Scholars have documented the importance of national-level factors for the competitive success of firms on a global scale. These studies typically identify multiple factors that are behind the emergence of large and successful firms in particular national clusters. However, there has been...

This article provides a largely nontechnical discussion of the acquisition of membership values in fuzzy set analyses. First the basic properties of a membership are discussed. Then the three common strategies of membership assignment—direct subjective assignment, indirect subjective...