Douglas and Wind (1987) Challenge the View Held by Levitt

Douglas and Wind (1987) challenge the view held by Levitt that a global approach is necessary. Which of the following constitute part of Douglas and Wind's argument? Please select all that apply.

A) Economies of scale are not so necessary anymore because of improved technology and greater potential for flexibility.
B) Consumer tastes are not as homogeneous as Levitt suggested.
C) Cost reduction is becoming more and more necessary.
D) The standard of living is increasing in most parts of the world.