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This article continues an established series of analyses across 48 years of institutional research productivity in supply chain management (SCM) journals, ranking the top 25 schools producing SCM research in 2011–13, in comparison to previous editions of the study. The current results illustrate that a core set of SCM academic institutions consistently retain strong research productivity, ranking in the top 10 across decades. However, there is significant variability in the remaining top 25 in comparison to previous editions, which is corroborated by an analysis of the concentration (i.e., diversity) of authors in the discipline that indicates that a greater number of authors and institutions continue to contribute SCM publications. However, this diversity is concentrated primarily among North American institutions as international institutions are not increasing publication productivity in the established journal set. Ultimately, the combined results provide a benchmark of the current status of the SCM discipline and present insights into its continued maturation.