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Lectures in Microeconomics-Charles W. Upton Models of Monopolistic Competition

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The Hotelling Model Bathers scattered along the beach. 0 1

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Models of Monopolistic Competition The Hotelling Model Bathers scattered along the beach. Two ice cream vendors, charging the same price for the same product. 0 1

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Models of Monopolistic Competition The Hotelling Model Bathers scattered along the beach. Two ice cream vendors, charging the same price for the same product. People will go to the closer vendor 0 1

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Models of Monopolistic Competition The Hotelling Model Bathers scattered along the beach. Two ice cream vendors, charging the same price for the same product. People will go to the closer vendor Where should the vendors locate? 0 1

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Models of Monopolistic Competition The Right Solution The right solution is to locate one at ¼ and the other at ¾ 0 11/4 3/4

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Models of Monopolistic Competition The Right Solution The right solution is to locate one at ¼ and the other at ¾ This minimizes bathers travel costs to get a cone. 0 11/4 3/4

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Models of Monopolistic Competition The Actual Solution In fact, they will locate just at the middle. 0 1

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Models of Monopolistic Competition The Actual Solution In fact, they will locate just at the middle. If either vendor moves away, he will lose market share. 0 1

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Models of Monopolistic Competition The Actual Solution For example, if one vendor moved back to ¼, he would lose sales. 0 1

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Models of Monopolistic Competition The Hotelling Model Also applies to political campaigns. Explains why politicians move to the center. 0 1

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Models of Monopolistic Competition Attribute Spaces Tartness Caffeine

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Models of Monopolistic Competition Attribute Spaces Tartness Caffeine X Y

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Models of Monopolistic Competition Attribute Spaces Tartness Caffeine X Y

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Models of Monopolistic Competition Attribute Spaces Tartness Caffeine X Y If Y raises his price, he loses attribute space

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Models of Monopolistic Competition Attribute Spaces Other colas with different combinations of tartness and caffeine will enter the market.

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Models of Monopolistic Competition Attribute Spaces Tartness Caffeine X Y Z

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Models of Monopolistic Competition Attribute Spaces Other colas with different combinations of tartness and caffeine will enter the market. –Each time a cola enters, prices decline and fixed costs rise.

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Models of Monopolistic Competition Attribute Spaces Other colas with different combinations of tartness and caffeine will enter the market. –Each time a cola enters, prices decline and fixed costs rise. –This process will continue until manufacturers are earning zero profits.

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Models of Monopolistic Competition Attribute Spaces Other colas with different combinations of tartness and caffeine will enter the market. Economists refer to this as non-price competition

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Models of Monopolistic Competition End ©2005 Charles W. Upton

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