What is the usual shape of a marginal revenue curve for a monopolist? Why?

ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
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  1. What is the usual shape of a marginal revenue curve for a monopolist? Why?
  2. When a monopolist identifies its profit-maximizing quantity of output, how does it decide what price to charge?
  3. Is a monopolist allocatively efficient? Why or why not?
  4. ALCOA does not have the monopoly power it once had. How do you suppose their barriers to entry were weakened?
  5. For many years, the Justice Department has tried to break up large firms like IBM, Microsoft, and most recently Google, on the grounds that their large market share made them essentially monopolies. In a global market, where U.S. firms compete with firms from other countries, would this policy make the same sense as it might in a purely domestic context?
  6. If public utilities are a natural monopoly, what would be the danger in deregulating them?
  7. Why does regulatory capture reduce the persuasiveness of the case for regulating industries for the benefit of consumers?
  8. In the middle of the twentieth century, major U.S. cities had multiple competing city bus companies. Today, there is usually only one and it runs as a subsidized, regulated monopoly. What do you suppose caused the change?
  9. Use the following market shares to calculate the four-firm concentration ratio for the U.S. auto market. Does this indicate a concentrated market or not?

    GM 19%

    Ford 17%

    Toyota 14%

    Chrysler 11%

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