Friday, April 16, 2010
Interpreting the Production Possibilities Curve
If you are a student in BBA2401-macroeconomics, you will find a test question coming from the below topic.
The production possibilities curve shows the effects of scarcity and choice in the economy as a whole. Three situations can be distinguished in figure 2, depending on whether if the production is in the shaded area, on the curve, or outside the curve.
First, imagine production at point I. This point, with 100 movies and 18,000 computers, is inside the curve. But the production possibilities curve tells us that it is possible to produce more computers, more movies, or both with the same amount of resources. For example, a talented movie directors may be working on a computer assemmbly because her short film was not yet been seen by studio executive, or perhaps a financial crisis has prevemted companies from getting loans and thus all production of computer chips.
As you can see, points inside the curve, like point I, are inefficient because the economy could produce a larger number of movies, as point D, or a larger number of computers as at point B. Points inside the production possibilities curve are possible, but they are inefficient.
Second, consider the points on the production possibilities curve. These points are efficient. They present the maximum amount that can be produced with available resources. The only way to raise the production of one good is to lower production of the other good. The points on the curve shows a tradeoff between one good and another.
Third, consider points to the right side and above production possibilities curve, like point J in Figure 2. These points are impossible. The economy does not have the resources to produce those quantities.
Monday, April 12, 2010
Unit I Key Terms
choice: a selection among alternative goods, services, or actions.
command economy: an economy in which the government determines prices and production; also called a centrally planned economy.
comparative advantage: a situation in which a person or group can produce one good at a lower opportunity cost than another person or group.
division of labor: the division of production into various parts in which different groups of workers specialize.
economic interaction: exchanges of goods and services between people.
economics: the study of how people deal with scarcity.
freely determined price: a price that is determined by the individuals and firms interacting in markets.
gains from trade: improvements in income, production, or satisfaction owing to the exchange of goods or services.
government failure: a situation in which the government makes things worse than the market, even though there may be market failure.
incentive: a device that motivates people to take action, usually so as to increase economic efficiency.
increasing opportunity cost: a situation in which producing more of one good requires giving up an increasing amount of production of another good.
international trade: the exchange of goods and services between people or firms in different nations.
market: an arrangement by which economic exchanges between people take place.
market economy: an economy characterized by freely determined prices and the free exchange of goods and services in markets.
market failure: any situation in which the market does not lead to an efficient economic outcome and in which there is a potential role for government.
opportunity cost: the value of the next-best forgone alternative that was not chosen because something else was chosen.
production possibilities: alternative combinations of production of various goods that are possible, given the economy's resources.
production possibilities curve: a curve showing the maximum combinations of production of two goods that are possible, given the economy's resources.
scarcity: the situation in which the quantity of resources is insufficient to meet all wants.
Chapter Two Key Terms
capitalism: an economic system based on a market economy in which capital is individually owned, and production and employment decisions are decentralized.
ceteris paribus: "all other things being equal"; refers to holding all other variables constant or keeping all other things the same when one variable is changed.
circular flow diagram: a diagram illustrating the flow of funds through the economy as people buy and sell in markets.
controlled experiments: empirical tests of theories in a controlled setting in which particular effects can be isolated.
Council of Economic Advisers: a three-member group of economists appointed by the president of the United States to analyze the economy and make recommendations about economic policy.
economic model: an explanation of how the economy or part of the economy works.
economic variable: any economic measure that can vary over a range of values.
experimental economics: a branch of economics that uses laboratory experiments to analyze economic behavior.
gross domestic product (GDP): a measure of the value of all the goods and services newly produced in an economy during a specified period of time.
macroeconomics: the branch of economics that examines the workings and problems of the economy as a whole—GDP growth and unemployment.
microeconomics: the branch of economics that examines individual decision-making at firms and households and the way they interact in specific industries and markets.
mixed economy: a market economy in which the government plays a very large role.
negatively related: a situation in which an increase in one variable is associated with a decrease in another variable; also called inversely related.
normative economics: economic analysis that makes recommendations about economic policy.
positive economics: eco-nomic analysis that explains what happens in the economy and why, without making recommendations about economic policy.
positively related: a situation in which an increase in one variable is associated with an increase in another variable; also called directly related.
relative price: the price of a particular good compared to the price of other things.
socialism: an economic system in which the government owns and controls all the capital and makes decisions about prices and quantities as part of a central plan.
End of Unit I Key Terms.
Sunday, April 11, 2010
Production Possibilities and Technology
What is the opportunity cost of attending an 8 a.m. economics class?
To answer this question, think of all the other activities you could do at this exact time, and rank these choices (from most preferred to least preferred).
At 8 a.m., you could sleep a bit more, have a longer breakfast, take more time to walk to school, watch the early morning news, etc.
Since you made a choice to come to your 8 a.m. economics class, then the best alternative that you DID NOT choose is your opportunity cost. If you value sleep the most, then sleeping is your opportunity cost.
Note: Since you cannot do all of the other activities at the same time, it is incorrect to state that all of those activities are your opportunity cost of attending your 8 a.m. economics class.
The opportunity cost of attending class at 8 a.m., or of any activity differs across individuals. My opportunity cost of attending class at 8 a.m. may be eating breakfast, while for you, it may be taking a longer shower.
Opportunity Cost (of a choice): the value of the best alternative that was not chosen because something else was chosen.
Production Possibilities: alternative combinations of production of various goods that are possible, given the economy’s resources.
To simplify the concept of production possibility, let us think for a moment that the production of an economy can be divided into two broad categories. Suppose the economy can produce either computers (laptops, desktops, servers) or movies (thrillers, love stories, mysteries, musicals). The choice between computer and movies is symbolic of one of the most fundamental choices indiiduals in a society must face: how much to invest in order to produce more or better goods in the future versus how much to consume in the present. Computers can help produce more or better goods. Movies are a form of consumption. Other pairs of goods could also be used to illustrate this exaple. As you can see, with the scarcity of resource such as labor and capital, there is a choice between producing some goods, such as computers, versus other goods, such as movies. If an economy produces more of one, then it must produce less of the other. The below table gives us an example of alternative choices, or the production possibilities, for computers and movies.
Table 1 Production Possibilities.
Opportunity CostsIncreasing Opportunity Costs: a situation in which producing more of one good requires giving up an increasing amount of production of another good.
Why do opportunity costs increase?
Some of the available resources are more suited in producing one good than another. In our example above, some of the available resources are better suited for movie production than computer production,and vice versa. Workers who are good at computer building might not be good at acting, for example, or movie making may requie an area with a dry sunny climate. As more and more resources go into making movies, we are forced to take resources that are much better at computer making and use them for movie making. Thus more and more computer production must be lost to increase movie production by a given amount. Adding specialized computer designers to a movie cast would be very costly in term of lost computers, and it might add little to movie productions.
Figure 2: The Production Possiblity Curve
Each point on the curve shows the maximum number of computers than can be produced when a given amount of movies is produced. The points with letters are those in Table 1. and are connected by smooth lines. Points in the shaded are inside the curve are inefficient. Points outside the curve are impossible. For the efficient points onthe curve, the more movies that are produced, the computers are produced. The curve is bowed out because of increasing opportunit costs.
Friday, April 9, 2010
Will it Work?
Thursday, April 8, 2010
People that were interested in my topic
Clifton Castelman, an Instructional Designer, who is working on his MS in Economics online has suggested that I include Heiti's emergency relief plan as a learning activity in this course.
Barriers That I Encountered:
b) Textbook Chapters: Initially, I was reluctant in using chapters 1 and 2 diectly from the textbook but later, I received the publishers authorization to use those chapters because the university purchased the book to use specifically for the course.
c) Youtube videos: My plan was to upload some video clips in youtube so that students can watch them and post their comments. These videos came with the texbook and discussed the way economy and happiness are related and elaborated on the happiest nation on earth. But I did not receive the permission from the publisher because those video clips were desiged and developed by ABC news and Cengage Publisher was authorized to use them only in their textbook and not to upload them in youtube. I created linked to other youtube videos that covered similar topics instead of uploading my own.
Monday, January 11, 2010
The Central Idea of Economics
The purpose of this web blog is to aid Macroeconomics students understand the basics of economics.
At the end of this lesson you will be able to explain and provide examples of the following terms:
Economics
Scarcity
Choice
Economic Interactions
Market
Economic interactions involve scarcity and choice. Time and income are limited, and people choose among alternatives every day. In this chapter, we study the choices people make when faced with a scarcity of resources and the economic interactions among people when they make their choices. We begin by looking at scarcity, choice, and interaction for individuals. We study consumer and producer decisions, learn about the gains from trade, and see how the same principles that guide interactions between individuals can be used to study interactions between countries. We then look at scarcity and choice for the economy as a whole, and introduce the production possibilities curve. We conclude by studying two alternative economic systems, the market economy and the command economy, and focusing on the role of prices
Before (or until) his widespread scandals, Tiger Wood was a famous athlete and his success in golf was used in many economics textbooks to explain certain economical terms such as scarcity, choice, economic interactions, financial crisis, and market. I am also using his story to interpret certain economic terms.
In the Spring Semester of 1996, when he was only 19, and a sophomore in college, Tiger Wood was faced with a choice: to continue college for an additional two years or to leave college and devote all his time to golf.
Doing both the college and the school was not an option because we have only 24 hours in a day and therefore, time is scarce. When he was sophomore, Tiger Wood had to make a choice, and by choosing one activity will incur a cost by giving up another activity. Choosing golf would certainly mean passing up the job opportunities that would inundate a college senior who was well trained in economics and business. Choosing the college, however, would mean passing up the potential tournament winnings and the guarantees of advertising endorsements that awaited a professional golfer.
Years later, Tiger proved that he made the right choice. In 1996, Tiger Wood was selected to be the Sportsman of the Year and in 1997, he won the Masters Tournament. Within 10 years, he had won 54 tournaments, 12 major championships, and almost $65 million in prize money. His endorsement income was much higher than all the other income. He earned $500 million over his first decade of play and was predicted to be the first athlete to make over a billion dollars in endorsement income.
The secret to such a rich reward from Tiger’s golf talents was his skills to interact with people. Golf fans enjoyed watching him play and were willing to pay a lot of money simply to interact with him. Many fans paid a large amount of money to interact with him by sitting in the gallery as he played in tournaments. Corporate excetuives from Nike, American Express, and General Motors interacted with him and paid him millions of dollars to endorse their products.
Tiger Woods’ story is a story of economics not because of the money he earned but his story illustrates the idea that lies at the center of economics. The economics idea is that “people make purposeful choices with scares resources and interact with others when they make these choices". All economists will agree that the economics is the study of how people deal with scarcity.
Scarcity: Scarcity is a situation in which the quantity of resources is insufficient to meet all wants. It is a situation in which our resources are limited-even a rich athlete like Tiger Wood faced the scarcity of time. Scarcity means that people must make a choice to forgo, or gie up, one things in favor of another. We always face scarcity of something. All CEOs such as Wal-Mart CEO Mike Duke, Cocal Cola CEO Muhtar Kent, Bill Gates of Micro Soft face scarcity.
All simple and ordinary people also face scarcity. For example, a college student may have to find a job to support her family instead of going to college, a worker may want to delay his retirement to hold onto his job that has health benefits, a student may have to choose his allocated time between two courses. As you read this blog, you may find yourself reflecting on decisions that you have to make in your life- whether to take finance or business communication in the upcoming semester. The more time you spend in studying biology, the less time you will have available to spend on economics.
Can you come up with an example of scarcity?