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For example, business effects are greater than year effects by about factor 45 when using variance and by about only factor 8 when using standard deviation.
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Conversely, the variance in performance is for about one third related to differences between business with the other two-thirds related to other effects (e.g.
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A finding of 36% for business effects means that the variance in business effects is 36% of the total variance in performance.
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[3] For example, sampling more businesses in the same number of industries will change the ratio of sum of squares due to industry and sum of squares due to business.
Works Cited
[‘1. Rumelt, R. P., Schendel, D. E., & Teece, D. J. (1994). Fundamental Issues in Strategy: A Research Agenda. Harvard Business School Press, Boston.
2. ^ Nag, Rajiv; Hambrick, Donald C.; Chen, Ming-Jer (2007). “What is strategic management, really? Inductive derivation of a consensus definition of the field”. Strategic Management Journal. 28 (9): 935–955. doi:10.1002/smj.615. ISSN 1097-0266.
3. ^ Jump up to:a b c Vanneste, Bart S. “How Much Do Industry, Corporation, and Business Matter, Really? A Meta-Analysis”. Strategy Science. 2 (2): 121–139. doi:10.1287/stsc.2017.0029. ISSN 2333-2050.
4. ^ Rumelt, Richard P. (1991). “How much does industry matter?”. Strategic Management Journal. 12 (3): 167–185. doi:10.1002/smj.4250120302. ISSN 1097-0266.
5. ^ Brush, Thomas H.; Bromiley, Philip (1997). “What Does a Small Corporate Effect Mean? A Variance Components Simulation of Corporate and Business Effects”. Strategic Management Journal. 18 (10): 825–835. ISSN 0143-2095.
6. McGahan, A. M. & Porter, M. E (1997). “How much does industry matter, really?” Strategic Management Journal, 18(S1): 15–30. https://www.jstor.org/stable/3088208
(2018 Award Recipient of The Dan and Mary Lou Schendel Best Paper Prize)
7. Rumelt, R. (1991). “How much does industry matter?” Strategic Management Journal, 12(3): 167–185. https://doi.org/10.1002/smj.4250120302
8. Vanneste, B. S. (2017). “How much do industry, corporation, and business matter, really? A meta-analysis.” Strategy Science, 2(2): 121–139. https://doi.org/10.1287/stsc.2017.0029
Photo credit: https://www.flickr.com/photos/calliope/510897767/’]

