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Graphic
The current graphic with various colors and shapes seems more misleading. Do we need permission from Porter's publishers to recreate something close to the graphics on p. 4 in Competitive Strategy and p. 6 in Competitive Advantage or even the funky one on p. 141 of the 1979 article? --Jeffmcneilltalkcontribs 06:40, 5 March 2007 (UTC)
I agree- the graphic is not the one I have seen used before. If someone has the original it should be placed here. NP 11/26/07 6:24p PST —Preceding unsigned comment added by 71.204.144.85 (talk) 02:24, 28 November 2007 (UTC)
The graphic does not comply with the description of horizontal and vertical forces described in the introduction of the topic — Preceding unsigned comment added by 89.184.165.2 (talk) 12:45, 6 March 2013 (UTC)
