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Two approaches to the measurement of firm diversification are compared: (1) continuous SIC-based product count measures and (2) categorical measures as popularized by Rumelt. The measures are found...
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Cynthia A. Montgomery (Tue,) studied this question.
synapsesocial.com/papers/6a109b7dd91177df95fce7c1 — DOI: https://doi.org/10.2307/255992
Cynthia A. Montgomery
Northwestern University
Academy of Management Journal
University of Michigan
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