What is Economics?

1. What is Economics? Chapter 1

2. What is Economics? Economics is about how people choose to use scarce resources to satisfy their needs and wants i.e. achieve goals

3. Needs vs. Wants Needs Wants Something like air, food or shelter that is necessary for survival An item we desire but that is not essential to survival

4. Needs vs. Wants Are these needs or wants?

5. Needs vs. Wants • Are these needs or wants?

6. Goods • The products created on Aquarius Island are goods. Goods are physical objects such as clothes or shoes.

7. Services • Services are actions that one person performs for another

8. All Resources are Scarce • All resources, especially on Aquarius Island are scarce. Scarcity is limited resources to meet unlimited wants.

9. Scarcity vs. Shortage • A shortage is a situation in which a good or service is unavailable. Sometimes a producer cannot or will not offer a good or service. • Shortages are temporary • Goods are scarce because resources are scarce. On your island, you did not have unlimited papaya because papaya is scarce.

10. Scarcity • Our resources are insufficient to achieve all our goals and all or wants • We cannot have everything we want • Using economic reasoning, i.e. making choices, we can get more from our resources

11. Factors of Production Factors of production are the resources used to make goods and services (land, labor, capital, entrepreneur)

12. Factors of Production • Land is all natural resources used to make goods and services (land, coal, water, wood, etc.)

13. Factors of Production • Labor is the effort people devote to a task for which they are paid

14. Factors of Production Capital is any human made resource that is used to produce other goods and services

15. Factors of Production Physical Capital Human Capital Human made objects that create goods or services (buildings, tools, factories.) These things make us more productive The knowledge or skills a worker gains through education and experience

16. Factors of Production • Entrepreneurship combines all resources to produce a new good or service

17. Factors of Production Entrepreneur's are ambitious leaders who combines land and capital to create and market new goods and services

18. Guns or Butter • Guns or Butter- If a country decides to produce more military goods (guns) then they will have fewer resources to devote to consumer goods ex. Health care, education (butter) • vs

19. Trade-offs vs. Opportunity Costs Trade-Offs Opportunity Costs Are an alternative we sacrifice when we make a decision Individual trade-offs: Work more, play less Business trade-offs: Produce more coconuts rather than papaya Is the most desirable alternative given up as the result of a decision Ex. You choose to make a life on Aquarius Island rather than try and escape

20. Thinking at the Margin Thinking at the margin means deciding how much more or less to do. Usually we don’t stay up all night to build shelter. We build part of it one day and build part of it the next day, that way you can still sleep

21. Cost and Benefit at the Margin • With cost and benefit at the margin, you have to look at how decisions affect how much you spend and how much you gain • When you sacrifice more than you gain, no more units should be added

22. Efficiency and Productivity • Remember, the goal of an economy is to be efficient. Efficiency is when an economy uses it’s resources in such a way as to maximize the production of goods and services. • Efficiency means increasing productivity!

23. Production Possibilities • Economists often use graphs to help show data. • A Production Possibilities Curve shows alternative ways to use an economy’s productive resources. • The Production Possibilities Frontier is a line on the graph that shows the maximum possible output. Each point on the graph represents a trade off.

24. Production Possibilities Using few resources than an economy is capable of using is underutilization

25. Production Possibilities • For every choice we make, there is a cost. • Law of Increasing Costs states that as we shift factors of production from making one good or service to another, the cost of producing the second item increases.