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Models in AP Economics. adapted from Sally Meek Sally.meek @pisd.edu. Production Possibility Frontier or Curve. Increasing Cost. Increasing opportunity costs. Good X. Good Y. Production Possibility Frontier. Production Possibility Frontier or Curve. Constant Cost.
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Models in AP Economics adapted from Sally Meek Sally.meek@pisd.edu
Production Possibility Frontier or Curve Increasing Cost
Increasing opportunity costs Good X Good Y Production Possibility Frontier
Production Possibility Frontier or Curve Constant Cost
Constant opportunity costs Good X Good Y Production Possibility Frontier
Radios Radios Country B Country A 3 2 12 4 Wheat Wheat Using PPFs and comparative advantage
P S P1 D Q Q1 Supply and Demand Model
Demand • Changes in: • Taste and preference • Related Goods: • Δ in prices = Δ in demand for other goods • complements or substitutes • Income • Buyer numbers • Expectations • Supply • Changes in: • Technology • Related Goods: • Δ in prices = Δ in • supply of other goods • complements or • substitutes • Input Costs • Competitor numbers • Expectations Non-price determinants
Market Welfare CS=consumer surplusPS=producer surplus
P S CS P1 PS D Q1 Q Market Welfare CS=consumer surplusPS=producer surplus
P ATC MC AVC Q Cost structure for a firm
$ ATC MC P MR=d AVC P1 MR=d1 P2 MR=d2 Q loss Q profit Q The Firm – Perfect competition
P P S MC ATC P MR=d ATC D Q Q Q Q The Market and the PC Firm inthe short run
P P MC S1 LRATC P1 MR=d1 D Q1 Q1 Q Q The Market and the PC Firm in the long run: no economic profits
$ LRATC Q The Firm
P P MC ATC ATC D MR Q Monopoly Q
Monopolistic Competitive Firm Short Run
P MC P ATC ATC D MR Q Monopolistic Competitionshort run
Monopolistic Competitive Firm Long Run
P MC P=ATC LRATC D MR Q Monopolistic Competitionlong run
Blue Mart North South North $900, $1,800 $3,000, $3,500 Red Shop South $5,000, $4,000 $1,500, $1,000 1st entry in cell is Red Shop’s daily profits and 2nd entry is Blue Mart’s Oligopoly and game theory
Blue Mart North South North $900, $1,800 $3,000, $3,500 Red Shop South $5,000, $4,000 $1,500, $1,000 1st entry in cell is Red Shop’s daily profits and 2nd entry is Blue Mart’s Oligopoly and game theory
Factor Market—Perfect Competition Market and Firm
W W S labor W S=MRC D labor MRP=d Q Q Q labor Q labor Perfect Competition in the Factor Market
MRC W S W1 MRP q1 Q labor Monopsony
Externalities Negative Externality and Internalized Scenario
MSC P MPC dwl MPB Q Qm Qs Negative production externality ExternalitiesQm=market quantityQs =Socially optimal quantity
Externalities Positive Externality and Internalized Scenario
P MPC dwl MSB MPB Qm Qs Q ExternalitiesQm=market quantityQs =Socially optimal quantity Positive consumption externality
$ MC or MSC MB or MSB Q Q Allocative efficiency Allocative Efficiency