Economics, 6th, Parkin, 2004, Chapter 9: ???? [?1?]

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Part 4
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Chapter 9
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Economics, 6th, Parkin, 2004, Chapter 9 ????
?1?
2
9-1
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Economics, 6th, Parkin, 2004, Chapter 9 ????
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9-1
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Economics, 6th, Parkin, 2004, Chapter 9 ????
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4
9-1
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????(economic profit)

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Economics, 6th, Parkin, 2004, Chapter 9 ????
?4?
5
?9.1 ????
9-1
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??? 400,000
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? ? 80,000
? ? 20,000
???? 120,000
???? 10,000
Economics, 6th, Parkin, 2004, Chapter 9 ????
?5?
6
?9.1 ????
9-1
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?????? 230,000
???????? 40,000
?????????? 20,000
???? 25,000
???? 50,000
?????? 135,000
??? 365,000
???? 35,000
Economics, 6th, Parkin, 2004, Chapter 9 ????
?6?
7
9-1
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1. ???????????,??????
2. ????-???????
Economics, 6th, Parkin, 2004, Chapter 9 ????
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9-1
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3. ??????????????
4. ??????????
5. ??????????,?????????????
Economics, 6th, Parkin, 2004, Chapter 9 ????
?8?
9
9-1
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• ?? (technology)

• ?? (information)

• ?? (market)

Economics, 6th, Parkin, 2004, Chapter 9 ????
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10
9-2
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Economics, 6th, Parkin, 2004, Chapter 9 ????
?10?
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9-2
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????(technological efficiency)
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???? (economic efficiency)
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Economics, 6th, Parkin, 2004, Chapter 9 ????
?11?
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9-2
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?9.2 ????????????10????
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A ????? 1 1,000
B ????? 10 10
C ????? 100 10
D ???? 1,000 1
Economics, 6th, Parkin, 2004, Chapter 9 ????
?12?
13
? ? ? ?
9-2
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?9.3 ????10??????????????
(a)??????????
? ? ????(?? 75??) ????(?? 250??) ??? ?1? ??? ??
A 75 250,000 250,075 25,007.50
B 750 2,500 3,250 325.00
C 7,500 2,500 10,000 1,000.00
D 75,000 250 75,250 7,525.00
Economics, 6th, Parkin, 2004, Chapter 9 ????
?13?
14
? ? ? ?
9-2
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?9.3 (b) ????????????????
? ? ????(?? 150??) ????(?? 1??) ??? ?1? ??? ??
A 150 1,000 1,150 115.00
B 1,500 10 1,150 151.00
D 150,000 1 150,001 15,000.10
Economics, 6th, Parkin, 2004, Chapter 9 ????
?14?
15
? ? ? ?
9-2
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?9.3 (c) ????????????????
? ? ????( ?? 1?? ) ????( ?? 1,000?? ) ??? ?1? ??? ??
A 1 1,000,000 1,000,001 100,000.00
B 10 10,000 10,010 1,001.00
D 1,000 1,000 2,000 200.00
Economics, 6th, Parkin, 2004, Chapter 9 ????
?15?
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9-3
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???? (command system)
???? (incentive system)
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Economics, 6th, Parkin, 2004, Chapter 9 ????
?16?
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9-3
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Economics, 6th, Parkin, 2004, Chapter 9 ????
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9-3
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Economics, 6th, Parkin, 2004, Chapter 9 ????
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?9.4 ??????????
9-3
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Economics, 6th, Parkin, 2004, Chapter 9 ????
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?9.4 ??????????
9-3
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Economics, 6th, Parkin, 2004, Chapter 9 ????
?20?
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?9.4 ??????????
9-3
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Economics, 6th, Parkin, 2004, Chapter 9 ????
?21?
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9-4
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1. ????
2. ?????
3. ? ?
4. ? ?
Economics, 6th, Parkin, 2004, Chapter 9 ????
?22?
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9-4
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???? (perfect competition)
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Economics, 6th, Parkin, 2004, Chapter 9 ????
?23?
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9-4
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????? (monopolistic competition)
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?????(product differentiation)
Economics, 6th, Parkin, 2004, Chapter 9 ????
?24?
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9-4
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?? (oligopoly)
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Economics, 6th, Parkin, 2004, Chapter 9 ????
?25?
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9-4
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?? (monopoly)
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Economics, 6th, Parkin, 2004, Chapter 9 ????
?26?
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9-4
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• ????????

• Herfindahl-Hirschman??

Economics, 6th, Parkin, 2004, Chapter 9 ????
?27?
28
9-4
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????????? (four-firm concentration ratio)
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Economics, 6th, Parkin, 2004, Chapter 9 ????
?28?
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?9.5 ?????
9-4
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? ? ? ? ? ? ? ? ? ?
? ? ??( ???? )
???? 200
ABC?? 250
???? 150
XYZ?? 100
????? 700
??10??? 175
??? 875
Economics, 6th, Parkin, 2004, Chapter 9 ????
?29?
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?9.5 ?????
9-4
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? ? ? ? ? ? ? ? ? ? ? ?
? ? ? ?( ???? )
???? 2.5
???? 2.0
???? 1.8
???? 1.7
????? 8.0
??10??? 1592.0
??? 1600.0
Economics, 6th, Parkin, 2004, Chapter 9 ????
?30?
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9-4
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Herfindahl-Hirschman?? ( ??HHI) ?50??????????????
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Economics, 6th, Parkin, 2004, Chapter 9 ????
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32
9-4
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Economics, 6th, Parkin, 2004, Chapter 9 ????
?32?
33
?9.6 ????
9-4
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Economics, 6th, Parkin, 2004, Chapter 9 ????
?33?
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?9.6 ????
9-4
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? ? ???? ????? ? ? ? ?
??? 0 ? ? 100
HHI ??100 100999 ??1000 10,000
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Economics, 6th, Parkin, 2004, Chapter 9 ????
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35
9-5
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Economics, 6th, Parkin, 2004, Chapter 9 ????
?35?
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