Chapter 11 (public Goods and Common Resources).ppt - 11 Public Goods and Common Resources PRINCIPLES OF Microeonomics N Gregory Mankiw 1 In this chapter

Chapter 11 (public Goods and Common Resources).ppt - 11...

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11 Public Goods and Common Resources Microeonomics P R I N C I P L E S O F P R I N C I P L E S O F N. Gregory Mankiw N. Gregory Mankiw 1
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In this chapter, In this chapter, look for the answers to these look for the answers to these questions: questions: What are public goods? What are common resources? Give examples of each. Why do markets generally fail to provide the efficient amounts of these goods?How might the government improve market outcomes in the case of public goods or common resources? 2 2
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3 Introduction We consume many goods without paying: parks, national defense, clean air & water. When goods have no prices, the market forces that normally allocate resources are absent. The private market may fail to provide the socially efficient quantity of such goods. One of the Ten Principles from Chapter 1: Governments can sometimes improve market outcomes.
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4 Important Characteristics of Goods A good is excludable if a person can be prevented from using it. Excludable : fish tacos, wireless internet access Not excludable : FM radio signals, national defense A good is rival in consumption if one person’s use of it diminishes others’ use. Rival : fish tacos Not rival : An MP3 file of Kanye West’s latest single
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5 The Different Kinds of Goods Private goods : excludable, rival in consumption Example: food Public goods : not excludable, not rival Example: national defense Common resources : rival but not excludable Example: fish in the ocean Club Goods/ Natural monopolies : excludable but not rival Example: cable TV
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A road is which of the four kinds of goods? Hint : The answer depends on whether the road is congested or not, and whether it’s a toll road or not. Consider the different cases. A C T I V E L E A R N I N G A C T I V E L E A R N I N G 1 1 Categorizing roads Categorizing roads 6 6
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