A firm announces that in order to purchase a Blu-ray player, its customers must also purchase 10 Blu-rays. This is an example of:
A. a tie-in sale.
B. monopoly pricing.
C. price discrimination.
D. predatory pricing.
Answer: A
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The marginal cost curve is U-shaped. Over the range of output for which the marginal cost is falling as output increases, the marginal product is
A) increasing. B) decreasing. C) constant. D) probably changing, but there is no stable relationship between the marginal cost and the marginal product. E) not defined.
Which one of the following is a way to get out of a repeated Prisoner's Dilemma Nash Equilibrium?
a. Make sure that your competitor clearly understands your actions and intentions b. Make sure that your competitor keeps guessing about your actions and intentions c. Make sure you keep your actions and intentions ambiguous d. All of the above
Use the following table to answer the question below: The amount of total output produced from various combinations of labor and capital. 
If capital is fixed at three units, how much does the fourth unit of labor add to total output?
A. 16 B. 28 C. 36 D. 34 E. none of the above
In wealthy countries such as the United States, the price elasticity of the demand for food is ________ it is in poorer countries.
A. greater than B. less than C. the same as D. None of these; it is not possible to make international comparisons of price elasticity.