In an industry with network effects and differentiated products, it is possible for the industry to become an oligopoly if
A. a few firms reap most of the sales gains resulting from positive market feedback.
B. they engage in a zero-sum game.
C. they use a kinked demand curve model.
D. they use a price-leadership model.
Answer: A
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Explain what social overhead capital is
What will be an ideal response?
The intersection of the demand curve and the marginal-cost curve is equivalent to the socially-optimal level of output
a. true b. false
In Figure 45.4, it is clearly the case that 
Figure 45.4
A. the total amount paid to workers is greater under perfect competition than unionization. B. every individual worker is better off under unionization than perfect competition. C. every individual worker is better off under perfect competition than unionization. D. the total amount of labor employed is greater under perfect competition than unionization.
Once the federal funds rate hits zero, a central bank seeking to stimulate its economy further must turn to unconventional monetary policies.
Answer the following statement true (T) or false (F)