoming: “Clarifying the relationship between theories of causation and social science methods for causal inference”
The article “Check your truth conditions! Clarifying the relationship between theories of causation and social science methods for causal inference”, co-authored with Christina Zuber, is forthcoming with Sociological Methods & Research.¬† The accepted preprint can be accessed on my publications webpage. Here is the replication material.

Forthcoming: “The time-varying relationship between economic globalization and the ideological center of gravity of party systems”
An article co-authored with Tobias Schafföner is forthcoming with PLOS ONE on Feb 28. The reproduction material is available in an OSF repository.

Updated working paper on relationship between crisp ses, fuzzy sets and consistency in QCA
I have written a working paper on the relationship between the choice of crisp and fuzzy sets and the consequences for finding a consistent set relation. Contrary to a commonly held view (I think it is a commonly held view), consistency values are not necessarily more conservative for fuzzy sets than crisp sets.

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