Lecture 3: Free Markets, Voluntary Exchange, and Money
Lecture 3: Free Markets, Voluntary Exchange,
and Money
Check the course website frequently. Read the announcement on religious holidays!
EC101 DD & EE / Manove Market System>Money
p 1
Economics Systems
Different cultures have different economic systems...
...with different rules or codes of behavior.
EC101 DD & EE / Manove Economic Concepts>Economic Systems
p 2
In some places, the entire economy works like the army: orders are passed down from the top.
In other places, the economy is completely decentralized: families run their own businesses any way they want.
Some standard examples of economic systems are:
Feudalism and Serfdom The Command Economy ( the former Soviet Union) Free Market System
But many other economic systems have been described.
[Read about the Incas (A) in the course Schedule.]
EC101 DD & EE / Manove Economic Concepts>Economic Systems
p 3
Basic Economic Choices
As a group, economic agents must make a
number of important economic choices:
What to produce How to produce it
Production decisions
Who gets the outputs Who provides the inputs
Distribution decisions
In different economic systems, these decisions are made in different ways.
EC101 DD & EE / Manove Economic Concepts>Economic Choices
p 4
Free-Market System
In the free-market economic system, most economic activity is voluntary-- induced by economic incentives.
Production
voluntary activity of private firms.
Distribution
voluntary exchange
EC101 DD & EE / Manove Free-Market System
p 5
Example: Shanu's Pizza Palace
Shanu opens a pizza restaurant (voluntary production).
She leases space, buys ovens (voluntary exchange).
She hires workers at $12/hour (voluntary exchange).
They produce pizza (voluntary production).
Shanu sells pizza to customers (voluntary exchange).
EC101 DD & EE / Manove Free-Market System>Example
p 6
Real Free-Market Economies
Most countries, even countries with communist governments, now have free-market economies.
They rely mainly on the voluntary economic activities of households and private firms.
But real free-market economies also include
involuntary private exchange and production government production, induced by a combination
of political and economic incentives
EC101 DD & EE / Manove Free-Market System>EC101
p 7
Involuntary Economic Activities
Example: Shanu's Pizza Palace (again)
Shanu must pay taxes to the local government, but she receives police protection (involuntary exchange).
The local health authorities require her to keep her restaurant kitchen very clean (involuntary production).
She must not allow smoking in her restaurant (involuntary restriction on exchange).
EC101 DD & EE / Manove Free-Market System>Deviations
p 8
Government Production
Example: Even in the US, governments operate many firms.
universities schools hospitals the post office transportation companies transportation infrastructure public services the military
EC101 DD & EE / Manove Free-Market System>Countries
p 9
EC101 DD & EE / Manove Clicker Question
p 10
The Free-Market System and EC 101
Real free-market economies are difficult to analyze.
So in EC101 we spend a lot of time on the free-market model.
In the model, all economic activities are private and voluntary (arising from economic incentives).
The model may help us understand the real world.
But the results of the model aren't always realistic.
EC101 DD & EE / Manove Free-Market System>EC101
p 11
Voluntary Exchange
Voluntary exchange is usually used in freemarket economies to distribute outputs and inputs.
Households, firms and governments sell and buy (exchange) goods and services.
Voluntary exchange usually increases the welfare of both parties, or, at least, doesn't normally decrease it,...
...because people don't tend to do things voluntarily that make them worse off.
Most voluntary exchange takes place in markets.
EC101 DD & EE / Manove Market System>Voluntary Exchange
p 12
Markets
Markets are "meeting places" for voluntary exchange.
Traditional markets Supermarkets
NASDAQ: a virtual meeting place
EC101 DD & EE / Manove Market System>Voluntary Exchange>Markets
p 13
Some markets are diffuse and exist in many places simultaneously.
market for petroleum
(one market worldwide)
US labor market
(one market or many?)
EC101 DD & EE / Manove Market System>Voluntary Exchange>Markets
p 14
Voluntary Exchange Examples
Example 1:
You have
but prefer
I have
but prefer
Outcome:
EC101 DD & EE / Manove Market System>Voluntary Exchange>Examples
p 15
Example 2: You have
and prefer
I have
Outcome:
and prefer
EC101 DD & EE / Manove Market System>Voluntary Exchange>Examples
p 16
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