fuzzy: A program for performing qualitative comparative analyses (QCA) in Stata
Kyle C. Longest
Department of Sociology
University of North Carolina at Chapel Hill
Chapel Hill, NC
[email protected]
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Stephen Vaisey
Department of Sociology
University of North Carolina at Chapel Hill
Chapel Hill, NC
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Abstract. Qualitative comparative analysis (QCA) is an increasingly popular analytic
strategy, with applications to numerous empirical fields. This article
briefly discusses the substantive motivation and technical details of QCA,
as well as fuzzy-set QCA, followed by an in-depth discussion of how the new
program fuzzy performs these techniques in Stata. An empirical
example is presented that demonstrates the full suite of tools contained
within fuzzy, including creating configurations, performing a series
of statistical tests of the configurations, and reducing the identified
configurations.
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Kyle C. Longest, Stephen Vaisey
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fuzzy, cmvom, cnfgen, coincid, coverage, fzplot, mavmb, reduce, setgen, suffnec, truthtab, yavyb, yvn, yvo, yvv, yvy, qualitative comparative analysis, QCA, fuzzy sets, Boolean logic, Boolean data, postestimation command
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