EC120 Lecture Notes - Lecture 1: Progressive Tax, Opportunity Cost, Marginal Cost

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17 Jan 2018

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EC120 – Chapter 1: Ten Principles of Economics

- What is Economics all about?

1. “ait: The liited atue of soiet’s esoues.

2. Economics: The study of how society manages its scarce resources. It includes how people

decide what to buy and how much work, save and spend. It is about how firms decide like

how much to produce and how workers to hire. It is also about how society decides such as

how to allocate (divide) resources between competing interests (national defence,

consumer goods, protecting the environment, and other needs).

- Microeconomics: A branch of economics to study the behavior of consumers and producers.

- Microeconomic Tools: Vocabulary, graphical analysis and relying heavily on math.

THE PRINCIPLES OF HOW PEOPLE MAKE DECISIONS:

- Principle 1: People Faces Tradeoffs:

1. Thee is o suh thig as a fee luh – Milton Friedman

2. All decisions involve tradeoffs:

• Labour/Leisure tradeoff: Working longer hours (results in more money) leaves less time

for leisure (spending money).

• Study/Party tradeoff: Going to a party the night before midterm leaves less time for

studying.

3. Society faces an important tradeoff: Efficiency vs. Equity

• Efficiency: When society gets the most from its scarce resources.

• Euit: Whe pospeit is distiuted oe fail aog soiet’s ees.

4. Hypothetical Tradeoff: To achieve greater equity, we could redistribute income from

wealthy to poor.

• Redistribution generally accomplished through a progressive tax system and social

programs.

• Earned income provides and incentive to work. (Tax reduce the incentive to work)

• Wokig less loe podutiit shiks the size of the eooi pie.

- Principle 2: The Cost of Something Is What You give Up to Get It:

1. Making decisions requires comparing the costs and benefits of alternative choices.

• Opportunity cost: of any item is whatever must be given up to obtain it.

• The cost of using a resource for one purpose is the benefits forgone from the highest-

valued alternative use.

• Opportunity cost is the relevant cost for decision making.

2. Examples of opportunity cost:

• Going to college for a year is the forgone wages.

• Allocating another dollar of government budgets to health care is one less dollar to

allocate to another program.

• Going to a movie is the value of the time you spend in the cinema.

3. Rational People:

• Systematically and purposefully do the best they can to achieve their objectives, given

their constraints.

• Make decisions by evaluating costs and benefits of marginal changes.

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Ec120 chapter 1: ten principles of economics. What is economics all about: (cid:272)a(cid:396)(cid:272)it(cid:455): the li(cid:373)ited (cid:374)atu(cid:396)e of so(cid:272)iet(cid:455)"s (cid:396)esou(cid:396)(cid:272)es, economics: the study of how society manages its scarce resources. It includes how people decide what to buy and how much work, save and spend. It is about how firms decide like how much to produce and how workers to hire. It is also about how society decides such as how to allocate (divide) resources between competing interests (national defence, consumer goods, protecting the environment, and other needs). Microeconomics: a branch of economics to study the behavior of consumers and producers. Microeconomic tools: vocabulary, graphical analysis and relying heavily on math. Principle 1: people faces tradeoffs: (cid:862)the(cid:396)e is (cid:374)o su(cid:272)h thi(cid:374)g as a f(cid:396)ee lu(cid:374)(cid:272)h(cid:863) milton friedman, all decisions involve tradeoffs: Incentive: something to induce a person to act such as a reward or punishment. Rational people responds to incentives (because they weight costs and benefits): examples of marginal changes:

Related Questions

Microeconomics Multiple choice questions. Please answer all the questions.

1. Scarcity:
A. exists because resources are limited while human wants are unlimited.
B. means we are unable to have as much as we would like to have.
C. will likely be eliminated as technology continues to expand.
D. is not an issue addressed in economics.

2. People are forced to make choices because of:
A. unlimited wants and unlimited resources.
B. limited wants and unlimited resources.
C. unlimited wants and limited resources.
D. limited wants and limited resources.
E. irrational wants and limited resources.

3. Which of the following is closest to the definition of capital?
A. c and e.
B. c and d.
C. Tools, equipment, means of transportation
D. Factories and machinery.
E. Borrowed money.

4. Which one of the following is the most accurate definition of economics?
A. Economics is the study of stocks and bonds.
B. Economics is the study of how people allocate unlimited resources.
C. Economics is the study of how consumers choose to spend their income.
D. Economics is the study of how society chooses to allocate scarce resources.

5. The basic difference between macroeconomics and microeconomics is:
A. microeconomics concentrates on individual markets while macroeconomics focuses primarily on international trade.
B. microeconomics concentrates on the behavior of individual consumers while macroeconomics focuses on the behavior of firms.
C. microeconomics concentrates on the behavior of individual consumers and firms while macroeconomics focuses on the performance of the entire economy.
D. microeconomics explores the causes of inflation while macroeconomics focuses on the causes of unemployment.

6. Which of the following is not a resource?
A. Land.
B. Labor.
C. Money.
D. Capital.

7. Which of the following would an economist classify as capital?
A. 100 shares of Microsoft stock.
B. $50 bill.
C. credit card.
D. lawyer's personal computer.

8. Economics, according to its definition, studies how people:
A. earn and spend money.
B. invest in the stock and bond markets.
C. make choices in the face of scarcity.
D. supply goods in response to demand.

9. Which of the following is the best example of a microeconomic topic?
A. The impact that the money supply has on inflation.
B. The reasons for increases in the price of soft drinks.
C. The effect that federal budget deficits have on the interest rate.
D. The tradeoff between inflation and unemployment.

10. Which of the following is a macroeconomics topic?
A. Wages of textile workers in the Northeast.
B. The cost of producing 10,000 bookcases.
C. The economy's annual growth rate.
D. National demand for fish.
E. Effects of farm subsidies on food prices.

11. An economic theory claims that a rise in gasoline prices will cause gasoline purchases to fall, Ceteris paribus. The phrase "Ceteris paribus" means that:
A. other relevant factors like consumer incomes must be held constant.
B. the gasoline prices must first be adjusted for inflation.
C. the theory is widely accepted but cannot be accurately tested.
D. consumers' need for gasoline remains the same regardless of the price.

12. An economic model is:
A. a plastic scaled version of the economy.
B. a complete depiction of reality.
C. an abstraction from reality.
D. applicable to consumer behavior but not to producer behavior.
E. not an accepted tool of the economics profession.

13. Which of the following sayings best reflects the concept of opportunity cost?
A. "You can't teach an old dog new tricks."
B. "There is no such thing as a free lunch."
C. "I have a baker's dozen."
D. "There's no business like show business."

14. The opportunity cost of watching television is:
A. all of the alternative programs that appear on other stations.
B. zero because there is no money expenditure involved.
C. the alternative use of the time foregone by watching the program.
D. zero if it benefits you.

15. Which of the following does not illustrate opportunity cost?
A. If I study, I must give up going to the football game.
B. If I buy a computer, I must do without a 35" television.
C. More consumer spending now means more spending in the future.
D. If I spend more on clothes, I must spend less on food.

16. When deciding whether to buy a second car, marginal analysis indicates that the purchaser should compare the:
A. benefits expected from two cars with the cost of both.
B. additional benefits expected from a second car with the cost of the two cars.
C. dollar cost of the two cars with the potential income that the cars will generate.
D. additional benefits of the second car with the additional cost of the second car.

17. According to marginal analysis, you should spend more time studying economics if the extra benefit from an additional hour of study:
A. is positive.
B. outweighs the extra cost.
C. exceeds the benefits of the previous hour of study.
D. will raise your exam score.

1/ All the problems studied in economics arise from

a. the unequal distribution of income

b. the scarcity of resources

c. inappropriate government action

d. overpopulation

e. war

2/ The overall performance of the economic system as a whole is the focus of

a. macroeconomics

b. public economics

c. international finance

d. labor economics

e. microeconomics

3/ After graduating from high school, Steve had the following three choices for his immediate future, listed in order of preference: (1) attend our campus, (2) work in a printed circuit board factory, or (3) attend a rival college. His opportunity cost of going to college here includes which of the following?

a. The income he could have earned at the printed circuit board factory plus the direct cost of attending college here (tuition, textbooks, etc.)

b. The benefits he could have received from going to the rival college.

c. Only the tuition and fees paid for taking classes here.

d. Cannot be determined from the information given.

e. The cost of books and supplies at the rival college.

4/ The question of scarce resources and unlimited wants are addressed in

a. psychology

b. history

c. anthropology

d. political science

e. economics

5/ Consider an economic model designed to analyze the purchasing decisions of households. An assumption that a household chooses between only two goods would be an example of an

a. positive assumption

b. simplifying assumption

c. macroeconomic assumption

d. financial assumption

e. critical assumption

6/ Which of the following explains why economists may disagree over normative issues?

a. They have different beliefs and values.

b. They often employ different statistical techniques when examining data.

c. Some work only on microeconomic issues, while others focus exclusively on macroeconomic issues.

d. They examine the same data to draw their conclusions.

e. They need to disagree to publish their research findings.

7/ Suppose your friends take you out for dinner on your birthday, and you have a much better time than you would have had to do anything else. There is still an opportunity cost, even though they will not let you pay for anything. True/False

8/ Microeconomics

a. addresses scarcity from a global perspective

b. is purely theoretical and has little value in explaining real-world phenomena

c. focuses on what is happening in the economy as a whole

d. examines how individuals, households, and firms make economic decisions

e. answers the fundamental economic questions of how, when, where, and why.

9/ People and organizations have to make choices about how to allocate time and money because

a. religious values conflict with economics

b. time and money are both scarce

c. government require it

d. there are unlimited resources

e. corporations control our lives

10/ The objective of an economic model is to

a. yield a better understanding of important relationships

b. use simplifying assumptions to make positive economic statements

c. be an accurate description of reality

d. predict real-world occurrences with complete accuracy

e. use basic principles of economics to derive fundamental assumptions about human behavior.

jaderaven304

1.The production possibilities frontier can be used to demonstrate which of the following?
(i) The best tradeoffs that individuals and societies should make
(ii) The tradeoffs forced on individuals and societies because of scarcity
(iii) The wealth maximizing output combination that an individual or society should choose

Select one:

a. (ii) only

b. (i), (ii) and (ii)

c. (i) only

d. (iii) only

2. Unlimited wants and limited resources:

Select one:

a. Can be overcome through innovation

b. Are not problems faced by wealthy industrialized nations

c. Necessitate choices about the goods to services to consume

d. Can be overcome by increasing wealth

3. What are the two sub-fields of economics?

Select one:

a. For-profit economics and not-for-profit economics

b. Private markets and the public sector

c. Microeconomics and macroeconomics

d. Market and non-market economics

4. What do economists mean by "self-interested behavior"?

Select one:

a. It means undertaking activities that benefit yourself and a small group of others who are important to you

b. It means undertaking activities motivated by greed

c. It means undertaking activities that maximize one's own welfare

d. It means wanting to pursue a life of leisure

5. When economists say that people act rationally, they mean that:

Select one:

a. People do not make incorrect choices

b. People are governed by what others think about them and act accordingly

c. People consider the significant consequences of their actions and make decisions that further their self-interests

d. There are certain common codes of conduct that everyone adheres to

6. Which of the following actions reflect self-interested behavior?
(i) Warren Buffett, one of the world's wealthiest individuals, donated more than $30 billion to humanitarian causes such as AIDS and tuberculosis initiatives.
(ii) Pfizer Inc., a private pharmaceutical company, sponsored a disease-management program for Florida's Medicaid patients with chronic illnesses such as asthma, diabetes and heart disease.
(iii) You agree to babysit your 8-year-old brother instead of going to a kick-boxing class.
(iv) You agree to babysit your 8-year-old brother instead of going to a kick-boxing class only if your mother pays you $8 an hour.

Select one:

a. All of the above actions except (iii)

b. All of the above actions

c. (ii) and (iii) only

d. (iv) only

7. Which of the following does not qualify as a market?

Select one:

a. Bloomingdales Department Store

b. The underground drug trade

c. Amazon.com

d. The French Immigration Department

8. Which of the following is not a key assumption of economics?

Select one:

a. People do not undertake activities that make others better off

b. People are self-interested

c. People have limited resources to acquire their wants

d. People are rational

9. Which of the following is not likely to cause the production possibility frontier to shift out?

Select one:

a. An increase in the quantity of innovations

b. An increase in specialization which allows people to develop higher levels of skill at their chosen profession

c. Developing markets where self-interested individuals can interact

d. Relying only on governments to allocate resources

10. Which of the following statements is false?

Select one:

a. Scarcity affects everyone, including very wealthy people

b. Rational people never make mistakes

c. Economists assume people are rational

d. Economists assume people have unlimited desires

11. Which of the following statements is false?

Select one:

a. When you volunteer to help at a soup kitchen, you face an opportunity cost of your time

b. Mother Teresa faced trade-offs when deciding to help lepers in India rather than some other needy group

c. Economics brings tradeoffs to light but does not inform us of which trade-offs society should make

d. When the government funds research into cancer, it is able to avoid trade-offs because public funds are used rather than private funds

12. Which of the following topics does economics study: (i) the study of human behavior; (ii) the market for organ transplants; (iii) cost and benefits of building a suicide barrier in the Golden Gate Bridge; (iv) the functioning of political institutions.

Select one:

a. (i) and (iii) only

b. (ii) and (iii) only

c. All of the topics listed

d. All of the topics except (iv)

13. Which the following would be likely to raise your opportunity cost of going to college full-time?
(i) You have been offered a full-time job as wardrobe assistant to Paris Hilton that pays $60,000 per year.
(ii) You have been offered a merit scholarship that pays for two years of tuition.
(iii) Your landlord increases the rent on the apartment you are currently living in and will continue to live in even if you choose to attend college full-time.
(iv) An increase in the value of your college trust fund set up by your grandfather.

Select one:

a. All of the above

b. (i) and (iii) only

c. All of the above except (ii)

d. (i) only

14. While microeconomics is concerned with the behavior of individuals and firms, macroeconomics:

Select one:

a. Does not make use of "micro" ideas such as opportunity cost or self-interest

b. Is concerned with the performance of entire economies

c. Is concerned with normative matters such as fairness, equality and ethics

d. Is only concerned with government activity

15. You own a Ford car that has lousy gas mileage. You finally trade it for a Hyundai, which is equal in virtually every aspect except that the Hyundai gets much better mileage. What is likely to happen to your gas consumption?

Select one:

a. I get better gas mileage and since the cost of driving has gone down, I will drive more so my gas consumption will remain the same

b. It will fall since I will now use less gas

c. I get better gas mileage and since the cost of driving has gone down, I will drive more so the effect on my gas consumption is indeterminate

d. It will go up since I will now drive more

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EC120 Lecture Notes - Lecture 1: Progressive Tax, Opportunity Cost, Marginal Cost

EC120 Full Course Notes

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