Mathematical Citation Quotient
Mathematical Reviews computes a "mathematical citation quotient" (MCQ) for each journal. Like the impact factor, this is a numerical statistic that measures the frequency of citations to a journal. The MCQ is calculated by counting the total number of citations into the journal that have been indexed by Mathematical Reviews over a five-year period, and dividing this total by the total number of papers published by the journal during that five-year period.
For the period 2004–2008, the top five journals in Mathematical Reviews by MCQ were:
- Acta Numerica — MCQ 3.43
- Annals of Mathematics — MCQ 2.97
- Journal of the American Mathematical Society — MCQ 2.92
- Communications on Pure and Applied Mathematics — MCQ 2.43
- Publications Mathématiques de l'IHÉS — MCQ 2.33
The "All Journal MCQ" is computed by considering all the journals indexed by Mathematical Reviews as a single meta-journal, which makes it possible to determine if a particular journal has a higher or lower MCQ than average. The 2009 All Journal MCQ is 0.28.
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