第 6 章 市场结构和企业行为
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Transcript of 第 6 章 市场结构和企业行为
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6
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6.1++
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6.26.2.1perfect competitionpure competition 1 2 3 4
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6.2.21
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6.2.212 TR=PQ AR=TR/Q=PQ/Q=P MR=P
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6.2.22 =TRTCTRTC
=0MRMC=0MR=MCP=MR P=MC3
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6.2.31PAC AVCshut-down pointAVCEMC
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6.2.31AVC
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6.2.322
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6.2.41 P=LAC 2 P=MR=LMC
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6.2.41
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6.2.51constant-cost industryLAC 2increasing-cost industry LAC 3diminishing-cost industry LAC
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6.2.51
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6.2.52
- 6.2.6P=ACACP=MCPMCP>MCP
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6.3 6.3.1perfect monopoly1234
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6.3.1 perfect monopoly112natural monopoly 3 4
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6.3.2m MR=SMC P*abc
MR=LMC
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6.3.31: 1 2P>MC2 1 2
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6.4 6.4.1(monopolistic competition) 121 23
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6.4.2MRMR=MCQ*DP*,P*abc
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6.4.31 P=LAC2 MR=LMC
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6.4.4
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6.4.5LAC
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6.5 6.5.1oligopoly 1
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6.5.1oligopoly 12
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6.5.2kinked demand curveMCMRMR
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6.5.3price leadership P* MRL= MCL DTSF DL MCF
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6.5.3price leadership
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6.5.4Cartel MC1=MC2==MCN
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OPEC12197319734197410/197930/1973OPECOPEC
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OPECOPEC19721501974800
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OPECOPEC80OPECOPECOPEC7030/198610OPEC
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9ABC Q=30002P TC=250000650QQP
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1123ABCABC0
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2Q=30002PTR=PQ=1500QQ2/2 MR=1500QTC=250000650QAC=250000/Q650 MC=6501MR=MC 1500Q/2=650 Q=850 P=1075 =1112502 MR=1500Q0 Q=1500 P=7503Q=x2PP=X/2Q/2MR= X/2Q P=AC X/2Q/2= AC=250000/Q650 MR=MCX/2Q=650Q=707X=2714 P=1003.5Q=27142P
- 310D1P1=85Q1 0
- 4D1P1=85Q1 TR1=85Q1 Q1MR1=852Q1MR2=1308Q2TC=37525Q0.6Q2MC=251.2QMR1=MC852Q1 =251.2Q1 Q1=18.75 > 15Q2=11.4