1 Michael E. Porter) 20 positioning 2 petition operational effective- ness strategy time-petition reengineering strategic posi- tioning 20 80 productivity frontier 3 Lotus Notes 10 anization 20 80 50 R.R. Donnelley & Sons Quebecor World Color Press Big Flower Press 20 80 7 % 1995 4 . 6 % 5 15 737 Ikea 25 5 6 8 6 variety-based posi- tioning Jiffy Lube International mutu- al fund Circuit City Stores CarMax CarMax 7 Vanguard Group index fund needs-based positioning Bessemer pany 500 14 Citibank 25 lender 1 : 125 9 Delta Air Lines 17 NC- 17 JC J.C.Penney Sears straddling Continental Airlines Continental Lite trade-offs 10 Neutrogena Corporation PH Ivory Soap