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Unit 1: The Market System diagrams
Straight line PPC
Curved PPC
Consumer
goods
Consumer
goods
Capital goods
Capital goods
Shifts of PPC
Outward
Consumer
goods
Inward
Pivot
Consumer
goods
Capital goods
Consumer
goods
Capital goods
Short run ATC
Costs
MC
SRATC
Output
Capital goods
Long run ATC
SRATC1
Costs
SRATC2
SRATC3
LRATC
Minimum efficient
scale of production
Output
Diseconomies of scale
outweigh economies of scale
Economies of scale outweigh
diseconomies of scale
Supply and demand equilibrium
Price
S
P
D
Q
Quantity
Shifts of D
S
Price
S
D’
P
P’
D
Price
P’
P
D
Q Q’
D’
Quantity
Q’ Q
Quantity
Shifts of S
Price
S’
S
Price
P’
P
P
P’
D
Q Q’
Quantity
S
S’
D
Q’ Q
Quantity
Consumer surplus
Producer surplus
Price
Price
S
P
S
P
D
D
Quantity
Inelastic demand
Quantity
Elastic demand
Price
Price
D
D
Quantity
Inelastic supply
Price
Quantity
Link between PED and TR
S
Price
D is elastic
PED = 1
Unitary elasticity
D is inelastic
D
Quantity
Q
Elastic supply
Price
S
Quantity
Total
revenue
TR
Quantity