ࡱ>  Rbjbj[[ .99J hh8t,G:PPPP+2] iFFFFFFF$HKtF++FPPFPPFFADPĚ=<B"FF0,GBL~LDDD0L EqhJ#<_{qqqFFLqqq,GLqqqqqqqqqh : Fundamentals PART I I. What is Economics? A traditional definition of economics is "Economics is a science which studies human behavior as a relationship between ends and scarce means which have alternative uses." Lionel Robbins Another traditional definition comes from British economist Alfred Marshall: Economics is a study of mankind in the ordinary business of life. Yet another definition is that economics is the study of choice and its consequences or the study of choice under conditions of scarcity. Even when we study groups, remember that groups are made up of individuals. For example, the government should pay for education or Starbucks is putting Peets out of business The word economics comes from the Greek word oikonomia, which means "house management. I think the best definition is that economics is the study of exchange given certain institutional arrangements. Rules of the game matter! (i.e., property rights, rule of law, stability) Think of basketballI can beat a team of five NBA players by myself!! G. These questions will be answered differently based on the economic system (capitalism, socialism, communism, etc.) II. What is Economics About? The reality of life is that we must make choices! We would all love to have more of something, whether it is money, cars, a bigger house, people to date, vacation time, or even intangible things like love, peace, hate, violencewhatever gives you pleasure, or utility. The problem is that the resources that go into the things we want are limited. This concept of unlimited wants, limited resources is known as scarcity. Scarcity is present whenever there is less of a good or resource freely available from nature than people would like. Choice, the act of selecting among alternatives, is the logical consequence of scarcity. When we make choices, we constantly face trade-offs between meeting one goal or desire and another. Examples: *Do I go to the movies or do I study tonight? *Do I hang out or get into a serious relationship? *Go to SJSU or Boston University? *Spring BreakMexico or Arizona? *Travel during the summer or get a summer job? Resources (Factors of Production): the inputs people use to produce goods (tangible) and services (intangible) Land (Natural Resources) Labor (Human Resources) Capital Physical: tools, machines, buildings, factories Human: the knowledge, experience that humans attain Entrepreneurship: skills and talent used to bring together factors of production; the act of risk-taking Time Economist  HYPERLINK "http://www.tsowell.com/" Thomas Sowell points out that natural resources are important, but knowing how to use them productively is just as important. Primitive humans had the same natural resources at their disposal that we do today; however, the difference between our standard of living and theirs reflects the difference in the knowledge they could bring to bear on those resources versus what we can. Scarcity and Poverty Are Not The Same Scarcity is an objective concept, while poverty is a subjective concept. The difference between needs versus wants helps us understand why it is impossible to objectively define poverty. Even Bill Gates faces scarcity! Everybody wants more of something! Scarcity Makes Rationing a Necessity Rationing is a criterion which determines how goods or services will be allocated. Methods of rationing can be numerous including height, weight, age, particular skill, religion, race, or gender. More common examples in our society are first come, first served, lottery, and, of course, price. Scarcity Leads to Competitive Behavior Competition is a natural outgrowth of scarcity and the desire of human beings to improve their conditions. Competition exists in every economy and society. It doesnt matter if the goods are allocated by price or by political decision-making. How goods are rationed (allocated) will determine what competitive techniques people will use to get them. When the rationing device is price, individuals will engage in income-generating activities that enhance their ability to pay the price needed to buy the goods and services they want. Thus, one benefit of using price as a rationing mechanism is that it encourages individuals to engage in the production of goods and services to generate income. In contrast, other mechanisms either encourage individuals to waste their time waiting or waste their time by lobbying politicians; also, other mechanisms we talked about can be even more unfair than the ability to pay. L. Historical Note The foundation of economics was laid in 1776 when Scottish professor  HYPERLINK "https://en.wikipedia.org/wiki/Adam_Smith" Adam Smith published The Wealth of Nations. This is why he is known as the father of modern economics. He argued that the wealth of a country does not lie in the amount of gold and silver it had, but rather in the goods and services produced and consumed by people. Smith stressed that free exchange and competitive markets would harness self-interest as a creative force. Smith believed that people pursuing their own interest would be directed by an invisible hand of market prices toward the production of those goods that were most advantageous to society. "By directing that industry in such a manner as its produce may be of greatest value, 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 no part of his intention." His most famous quote from The Wealth of Nations is: "It is not from the benevolence of the butcher, the brewer, or the baker, that we can expect our dinner, but from their regard to their own interest." VIDEO CLIP: Stossel Steak PART II The Economic Way of Thinking Many people will claim after studying economics that much of what they learned is just plain common sense. However, when applied consistently, this economic way of thinking can provide powerful and, sometimes, counter-intuitive insights. Economic thinking is an approach, rather than a set of conclusions. As British economist  HYPERLINK "https://en.wikipedia.org/wiki/John_Maynard_Keynes" John Maynard Keynes stated: The Theory of Economics does not furnish a body of settled conclusions immediately applicable to policy. It is a method rather than a doctrine, an apparatus of the mind, a technique of thinking which helps its possessor to draw correct conclusions. But what is this technique of thinking? It can best be summarized as a set of concepts derived from one fundamental presupposition: All social phenomena emerge from the actions and interactions of individuals who are choosing in response to expected additional benefits and costs to themselves. Eight Guideposts to Economic Thinking The use of scarce resources is costly, so trade-offs must be made TANSTAAFL. This is why its nonsense to say free education or free health-care. There is no government Tooth Fairy out there providing these things. The government is the people (taxpayers) in society who have their resources confiscated for the benefit of others. The highest valued alternative that must be sacrificed (given up) is the opportunity cost of the option you have chosen. Another way of explaining opportunity cost is that it is what comes in second-place to what you have chosen. The common mistake made by students is that a person who can think of more things to do or maybe really does have more options to take advantage of has the higher opportunity cost of doing something. Christopher Christina 1. Class 1. Class 2. Sleep 2. Watching TV 3. Gym 3. Sleep 4. Shopping 5. Reading 6. Beach Just because Christina can think of more things to do or can take advantage of more opportunities other than being in class, does not mean she has more opportunity costs. Either way, because human beings are not omnipresent, we can only choose to do ONE thing. Therefore, the opportunity cost is the NEXT BEST thing a person would do if they werent doing what they were doing. Also note that their opportunity costs are different. Moreover, the cost of going to class can change from day to day. In economics, cost is always a forgone opportunity (Along Came Polly: VIDEO CLIP) Explicit (monetary outlays) v. Implicit (time) Finally, the only cost that matters in making a decision is future opportunity costs. Sunk costs are irrelevant! (i.e., movie, dinner example, or dating example) QUESTIONS: *What is the opportunity cost of increasing research for heart disease? *What is the cost of that Starbucks coffee you are drinking? What is the price? *Why is it that sometimes it is more expensive or it costs more to buy the same Starbucks coffee at different times even when the price of your favorite drink has not changed? *Why do you go out with certain people on a Monday but not Friday or Saturday? (or vice versa!) Individual choose purposefullythey try to get the most from their limited resources A more common way of saying this is that people try to get the biggest bang for their buck. We refer to this as economizing behavior. Side note: stereotyping as economizing on information When choosing among things of equal benefit, an economizer will select the cheapest or lowest cost option. We assume that people choose rationally. Rationality assumes that people will not purposefully choose actions that will leave them worse-off (homo economicus) Remember, decisions are subjective. You might not use cocaine or steroids, but the person who does is rational if he expects his subjective benefits to outweigh his subjective costs. EXAMPLES: Starbucks v. Folgers Bottle of water in the desert Cliffs Notes Diet pills/steroids Study guide Incentives Matterchoice is influenced in a predictable way by changes in incentives The more costly something become, people become less likely to choose it. People are motivated by a variety of goals, not just financial (this is a common charge made against economic analysis). Even an unselfish individual would be more likely to rescue a drowning child over a childs doll or that same child in a swimming pool compared to the rushing currents of Niagara Falls! Just how far can we push this? What if the price of funerals skyrocketed? What would you predict would happen to the number of funerals? Singapore and graffiti Beware of Dog sign or alarm company sticker on window Communal grading v. individual grades Individuals make decisions at the margin Utility Theory 1.) Utility: the want-satisfying power of a good or service 2.) Util: a representative unit by which utility is measured 3. Marginal Utility: the change in total utility due to a one-unit change in the quantity of a good or service consumed 4.) MU = Change in TU / Change in # of units consumed 5.) Law of Diminishing Marginal Utility (benefits, value): the principle that as more of any good or service is consumed, its extra benefit declines 6.) Increases in total utility from consumption of a good or service become smaller and smaller as more is consumed during a given time period When making a choice between two alternatives, individuals generally focus on the difference in the costs and benefits between alternatives. Marginal means the one additional or one extra. When you ask how much more is the Venti compared to the Grande? you are engaging in marginal decision-making. Remember, most of the choices we make are marginal, rather than all-or-nothing. For example, we dont make decisions between eating or wearing clothesdining well in the nude versus starving in style! Instead, we choose between having a little more food at the cost of a little less clothing, or a little of something else. So, the relevant comparison is not between the total values but the marginal values. Diamond-Water Paradox Things to Ponder Will I miss todays class? HINT: Is the opportunity cost of each class the same? Why dont vending machines allow you access like newspaper bins? Why do you not care so much about leaving the lights on in your hotel room? HINT: How is the bill calculated? Example from Undercover Economistdrinking in pubs Optimal punishment for coming home late Three strikes law GRAPH Total Utility, Marginal Utility GRAPH MB, MCFixing Your Face example Optimal time to do anything is where the MB of doing that something is equal to the MC of doing that something---when to stop studying, when to stop exercising, when to ask somebody out on a date, when to buy a car, when to propose Point to Ponder: What determines how much people are rewarded? You can turn this around and ask, Why is that teachers, firefighters, nurses, and policemen who are so important to society get paid so little compared to athletes and movie stars? Answer: depends on the value of their contributions to the welfare (well-being) of others as the latter see it and it depends on relative scarcity (think NBA, NHL, actors). At the margin, it is easier to become a teacher, nurse, firefighter, etc. than to be the next LeBron James, Tom Brady, Angelina Jolie, or Brad Pitt. Another way to explain this phenomenon is that professional athletes make high salaries because people with their skills are scarce. The demand and supply for people in various occupations determines the salaries in questionnot the importance of the job to society. This finding is similar to the finding that diamonds are very expensive (while useless in a practical sense) yet water is very cheap (but life sustaining). Although information can help us make better choices, its acquisition is costly When you go to buy a pair of jeans or car, you take time to search out what you want. However, you get to a point where the marginal benefits of searching get lower and lower and eventually are smaller than the marginal costs of additional searching. The Internet has reduced information search costs People are more likely to research a new car than a new can opener. Beware of the secondary effectsEconomic actions often generate indirect as well as direct effects In other words, beware of unintended consequences! Federal mandates on auto fuel efficiency standardsmore deaths and more congestion! VIDEO CLIPS: Boudreaux: Unintended Consequences Hazlitt I and II (VIDEO CLIPS: broken window fallacy) Stadiums (1 and 2) Stossel Farm Subsidies Stossel Flood Insurance The value of a good or service is subjective The test of a theory is its ability to predict Economics is considered a science because economists use empirical methods to test their assumptions. Advanced mathematical methods are used in more advanced courses to explain complex models. A model is a simplified representation of reality. A model does not have to be realistic to be useful. Positive and Normative Economics Positive Economics: What is statements or analysis; neutral or objective analysis, value-free economics. Normative Economics: Ought, Should; personal opinion is injected. Pitfalls to Avoid in Economic Thinking Violation of the Ceteris Paribus Condition Can Lead to Draw the Wrong Conclusion Ceteris paribus is a Latin term for other things constant. Only play with one variable Association is Not Causation Post hoc propter ergo hoc fallacy Every time I go to a Sharks game they win Every time I go to work the sun is out All drug users drank milk when they were young; therefore, drinking milk causes drug use. Fallacy of Composition The erroneous view that what is true for the individual must be true for the group as a whole Every time I stand up, I can see the ice better. Now, what if Shaq is in the seat in front of me? Good Intentions Do Not Necessarily Lead to Good Results (VIDEO CLIP: Boudreaux clip on unintended consequences) Divisions of Economics Macroeconomics: the branch of economics that focuses on how the aggregation of individual micro-units affects our analysis; it is the study of the big picture. Typical topics include inflation, unemployment, GDP, and Federal Reserve policywhat I call news economics. Microeconomics: the branch of economics that focuses on how human behavior affects the conduct of affairs within narrowly defined units, such as the individual, individual households, or business firms. Revealed Preference This is the notion that what you want is revealed by what you do, not by what you say. Actions speak louder than words. Before you complain about work or your relationship or whatever What a rip off! (more on this later when we talk about supply, demand, and prices) Starbucks Man in desert Question: Is it your right to have somebody elses property? Or, the flipside, do others owe you something? When you buy something on sale or when you accept a raise even though you would have still worked for you employer without one, arent you doing the ripping off? So, why is it ok when we are the buyer or when we are the sellers? When gas prices drop, why dont we write thank you letters? Actually, if gas stations can supposedly charge whatever they want, why dont they? Man in desert VI. Concluding Thoughts Orderliness out of chaos with no central plannerjust a few basic rules of the road. (i.e., think of rush hour traffic or the lines at a grocery store as a social cooperation!) VIDEO CLIP: Rinkonomics I, Pencil, the classic essay by Leonard Read shows that numerous exchanges take place among various people around the world without any central planner and yet resources get delivered and products get made (in this case a pencil) in an orderly fashion! VIDEO CLIPS: I, Pencil: Movie and I, Pencil: Spontaneous Order The grocery store is a miracle!! PART III The World of Trade-Offs Whenever resources are used for any activity, the user is sacrificing the opportunity to use those resources for other things The production possibilities curve/frontier (PPC/PPF) represents all possible maximum combinations of total output that could be produced Along the curve, there is a fixed quantity of productive resources of a given quality being used efficiently GRAPH PPC Assumptions Resources are fully employed Production is for a specific time period Resources are fixed for the time period Technology does not change over the time period What affects the shape of the curve (straight line or concave to the origin?) Economic Growth GRAPH (capital goods v. consumer goods, guns and butter) Interesting fact: economies where government intervention is the lowest (or starts to decline) tend to grow the most and the countries with the most government intervention (lots of rules, government ownership of resources, labor laws, restrictions on capital flow and foreign investment, tax burden, etc.) tend to be the poorestThe Index of Economic Freedom by The Heritage Foundation and The Fraser Institutes Economic Freedom of the World annual report by Dr. James Gwartney of Florida State, Dr. Robert Lawson of SMU, and Dr. Joshua Hall of West Virgnia University VIDEO CLIPS: Economic Freedom and Growth (Josh Hall) and Economic Freedom and a Better Life(Josh Hall)       IRV5 6 x y ·wi[NChhgrh"AB*phhhgrhE6B*phhhgrhE56B*phhhgrh^~56B*phh"Ah^~6 hhgrh^~hY/ hhgrh y6B*mH phsH hhgrh y6B*phh yh^~ hSh^~hhgrh^~B*phhhgrh^~6B*phh'h'h^~5h'h'5 h'h^~h'h^~5CJaJhRj5CJaJ ,-y       & Fgd$^gdS^gdWs & FgdWs & Fgd^~gd^~$a$gd^~     C N P |   D h u     ռxmiaiZiVhS h'hWs *hhgrhWshWshhgrhEB*phhhgrhE56B*phhhgrhE6B*phhE h yh y h y6]h yh ymH sH h ymH sH h yh^~hT *hhgrh^~6 h'h^~h &hhgrh"A5hhgrh"A56B*phhhgrh"A6B*phh"A  b   Bdenqyu!(,CQW[bd߰߬ߨwh@+h$56 h'hN|hsh*g/hThhgrhN|hN|5hN|h@+h$hf3 *hhgrh$hLh$>*hhgrh$>*B*phh'h$5 *hhgrh$5 h'h$ h'h^~h yh^~hS h'hS, 2|!Cd4<l  & FgdO & Fgd$ & Fgd$gdN|gd@+ & Fgd$!"34< ?@ANOu~¾著zvngcgh' h'hB *hhgrh$h7kh"Ah$6 *h@+h$0J5!j *h@+h@+5U *h@+h@+5j *h@+h@+5U h'hXnhOhLhhgrhOB*phh$hhgrhhgrhhgrB*phhhgrh$B*ph h'h$ *h@+h$5#. `4[Nr^gd7+ & FgdN| & Fgd7+ & FgdB$ ^$ gd7k & FgdB & Fgd$$ ^$ gdXn% %&,1AB[\dep6IJԽrf *h@+h7+0J5!j *h@+h@+5U *h@+h@+5j *h@+h@+5U h'h' h'hN|hf3hf3hf35hf3h7+5 h'h7+hHJ~hshB5hshhgrhThB5B*phhBh7k h'hBhhgrhBB*ph%mJXrstݽݠݖ{sk`TLh'OJQJh'h'5OJQJh'56OJQJh(jh(j5 *h(jh(j *h(jh(j5 h(j56h(jh'56h'h'56h'h'6h.56OJQJh.h'56h'h'56OJQJ *hhgrh'5h'h'5 h'h' *hhgrh7+ h'h7+hhgrh7+6B*phstY!""""#s$ & FgdB & FgdB8^8gd* & FgdBh^hgd7k & Fgd*gd*gd'^gd(jgd(jgd. & Fgd' ? 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