1. Common Sense Economics What Everyone Should Know About Wealth & Prosperity by James Gwartney, Richard Stroup, and Dwight Lee CommonSenseEconomics.com
10 Key Elements
of Economics
CommonSenseEconomics.com

2. Ten Key Elements of Economics
Build a bridge between common sense and economic applications.
Provide a solid foundation in economic reasoning.
Apply common sense to help readers make strategic consumption, savings, investment, career, and voting choices.
Explain why people cooperate in order to help themselves prosper and their nations grow.
CommonSenseEconomics.com

3. 10 Key Elements of Economics
Incentives matter.
10 Key Elements of Economics
CommonSenseEconomics.com

4. What Are Incentives?
Incentives are factors that encourage or discourage various types of behaviors, actions or activities.
Changes in incentives alter the way people behave.
Incentives influence behavior at all levels- personal, familial, business, government, and national.
CommonSenseEconomics.com

5. Gasoline Prices…
When gas prices rise, do you have an incentive to change your behavior?
When do you stop talking and start acting?
How can you change your behavior in the short-run?
How can you alter it in the long-run?
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6. Incentives: Producers and Consumers
What is the main incentive of the producer?
Provide consumers with what they value the most while covering their costs of production and making a profit.
What is the incentive of the consumer?
Get the most of what they value from their expenditures.
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7. Volunteerism…
Incentives matter to everyone, including volunteers and charitable organizations.
What incentives do volunteers have? Are they only monetary?
Describe some incentives offered to encourage people to volunteer, donate blood and assist Habitat for Humanity in the building of houses.
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8. There is no such thing as a free lunch.
10 Key Elements of Economics
CommonSenseEconomics.com

9. The Condition of Scarcity
Our resources are limited…but our desires for goods and services are NOT.
Something is scarce if it has more than one valuable use. Consider your time.
When resources are used to do one thing, they are unavailable to do others.
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10. To Choose Is To Sacrifice
Scarcity forces us to make choices.
Choosing an action means we sacrifice doing something else.
The opportunity cost of a choice is the value of what is given up.
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11. There Is No Such Thing As A Free Lunch
What if a financial planner offers to buy you lunch?
You incur no money cost but you sacrifice time that could have been used to do something else.
The value of your next best option is the opportunity cost of going to the “free” lunch.
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12. 3. Decisions are made at the margin.
10 Key Elements of Economics
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13. Marginalism… Few, if any, decisions are “all-or-nothing”.
Marginal means additional or one more.
We are constantly facing marginal choices.
To get the most out of our resources, we should only take an action when the additional benefits are greater than the additional costs.
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14. Marginal Decision Examples…
How much do you clean your house or room?
Do you clean until 100% of the dirt and clutter has been removed when its just you and no company is expected?
Do you clean until 100% of the dirt and clutter has been removed when you expect company?
You clean as long as the marginal costs are less than the marginal benefits!
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15. Apply Marginal Thinking To
Weeding an overgrown garden
Cleaning up a polluted stream
Picking up litter along the highway
Eating pizza
Eating at an “All You Can Eat” buffet
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16. 4. Trade promotes economic progress.
10 Key Elements of Economics
CommonSenseEconomics.com

17. People Gain When They Trade
Trade (Voluntary Exchange)
Moves goods and services from people who value them less to people who value them more.
Makes larger output and consumption possible by allowing us to specialize in doing what we do best.
Makes larger output and lower per-unit costs possible as a result of mass production.
Trade leads to larger output and higher income levels.
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18. Discuss how trade effects the well being of the trading partners in the following scenarios.
Flea Market
eBay
Garage sales
International trade between the U.S. and Mexico
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19. 5. Transaction costs are an obstacle to trade.
10 Key Elements of Economics
CommonSenseEconomics.com

20. Transaction Costs
Transaction costs: resources spent when making an exchange or transaction.
Buyers and sellers spend scarce resources when they
Search for exchange partners
Locate product information
Negotiate the terms of trade
Finalize and formalize contracts and agreements
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21. Why are there transaction costs?
Physical obstacles
Movement of goods from sellers to buyers
Scarcity of information
Locate buyers and sellers; assess their reputation; and find best deals
Political obstacles
Taxes, tariffs, quotas, licensing requirements, and other regulations
Middlemen
List a few types.
Describe how they impact the costs of transacting in a complex world.
CommonSenseEconomics.com

22. 6. Profits direct business toward activities that increase wealth.
10 Key Elements of Economics
CommonSenseEconomics.com

23. Profits: Friend or Foe?
People are better off if their resources are directed toward the production of goods and services valued highly relative to costs.
Users should be encouraged to undertake productive projects.
Profits and losses perform this function.
Profits provide rewards to those who transform resources into goods and services that are valued more than costs.
Losses impose a penalty on the unproductive use of resources.
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24. Losses Are Important!
A T-shirt factory has total production cost of $20,000.
1,000 T-shirts can be sold at $22 each. This production results in a $2,000 profit.
Consumers value the T-shirts more than the resources required for their production.
What if these shirts could be sold for only $17 each? What is the total sale price? Is there loss or a profit?
This loss of $3000 indicates that the T-shirts are worth less to consumers than the resources required to produce them.
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25. 7. People earn income by helping others.
10 Key Elements of Economics
CommonSenseEconomics.com

26. Earning Income What do you have to do to earn a high income?
Explain why you need others to earn a high income?
How do you know that others value the services or goods you provide?
Explain why high earnings come from providing goods and services that others value.
What do you have to do to earn a high income? Provide goods and services that others value.
Explain why you need others to earn a high income? They purchases the goods and services you provide.
How do you know that others value the services or goods you provide? Their willingness to pay.
Explain why high earnings come from providing goods and services that others value.
CommonSenseEconomics.com

27. Income Variation College students are rewarded for studying.
Star athletes and entertainers are rewarded for their specialized skills.
Entrepreneurs are rewarded for their productive innovations and risk-taking.
Why does Tiger Woods earn more than a nurse?
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28. 10 Key Elements of Economics
8. Economic progress comes primarily through trade, investment, better ways of doing things, and sound economic institutions.
10 Key Elements of Economics
CommonSenseEconomics.com

29. What is Economic Progress?
Americans produce and earn THIRTY TIMES more now than colonists did in 1750.
What contributed to this economic progress?
Why is this progress important?
CommonSenseEconomics.com

30. Sources of Economic Growth
Investments in productive assets
Physical capital (tools, machines, computers, and buildings) and human capital (education, vocational training, and professional development)
Entrepreneurial discoveries and improvements in technology
Cotton gin, assembly line, refrigerators, telephone, polio vaccine, microwave, minicomputer, and artificial heart
Improvements in economic organization
Rule of law, even handed enforcement, competitive markets, limited government and money of stable value
CommonSenseEconomics.com

31. 10 Key Elements of Economics
9. The “invisible hand” of market prices directs buyers and sellers toward activities that promote the general welfare.
10 Key Elements of Economics
CommonSenseEconomics.com

32. Invisible What? Adam Smith, The Wealth of Nations (1776)
“It is his own advantage, indeed, and not that of society which he has in his view. But the study of his own advantage naturally, or rather necessarily, leads him to prefer that employment which is most advantageous to society…He intends only his own gain, and he is in this, as in many other cases, led by an invisible hand to promote an end which was not part of his intention.”
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33. What Is the Invisible Hand?
Through price signals, the primary function of markets is to provide information to buyers and sellers.
The invisible hand of market prices directs millions of self-interested individuals into cooperative action and brings their choices into line with each other.
Friedrich von Hayek
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34. Price Signals and the Invisible Hand
By pursuing self-interests in markets, individuals help others and everyone is made better off.
Who is made better off when consumers buy MP3 players?
How do consumers indicate how much they value MP3 players?
How do MP3 manufacturers relate production costs to consumers?
Do the MP3 consumers and producers ever meet to swap information on consumer preferences and production costs?
What makes this possible?
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35. 10 Key Elements of Economics
10. Too often long-term consequences, or the secondary effects, of an action are ignored.
10 Key Elements of Economics
CommonSenseEconomics.com

36. Secondary Effects or Long Range Consequences
A person
“…must trace not merely the immediate results but the results in the long run, not merely the primary consequences but the secondary consequences, and not merely the effects on some special group but the effects on everyone.”
- Henry Hazlitt [1979]
Economics in One Lesson
CommonSenseEconomics.com

37. Unintended Consequences
Well intended actions have secondary effects that impact others. Discuss the secondary effects of:
Rent controls designed to make housing affordable for the poor.
Tariffs and quotas designed to protect domestic industries.
Government projects designed to increase employment in construction.
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38. If policymakers have good intentions
Will their actions lead to desirable outcomes?
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