Essential Graphs for Microeconomics provides a comprehensive overview of key economic concepts through visual representations. It covers critical topics such as the Production Possibilities Curve, demand and supply dynamics, consumer and producer surplus, and the effects of taxes. This resource is ideal for students studying microeconomics, particularly those preparing for exams or seeking to understand market structures and efficiencies. The document includes various graphs illustrating concepts like allocative and productive efficiency, long-run costs, and the law of diminishing returns, making it a valuable tool for visual learners. Perfect for AP Microeconomics students and anyone interested in economic theory.

Key Points

  • Illustrates the Production Possibilities Curve and its implications for efficiency.
  • Explains consumer and producer surplus with graphical representations.
  • Covers the effects of taxes on demand and supply curves.
  • Details long-run costs in perfectly competitive and monopolistic markets.
newtopiccyclegrowin
12 pages
AP® Microeconomics
newtopiccyclegrowin
12 pages
AP® Microeconomics
418
/ 12
Essential Graphs for Microeconomics
Basic Economic Concepts
Production Possibilities Curve
Nature & Functions of Product Markets
Demand and Supply: Market clearing equilibrium
Floors and Ceilings
Variations:
Shifts in demand and supply caused by
changes in determinants
Changes in slope caused by changes in
elasticity
Effect of Quotas and Tariffs
Concepts:
Points on the curve-efficient
Points inside the curve-inefficient
Points outside the curve-unattainable
with available resources
Gains in technology or resources
favoring one good both not other.
D
S
P
Q
P
e
Q
e
P
e
Q
e
D
S
Q
Q
D
Q
S
Floor
• Creates surplus
• Q
d
<Q
s
P
e
Q
e
D
S
Q
Q
S
Q
D
Ceiling
• Creates shortage
• Q
d
>Q
s
F
A
C
B
Good Y
D
E
W
Good X
Consumer and Producer Surplus
Effect of Taxes
Theory of the Firm
Short Run Cost
Price
buyers
pay
P
S
D
2
D
1
Q
Price
sellers
receive
Price
w/o
tax
Consumer
surplus
D
S
P
Q
P
e
Q
e
Producer
surplus
A tax imposed on the BUYER-demand
curve moves left
elasticity determines whether buyer or
seller bears incidence of tax
shaded area is amount of tax
connect the dots to find the triangle
of deadweight or efficiency loss.
A tax imposed on the SELLER-supply
curve moves left
elasticity determines whether buyer
or seller bears incidence of tax
shaded area is amount of tax
connect the dots to find the triangle
of deadweight or efficiency loss.
S
2
S
1
D
1
Price
buyers
pay
P
Q
Price
sellers
receive
Price
w/o
tax
AFC declines as output increases
AVC and ATC declines initially, then
reaches a minimum then increases (U-
shaped)
MC declines sharply, reaches a
minimum, the rises sharply
MC intersects with AVC and ATC at
minimum points
When MC> ATC, ATC is falling
When MC< ATC, ATC is rising
There is no relationship between MC and
AFC
P/C
Q
MC
ATC
AVC
AFC
Long Run Cost
Perfectly Competitive Product Market Structure
Long run equilibrium for the market and firm-price takers
Allocative and productive efficiency at P=MR=MC=min ATC
Imperfectly Competitive Product Market Structure: Pure Monopoly
MC
P
Q
Q
e
MR=D=AR=P
P
e
y
D
S
P
Q
P
e
Q
e
Variations:
Short run profits, losses and shutdown cases caused by shifts in market demand and
supply.
ATC
Q
Economies
of Scale
Diseconomies
of Scale
Constant
Returns
to Scale
Q
D
MR
ATC
MC
P
Q
Q
FR
Q
SO
Q
P
D
MR
ATC
MC
P
m
Q
m
P
FR
P
SO
Single price monopolist
(price maker)
Earning economic profit
Natural Regulated Monopoly
Selling at Fair return ( Q
fr
at P
fr
)
/ 12
End of Document
418

You May Also Like

FAQs

What is the Production Possibilities Curve and its significance?
The Production Possibilities Curve (PPC) illustrates the maximum feasible output combinations of two goods given available resources and technology. Points on the curve represent efficient production levels, while points inside indicate inefficiency, and points outside are unattainable. The PPC helps demonstrate concepts like opportunity cost and trade-offs, making it essential for understanding resource allocation in microeconomics.

How do taxes affect consumer and producer surplus?
Taxes imposed on buyers shift the demand curve leftward, reducing consumer surplus as buyers pay higher prices. Conversely, taxes on sellers shift the supply curve leftward, decreasing producer surplus as sellers receive lower prices. The area between the demand and supply curves represents the tax burden, leading to a deadweight loss in market efficiency. Understanding these effects is crucial for analyzing market interventions.

What are the characteristics of perfectly competitive markets?
Perfectly competitive markets are characterized by many buyers and sellers, homogeneous products, and free entry and exit. In such markets, firms are price takers, meaning they accept the market price as given. Long-run equilibrium occurs when firms earn normal profits, with price equating to marginal cost and average total cost at its minimum. This leads to allocative and productive efficiency, where resources are optimally allocated.

What is the law of diminishing returns?
The law of diminishing returns states that as additional units of a variable resource are added to a fixed resource, the marginal product will eventually decline. Initially, adding more workers may increase output significantly, but over time, the additional output gained from each new worker decreases. This concept is crucial for understanding production efficiency and cost management in microeconomics.

How do externalities affect market efficiency?
Externalities occur when the actions of individuals or firms have unintended effects on third parties, leading to market inefficiencies. Negative externalities, like pollution, result in overallocation of resources, while positive externalities, such as education, lead to underallocation. These discrepancies highlight the need for government intervention to correct market failures and achieve a socially optimal level of production.