© Koninklijke Brill NV, Leiden, 2010 DOI: 10.1163/156913210X12493538729838 Comparative Sociology 9 (2010) 376–396 brill.nl/coso C O M P A R A T I V E S O C I O L O G Y Qualitative Comparative Analysis (QCA) and Fuzzy-Sets: Agenda for a Research Approach and a Data Analysis Technique Claudius Wagemann a and Carsten Q. Schneider b a) Istituto italiano di scienze umane, Palazzo Strozzi, Piazza degli Strozzi, 50123 Florence, Italy firstname.lastname@example.org b) Department of Political Science and Center for the Study of Imperfections in Democracies, Central European University, Nador utca 9, 1051 Budapest, Hungary email@example.com Abstract “Qualitative Comparative Analysis” (QCA) is an increasingly applied method- ological tool in comparative social sciences. It is well suited for the analysis of causally complex claims framed in terms of necessity and suﬃ ciency. Th is article presents the epistemology of QCA and discusses its applicability to social science research questions. It also illustrates some of the features that have recently been added to this set of methodological tools. Th is article is best read in close conjunc- tion with Schneider and Wagemann’s “Standards of Good QCA Practice,” the next paper in this journal issue. Keywords QCA, fuzzy sets, comparative
Comparative Sociology – Brill
Published: Jan 1, 2010
Keywords: comparative methods; sufficiency and necessity; set-theoretic relations; fuzzy sets; QCA; causal complexity
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