Basic Economic Concepts
What is Economics in General?
• Economics is the science of scarcity.
• Scarcity is the condition in which our wants are
greater than our limited resources.
• Since we are unable to have everything we
desire, we must make choices on how we will
use our resources.
• In economics we will study the choices of
individuals, firms, and governments.
Economics is the study of _________.
choices
Examples:
You must choose between buying jeans or buying shoes.
Businesses must choose how many people to hire
Governments must choose how much to spend on welfare.
Economics Defined
Economics-Social science concerned with the
efficient use of limited resources to achieve
maximum satisfaction of economic wants.
(Study of how individuals and societies deal with
________)
scarcity
Keep in Mind…
“ In spite of the practical benefits,
economics is mainly an academic, not a
vocational, subject…economics is NOT
primarily a how-to-make-money area of
study.”
Micro vs. Macro
MICROeconomicsStudy of small economic units such as
individuals, firms, and industries (competitive
markets, labor markets, personal decision
making, etc.)
MACROeconomicsStudy of the large economy as a whole or in
its basic subdivisions (National Economic
Growth, Government Spending, Inflation,
Unemployment, etc.)
How is Economics used?
• Economists use the scientific method to make
generalizations and abstractions to develop
theories. This is called theoretical economics.
• These theories are then applied to fix problems
or meet economic goals. This is called policy
economics.
Positive vs. Normative
Positive Statements- Based on facts. Avoids value
judgements (what is).
Normative Statements- Includes value judgements
(what ought to be).
Thinking at the Margin
# Times
Watching Movie
Benefit
Cost
1st
2nd
3rd
Total
$30
$15
$5
$50
$10
$10
$10
$30
Would you see the movie three times?
Notice that the total benefit is more than the
total cost but you would NOT watch the movie
the 3rd time.
Marginal Analysis
In economics the term marginal = additional
“Thinking on the margin”, or MARGINAL ANALYSIS
involves making decisions based on the additional
benefit vs. the additional cost.
For Example:
You have been shopping at the mall for a half hour, the additional benefit of
shopping for an additional half-hour might outweigh the additional cost (the
opportunity cost).
After three hours, the additional benefit from staying an additional half-hour
would likely be less than the additional cost.
Marginal Analysis
Notice that the decision making process wasn’t
“should I go to the mall for 3 hours or should I stay
home”
In reality the decision making process started with
“should I go to the mall at all.”
Once you are there you thought “should I stay for
an additional half hour or should I go.”
The MARGINAL ANALYSIS approach to decision
making is used more often than the “all or nothing”
approach.
Marginal Analysis
Notice that the decision making process wasn’t
“should I go to the mall for 3 hours or should I stay
home”
You will continue to do
something
until
the
In reality the decision making process was
cost
“should I go to themarginal
mall at all.”
outweighs the marginal
Once you are there you
thought “should I stay for
benefit.
an additional half hour or should I go.”
The MARGINAL ANALYSIS approach to decision
making is more comely used than the “all or
nothing” approach.
5 Key Economic Assumptions
1. Society’s wants are unlimited, but ALL resources are
limited (scarcity).
2. Due to scarcity, choices must be made. Every choice
has a cost (a trade-off).
3. Everyone’s goal is to make choices that maximize
their satisfaction. Everyone acts in their own “selfinterest.”
4. Everyone acts rationally by comparing the marginal
costs and marginal benefits of every choice
5. Real-life situations can be explained and analyzed
through simplified models and graphs.
Given the following assumptions, make a rational
choice in your own self-interest (hold everything else
constant)…
1. You want to visit your friend for a weekend
2. You work every weekday earning $100 per day
3. You have three flights to choose from:
Thursday Morning Flight= $200
Thursday Night Flight = $275
Friday Early Morning Flight = $300
Which flight should you choose? Why?
Trade-offs and Opportunity Cost
ALL decisions involve trade-offs.
Trade-offs are all the alternatives that we give up
whenever we choose one course of action over
others.
(Examples: going to the movies)
The most desirable alternative given up as a result
of a decision is known as opportunity cost.
What are trade-offs of deciding to go to college?
What is the opportunity cost of going to college?
GEICO assumes you understand
opportunity cost. Why?
Trade-Offs
Opportunity Cost
Economic
Terminology
Utility = Satisfaction!
Marginal = Additional!
Allocate = Distribute!
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Scarcity vs. Shortages
•Scarcity occurs at all times for all goods.
•Shortages occur when producers will not or cannot
offer goods or services at current prices. Shortages
are temporary.
Price vs. Cost
What’s the price? vs. How much does that cost?
Price= Amount buyer (or consumer) pays
Cost= Amount seller pays to produce a good
Investment
Investment= the money spent by BUSINESSES to improve
their production
Ex: $1,000 new computer, $1 Million new factory
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Goods vs. Services
Give examples…
Goods= physical objects that satisfy needs and wants
•Consumer Goods- created for direct
consumption (example: pizza)
•Capital Goods- created for indirect
consumption (oven, blenders, knives, etc.)
•Goods used to make consumer goods
Services= actions or activities that one person
performs for another (teaching, cleaning,
cooking)
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The 4 Factors of
Production
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The Four Factors of Production
•Producing goods and services requires the use of
resources- DUH!.
•ALL resources can be classified as one of the
following four factors of production:
Land
Labor
Capital
Entrepreneurship
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The Four Factors of Production
Land = All natural resources that are used to produce
goods and services. Anything that comes from “mother
nature.” (Water, Sun, Plants, Oil, Trees, Stone, Animals,
etc.)
Labor = Any effort a person devotes to a task for which
that person is paid. (manual laborers, lawyers, doctors,
teachers, waiters, etc.)
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The Four Factors of Production
Two Types of Capital:
1. Physical Capital- Any human-made resource that
is used to create other goods and services (tools,
tractors, machinery, buildings, factories, etc.)
2. Human Capital- Any skills or knowledge gained
by a worker through education and experience
(college degrees, vocational training, etc.)
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The Four Factors of Production
• Entrepreneurship= ambitious leaders that combine the
other factors of production to create goods and services.
• Examples-Henry Ford, Bill Gates, Inventors, Store Owners,
etc.
Entrepreneurs:
1. Take The Initiative
2. Innovate
3. Act as the Risk Bearers
PROFIT
So they can obtain _________.
Profit= Revenue - Costs
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The Four Factors of Production
Classify the Factors of Production in the following scenario:
You decide to order a pizza to satisfy your wants. First,
you picked up the telephone and gave your order to the
owner that entered it into her computer. This information
came up on the chief baker’s monitor in the kitchen and he
assigned it to one of his cooks. The cook was busy mixing
dough out of salt, flour, eggs, and milk.
The cook finished mixing dough, washed his hands in
the sink, and prepared your pizza using tomato sauce, cheese,
and sausage. He then placed the pizza in the oven. Within 10
minutes the pizza was cooked and placed in a cardboard box.
The delivery person then grabbed your pizza, jumped in the
company car, and delivered it to your door.
The Four Factors of Production
Classify the Factors of Production in the following scenario:
You decide to order a pizza to satisfy your wants. First,
you picked up the telephone and gave your order to the
owner that entered it into her computer. This information
came up on the chief baker’s monitor in the kitchen and he
assigned it to one of his cooks. The cook was busy mixing
dough out of salt, flour, eggs, and milk.
The cook finished mixing dough, washed his hands in
the sink, and prepared your pizza using tomato sauce, cheese,
and sausage. He then placed the pizza in the oven. Within 10
minutes the pizza was cooked and placed in a cardboard box.
The delivery person then grabbed your pizza, jumped in the
company car, and delivered it to your door.
Accountants vs. Economists
Accountants look at only EXPLICIT COSTS.
•Explicit costs are the traditional “out-of pocket
costs” of decision making.
•Ex: Going to Disneyland
Economists look at the EXPLICIT COSTS and the
IMPLICIT COSTS.
•Implicit costs are the opportunity costs such as
forgone time and forgone income.
•Ex: Payton Manning leaves the NFL to open a
taco shop.
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WE HAVE A PROBLEM!!
The Economizing Problem…
Scarcity
Society has unlimited wants but limited resources
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