The practice of tying is illegal on the grounds that

a. it allows firms to expand their market power.
b. it allows firms to form collusive arrangements.
c. it prevents firms from forming collusive agreements.
d. the Sherman Act explicitly prohibited such agreements.


a

Economics

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Dr. X, an assistant professor at a large state university, is trying to decide how to allocate the 50 hours a week she spends working among the various activities expected of an assistant professor. The professor wants to maximize her raise next year and the table shows estimates of how time spent in each activity will contribute to her raise:  Given the above information, what is Dr. X's maximum possible raise if she works 50 hours?

A. $1860 B. $1845 C. $1495 D. $1600

Economics

Which of the following is correct?

A. Budget lines are linear and upsloping; indifference curves are downsloping and concave to the origin. B. Budget lines are linear and downsloping; indifference curves are downsloping and concave to the origin. C. Budget lines are linear and downsloping; indifference curves are downsloping and convex to the origin. D. Budget lines are downsloping and convex to the origin; indifference curves are linear and downsloping.

Economics

The average fixed cost curve

A. is a vertical line. B. is a horizontal line. C. slopes downward to the right as output rises. D. is U-shaped (it declines as output rises, reaches a minimum, and then rises).

Economics

When total revenue and price are directly related, demand is

A) unit-elastic. B) inelastic. C) elastic. D) not related.

Economics