2 Bartlett, John. (1992). Bartlett’s Familiar Quotations, 16th edition; Justin Kaplan, general editor.
3 Hauser, John, and Gerald Katz. “Metrics: You are What You Measure,” European Management Journal, Volume 16 No 5 October 1998.
4 Kaplan, Robert S., and David P. Norton. (1996). Balanced Scorecard, Boston, MA: Harvard Business School Press.
5 Brady, Diane, with David Kiley and Bureau Reports, “Making Marketing Measure Up,” Business Week.
6 Strictly speaking, all the numbers can contain some error. Share may be estimated, for example, from retail sales to consumers. Sales might come from shipment to retailers.
7 Barwise, Patrick, and John U. Farley. (2003). “Which ...