*1 Martin Chenard, Course on…Advanced Direct Marketingより許可を得て転用。Copying Ó2002 by Advanced Marketing Strategies, Inc. & Martin Chenard, Blowing Rock, North Carolina, U.S.A. e-mail:abscorpl@
*2 Richard Foster & Sarah Kaplan, Creative Destruction: Why Companies That Are Built to Last Undeperform the Market--And How to Successfully Transform Them (Doubleday/Currency), PP.13