The constraint X1 + X2 ? 1 with 0 -1 integer programming allows for either X1 or X2 to be a part of the optimal solution, but not both

________ channel conflict occurs between channel members at the same level

A) Horizontal B) Vertical C) Multichannel D) Administrative E) Contractual

Which of the following types of brands are also known as store brands?

A) generics B) value brands C) private labels D) national brands