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Chapter 7 -- Carlos Pitta

Chapter 7 -- Carlos Pitta - Chapter 7 Consumers Producers...

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CHAPTER 7 CONSUMERS, PRODUCERS, EFFICIENCY OF MARKETS 1 Chapter 7 Consumers, Producers, and the Efficiency of Markets Instructor: Carlos Pitta
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CHAPTER 7 CONSUMERS, PRODUCERS, EFFICIENCY OF MARKETS 2 In this chapter, look for the answers to these questions: What is consumer surplus? How is it related to the demand curve? What is producer surplus? How is it related to the supply curve? Do markets produce a desirable allocation of resources? Or could the market outcome be improved upon?
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CHAPTER 7 CONSUMERS, PRODUCERS, EFFICIENCY OF MARKETS 3 Welfare Economics Recall, the allocation of resources refers to: how much of each good is produced which producers produce it which consumers consume it Welfare economics : the study of how the allocation of resources affects economic well-being First, we look at the well-being of consumers.
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CHAPTER 7 CONSUMERS, PRODUCERS, EFFICIENCY OF MARKETS 4 Willingness to Pay (WTP) A buyer’s willingness to pay for a good is the maximum amount the buyer will pay for that good. WTP measures how much the buyer values the good. name WTP Anthony $250 Chad 175 Flea 300 John 125 Example: 4 buyers’ WTP for an iPod
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CHAPTER 7 CONSUMERS, PRODUCERS, EFFICIENCY OF MARKETS 5 WTP and the Demand Curve Q: If price of iPod is $200, who will buy an iPod, and what is quantity demanded? A: Anthony & Flea will buy an iPod, Chad & John will not. Hence, Q d = 2 when P = $200. name WTP Anthony $250 Chad 175 Flea 300 John 125
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CHAPTER 7 CONSUMERS, PRODUCERS, EFFICIENCY OF MARKETS 6 WTP and the Demand Curve Derive the demand schedule: 4 John, Chad, Anthony, Flea 0 – 125 3 Chad, Anthony, Flea 126 – 175 2 Anthony, Flea 176 – 250 1 Flea 251 – 300 0 nobody $301 & up Q d who buys P (price of iPod) name WTP Anthony $250 Chad 175 Flea 300 John 125
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CHAPTER 7 CONSUMERS, PRODUCERS, EFFICIENCY OF MARKETS 7 $0 $50 $100 $150 $200 $250 $300 $350 0 1 2 3 4 WTP and the Demand Curve P Q d $301 & up 0 251 – 300 1 176 – 250 2 126 – 175 3 0 – 125 4 P Q
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CHAPTER 7 CONSUMERS, PRODUCERS, EFFICIENCY OF MARKETS 8 $0 $50 $100 $150 $200 $250 $300 $350 0 1 2 3 4 About the Staircase Shape… This D curve looks like a staircase with 4 steps – one per buyer. P Q If there were a huge # of buyers, as in a competitive market, there would be a huge # of very tiny steps, and it would look more like a smooth curve.
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CHAPTER 7 CONSUMERS, PRODUCERS, EFFICIENCY OF MARKETS 9 $0 $50 $100 $150 $200 $250 $300 $350 0 1 2 3 4 WTP and the Demand Curve At any Q , the height of the D curve is the WTP of the marginal buyer , the buyer who would leave the market if P were any higher. P Q Flea’s WTP Anthony’s WTP Chad’s WTP John’s WTP
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CHAPTER 7 CONSUMERS, PRODUCERS, EFFICIENCY OF MARKETS 10 Consumer Surplus (CS) Consumer surplus is the amount a buyer is willing to pay minus the buyer actually pays: CS = WTP P name WTP Anthony $250 Chad 175 Flea 300 John 125 Suppose P = $260.
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