@APEconQuiz #Chapter1

1. Which one of the following is a factor of production?

A. Money

B. government

C. land

D. checkable deposits

E. none of the above

2. What is opportunity cost?

A. The value of your choice

B. The dollar value of all your choices combined

C. The dollar and non dollar value of all your choices

D. The value of your next best alternative

E. The value of all your alternatives

3. When a country or entity has a comparative advantage, which of the following is true?

A. IT HAS A HIGHER OPPORTUNITY COST WHEN PRODUCING A GOOD OR SERVICE THAN ANY OTHER COUNTRY OR ENTITY.

B. THE COUNTRY CAN PRODUCE MORE OF THAN GOOD THAN ITS COMPETITOR.

C. THE COUNTRY CAN PRODUCE MORE OF A PARTICULAR GOOD AT A LOWER OPPORTUNITY COST THAN ANY OTHER COUNTRY OR ENTITY.

D. THE COUNTRY PRODUCES LESS OF A PARTICULAR GOOD OR SERVICE THAN ANY OTHER COUNTRY.

4. Which of the following factors of production would a machine belong to?

A. Land

B. Labor

C. Capital

D. Money

E. Technology

5. If a country’s production possibilities curve shifts outward, which one of the following is true?

A. The country has underemployed its resources.

B. The country has decreased its production.

C. The country has increased its technology.

D. The country is experiencing inflation.

6. What is the basic economic problem?

A. Scarcity is a result of limited wants and unlimited resources.

B. Scarcity results from the fact that prices are too high.

C. Scarcity exists because there aren’t enough people in the world.

D. Scarcity results from the fact that if prices are too high people want less.

E. Scarcity is caused by unlimited wants and limited resources.

7. Which of the following best describes the circular flow of economic activity?

A. Firms earn money in exchange for goods and services in a factor market.

B. Firms and households both lose money in a factor market.

C. Households earn money in exchange for labor in a factor market.

D. Households earn money in exchange for labor in a product market.

E. None of the above.

8. What does every choice create?

A. More choices

B. An opportunity cost only

C. An opportunity benefit only

D. An opportunity cost and benefit

E. A monetary cost

9. Suppose you can paint a room or walk backwards to the mall and back five times in two hours. Your friend Anup can paint a room in one hour. In order for him to have a comparative advantage in painting a room, how many times must he be able to walk to and from the mall backwards in two hours?

A. More than five and fewer than ten

B. More than five

C. Fewer than ten

D. Not enough information

E. None of the above

10. Kelsey can eat 15 apples or peel 20 oranges in an hour. Ara can eat 30 apples or peel 25 oranges in an hour. Which of the following statements is true?

A. Kelsey has a comparative advantage in eating apples.
B. Ara has an absolute advantage in both activities.
C. Kelsey has a comparative advantage in orange peeling.
D. Kelsey has an absolute advantage in both activities.
E. Ara isn’t eating enough apples.

11. In which of the following economies does the government decide how to use the factors of production?

A. Market economy

B. Traditional economy

C. Command economy

D. Free Trade economy

E. Trade restrictive economy

12. Which one of the following is not an economic goal.

A. Freedom

B. Incentives

C. Equity

D. Efficiency

E. Profit

13. Which one of the following is considered the regulating force of the market system?

A. Government

B. Government and Firms

C. Firms and taxes

D. Suppliers and consumers

E. All of the above

14. What do the plot points on the production possibilities graph represent.

A. Taxes

B. Unemployment

C. Inflation

D. Trade-offs

E. Firms

15. Which one of the following is a factor of production.

A. Money

B. Revenue

C. Profit

D. Labor

E. Taxes

Intro to Elasticity

If the price of a product increases, the amount demanded decreases. But how much does it decrease? The “how much” describes the concept of price elasticity of demand. If the price of a product increases and the amount demanded decreases by a lot, then the product is elastic. If it decreases by a little bit, or not at all, then the product is inelastic.

Different products have different elasticities, and different people have different elasticities. Businesses use the various elasticities of people and products to make better decisions about how to maximize their profits. For example, airlines often charge more to business travelers than to tourists, because business travelers have lower price elasticities of demand. Airlines attempt to distinguish between business travelers and tourists by placing restrictions (for example, Saturday stay required) on when and how long people can fly for certain fares. Governments can also use elasticity in determining the amount of tax on a product. There are high taxes on low-elasticity products such as gasoline and cigarettes, because raising taxes on gasoline or cigarettes is expected to not significantly affect the amount of these products demanded.

This unit will also discuss other types of elasticities, such as income elasticity of demand, cross price elasticity of demand, and price elasticity of supply

Demand vs Quantity Demanded & Supply vs Quantity Supplied

The Difference Between Demand and Quantity Demanded

We learned in an earlier section that as the price of a product increases, the amount purchased by buyers decreases. This is the law of demand. In a more recent section, we noticed that as demand increases, the price of a product increases. When you look at these two statements together, it may appear confusing and contradictory. However, the two statements are both valid. It is merely a matter of what causes what, and which is the cause and which is the effect. To understand the difference more clearly, we need to study the difference between demand and quantity demanded.

Quantity Demanded

If the market price of a product decreases, then the quantity demanded increases, and vice versa. For example, when the price of strawberries decreases (when they are in season and the supply is higher; see graph below), then more people will purchases strawberries (the quantity demanded increases). A quantity demanded change is illustrated in a graph by a movement along the demand curve.

Screenshot 2014-03-02 08.00.38

 

Demand

When one or more of the six demand determinants listed in Section 6 changes, then demand changes. For example, when buyers’ incomes increase, the demand (not quantity demanded) for a normal product increases. Or when the price of a substitute product decreases, then the demand for the product in question decreases. Or when the number of buyers increases, the demand increases, and the price of the product increases. An increase in demand is illustrated in a graph by a  rightward shift in the demand curve.
The following graph illustrates an increase in demand:

Screenshot 2014-03-02 08.00.54

 

In the graph above, demand increases as D1 shifts to D2. Quantity supplied increases in the above case as the equilibrium point shifts along the supply curve from point A to point B.

The Difference Between Supply and Quantity Supplied

The distinction between supply and quantity supplied is similar to the difference between demand and quantity demanded.

Quantity Supplied

If the market price of a product increases, then the quantity supplied increases, and vice versa. For example, when housing prices increase (when the demand for houses has been strong), then more people will want to sell their house (quantity supplied increases). A quantity supplied change is illustrated in a graph by a movement along the supply curve.

Screenshot 2014-03-02 08.01.06

 

Supply

When one or more of the four supply determinants listed in Section 8 changes, then supply changes. For example, when technology advances,or the cost of production decreases, supply increases. An increase in supply is illustrated in a graph by a rightward shift in the supply curve.

The following graph illustrates an increase in supply and an increase in quantity demanded.

Screenshot 2014-03-02 08.01.13

The above diagram illustrates that supply increases as S1 shifts to S2, and quantity demanded increases as the equilibrium point shifts along the demand curve from point A to point B.

 

 

The Free Market System and Externalities

The Free Market

In a free market economy, prices of goods and services, wages, interest rates, and foreign exchange values are determined by supply and demand. There is no interference from a government in the form of price controls, minimum or maximum wage laws, or other regulations affecting the market price of a product. No economic system is perfect, but a free market has been shown to be economically most efficient and one that leads to the highest standard of living. The following are specific advantages of a free market system.

Advantages, or the good things.

1. Products are priced at their true worth.

The most important advantage of a free market system is that products are priced at their true “worth.” The product’s true worth is based on how much buyers and sellers value the product. This is reflected in the demand and supply of the product. Free market prices provide sellers with the greatest incentive to produce, and it ensures efficient production. Producers are always looking for the lowest cost and most efficient means to produce. It also provides consumers with the greatest purchasing value, as only those products are produced that consumers value. The demand for a resource (for example, labor) is based on how much businesses value the worker, which in turn is based on how much consumers value the product. The supply is based on the availability and cost of resources to make the product. The supply of labor is based on how much workers value the income from their work relative to the time sacrifice they are willing and able to make. If a certain occupation’s income is high, consumers must be valuing the product highly, and subsequently, a worker has a greater incentive to enter the occupation. This responsiveness in the price system is what maximizes total economic value in society.

2. Greater incentives to work and a higher standard of living

A free market with relatively low taxation encourages people to work hard and innovate. This profit incentive provides competition and entrepreneurship. Entrepreneurship leads to creation of jobs and production of products, which raise people’s standards of living. Countries that have limited government interference in the free market have shown to be the most productive. The standard of living in politically and economically free, or mostly free, countries is the highest in the world, and poverty measured in absolute standard of living is the lowest.

3. Greater freedom

A free market allows people the freedom to choose their occupation and the products they can afford to buy. Countries that encourage free markets and discourage economic and social discrimination allow for greater degrees of income mobility. People have opportunities and the freedom to improve their economic positions through innovation and hard work. Even poor immigrants who come to the country with nothing but their own courage and determination often succeed and work their way up the economic ladder.

Disadvantages of the Free Market System

1. Income inequality.

In a free market system, a significant degree of income inequality is common. Workers who are more productive and innovative earn a higher income than workers who are less productive and innovative. Most people do not like too much income inequality. Governments correct income inequalities by imposing higher taxes on higher-income households, and by providing subsidies and government handouts to lower-income households. Despite government handouts, some products are priced beyond what lower income households can afford. If products are essential for survival (food, housing, medicine), and the government feels that some households cannot afford them, it may impose price ceilings. Price ceilings are prices below the equilibrium in the market.

2. Externalities

Externalities are benefits or costs that are generated apart from the benefits or costs related to the trade itself. An externality can be positive or negative. An example of a negative externality is pollution caused by a factory. If a factory pollutes, the polluted area and its residents will suffer. This imposes a cost on the residents, even though the residents may not be direct parties to the trade of the product produced by the factory. Since this cost is not reflected in the price of the product, governments often impose pollution fees or taxes. These funds can then be used to clean up the polluted area or subsidize the expense associated with the pollution cost. Examples of positive externalities are health care services, education and training. When doctors, hospitals and community health organizations provide services (for example, inoculations) to keep people healthy, it also benefits people who are not using the health services. When fewer people get sick, especially contagiously, fewer other people get sick, too. In other words, even people not purchasing health services benefit from health services. Consequently, governments feel justified to collect taxes from everyone (since everyone benefits) and subsidize health services. Education and training similarly benefit society in general, as relatives, friends, and businesses benefit from the increased knowledge of the trained individual (assuming this person interacts with these members of society).

3. Public goods and the free rider problem.

Public goods are goods and services provided by the government without a direct charge to the user of the good. Examples of publics goods are public education, public transportation, public roads, bridges, highways, defense, a legal system, and police and fire protection. In general, it is difficult or undesirable for these goods to be provided by private businesses. Defense, for example, has to be provided by a government because it is difficult to charge individuals for this service. Thus, the private sector may under-allocate resources relative to our needs in the case of public goods.

The problem with publicly provided goods is that some people contribute very little or nothing to the revenue (taxes) that the government collects. This means that they get to use the service for free, without any cost. This is called the free rider problem. Even for people who contribute taxes, their marginal cost of the service is less than their marginal benefit.

Let’s take a look at public transportation, for example. If public transportation were to charge each user the actual cost of the service, it may charge, for example, $3 per ride. People will use the service as long as the benefit of each ride exceeds the marginal cost of each ride ($3). However, if the government decides that the cost of public transportation will be borne by society and not by each individual user, the following will
happen. Each ride still costs the government $3. If there are 200 riders, the total cost to the government is $600. Let’s say that there are 6,000 taxpayers contributing to the funds to pay for public transportation. This means that each taxpayer contributes an average of $0.10 to pay for public transportation.

If we increase the number of riders from 200 to 201, the total cost to the government increases by $3. As the cost is borne by 6,000 taxpayers, the marginal cost for each tax-paying citizen is only $0.10. For most riders the marginal benefit of using public transportation is greater than $0.10, so the tendency is for users to over-consume this product, as long as the government continues to not charge for individual use of the public transportation. This free rider phenomenon is typical of all publicly provided goods, and is a disadvantage because it leads to overconsumption and inefficiency. For this reason, most economists support private production, as long as individuals can be charged for the service separately. Defense, police, and fire protection, by nature, must be publicly provided. Banking, insurance, and retirement plan services, for example, can be privately provided. Many of these services are, indeed, provided by the private sector. However, some are not. Some economists would like to see government unemployment insurance programs (Unemployment Compensation), government banking insurance programs (the Federal Insurance Deposit Corporation), and government retirement systems (Social Security) be replaced by private companies. Even the provision of roads and highways can, in the future, be provided by private companies, as new and
less-expensive computer scanning equipment becomes available.

Free Market Interferences

When a government interferes with the workings of the free market, inefficiencies in the market occur in the form of shortages, surpluses, misallocations of resources, malinvestments, and business losses. From an economic point of view, this is harmful.

Price Ceilings

A price ceiling is a price below the free market price. Let’s say a product’s equilibrium price is $10 and the government requires manufacturers to sell the product for $8. Consumers prefer buying the product at this lower price. However, producers, faced with lower revenue, will have much less incentive to make the product. Some may produce the product with cheaper ingredients and at a lower quality to try to bring the cost down to less than $8. Other manufacturers will stop producing the product. A shortage of the product likely results.

Price Floors

A price floor is a price above the free market price. Sometimes governments require the price of a product to be higher than the market price. Government do this to help suppliers. If the market price is $10, and the government establishes it at $14, then producers have an incentive to produce more. They will experience higher profits per product. However, the higher price turns away consumers. Consequently, less of the product will be sold in the market, and surpluses result.

The government’s purpose for interfering with market prices is to remedy social problems, such as poverty and homelessness. Economic evidence shows that this interference is usually accompanied by other, sometimes more severe, problems in the long run.

Rent Control

In the case of rent control in large cities, the government requires landlords to keep the rent of their apartments and houses below the free market level. The result is that it becomes unprofitable for many landlords to invest in property or build additional properties. The rent that the government allows is not worth the landlord’s expenses and investments. Furthermore, it is more attractive for builders and landlords to invest in areas in which there is no rent control. Consequently, the supply of properties in the rent-controlled area decreases and shortages occur. The tenants who rent at the government-controlled price may feel fortunate at first. However, the property will suffer from poor maintenance because the landlords have no incentive to invest money in it and because there is a long waiting list of tenants. Rent control also prevents thousands of people from acquiring anything at all because the artificially low rent discourages potential builders from building additional dwellings

Correcting Income Inequalities

The government narrows income inequalities by imposing high taxes on the wealthy and providing government handouts to the poor. By doing this, the government runs the risk of taking away incentives for workers to be productive. If a productive worker and a non-productive worker receive the same rewards (after taxes and government handouts), why work hard?

Taxation

Given that some functions of government are essential to the effective operation of our economy, it is essential that government collects at least some taxes. It also seems fair that high-income earners contribute more to the government than low-income earners. However, a government is wise to ensure that more-productive workers are rewarded appropriately for their efforts. If a government redistributes incomes too much by levying high rates of taxation, people lose the incentive to innovate, produce, work hard, and create jobs. Too much redistribution of incomes leads to a decrease in a country’s standard of living, as has been evident in the failing economies of past and current communist nations.

Price Changes in the Short Run and in the Long Run

Categories of Products

Prices of some categories of goods increase in the long run as demand rises, while others do not. Here we distinguish between products that are in limited supply, such as land, labor, raw materials, and sports and performance event tickets, and manufactured products, or ones that are in nearly unlimited supply in the long run. The latter category of products includes products such as grocery items, clothes, cars, and electronic products

Products in Limited Supply

In the long run, prices of products that are in limited supply fluctuate much more with changes in demand than products that are in abundant supply. Examples of limited supply goods and services include land, labor, natural resources such as oil, gas and minerals, tickets to major sporting events (the Superbowl), and products
supplied by a monopoly.

If, for example, the demand for land in a certain area rises because of increased population and increased housing activity, the price of the land will increase. Because the supply of land is limited, the price of the land can remain high for a long period of time as long as the demand remains high.

Products supplied by a monopoly are limited because the firm may be the sole owner of a resource, or the firm may have a patent, a license, or other government approval to be the only supplier. The limited supply (if the demand is high) will cause the price of the product or service to be high.

Manufactured Products

Prices of products in abundant supply, or so-called manufactured products (except those produced by a monopoly), generally do not remain high in the long run. For example, let’s take a look at the price of cheese. When the demand for cheese increases, the price increases in the short run. A higher price of cheese means that profits for the suppliers will be higher, assuming that the cost of production remains constant. If the profits to
produce and sell cheese exceed the average level of profits in other industries, more entrepreneurs (more cheese suppliers) will enter the industry.

This increases supply and brings the price back down in the long run. Thus, in the long run the price will settle at a level where profits are normal or average and not excessive.

Prices of manufactured products are set such that they merely cover the cost of production, plus a fair (not excessive) allowance for a profit.

Consumer Surplus and Producer Surplus

Consumer Surplus

In the graph below, the supply and demand curves intersect at an equilibrium price of $5 and an equilibrium quantity of 120 products. If the price had been $6, buyers would have purchased 110 products. If the price had been $7, buyers would have purchased 100 products. If the price had been $8, buyers would have purchased 90 products, and so forth. This means that quite a few buyers would have been willing and able to pay more for the product than they are actually paying at the equilibrium price of $5. At the equilibrium price of $5 everyone pays that price, including the buyers who would have been willing to pay a higher price. The difference between how much consumers value a product and how much they actually pay for it at the equilibrium price is called consumer surplus. The consumer surplus in the graph below is illustrated by the shaded triangle.

Screenshot 2014-03-02 07.23.42

 

Producer Surplus

Producer surplus is similar to consumer surplus, but it measures the benefits of a trade for producers. Producer surplus is the difference between the minimum price at which producers would have been willing to produce the product and how much they are actually receiving at the equilibrium price. The producer surplus in the graph below is illustrated by the shaded triangle.

The total additional benefit to society of trading this product is the sum of consumer surplus and producer surplus. Can you figure out what happens to consumer surplus and producer surplus if both demand and supply increase (both curves shift to the right)?

Screenshot 2014-03-02 07.20.34

 

Because the terms are so similar, it is easy to be confused about the difference between a regular (product) surplus, and a consumer or producer surplus.

A regular surplus (of a product) happens when businesses are charging a price that is higher than the equilibrium price. This happens when the price charged is above the equilibrium price (above the intersection of the supply and demand curves). For example, if a product’s equilibrium price is $5 but a business is charging $6 (perhaps because of a government mandate), then there will be a surplus of products (businesses are producing more than what consumers are buying).

When we discuss consumer surplus, the price charged by businesses is the equilibrium price (it is not higher than the equilibrium). Consumer surplus is the concept that consumers benefit and gain value from buying a product at the equilibrium price. So let’s say that the equilibrium price of a product is $5. If 80 people would have been willing to pay $6 for the product (because they value the product a lot) then the consumer surplus of these 80 people is $1 each (or $80 total). They are valuing the product at $6, but they are paying the equilibrium price of $5 per product.

The concept of producer surplus is the same as consumer surplus, except that it applies to producers who sell the product instead of consumers.

The Effect of Changes in Both Demand and Supply on Equilibrium Price and Quantity.

A Simultaneous Increase in Demand and Supply

From the previous sections, we know that an increase in demand increases equilibrium price and quantity (and vice versa), and an increase in supply decreases equilibrium price and increases quantity (and vice versa). What happens if both demand and supply change at the same time?

Let’s analyze the following examples.

Example 1

Problem: Suppose that you know that consumers’ incomes have gone up, and that an advance in
technology has lowered the cost of making computers. Assuming that a computer is a normal good, what will happen to the equilibrium price and quantity of computers as a result of these two simultaneous changes?

Solution: An increase in consumers’ incomes increases the demand for computers (click next in the diagram below; D shifts to the right). An advance in technology increases the supply (click next again; S shifts to the right). Consequently, the equilibrium quantity increases because the
equilibrium quantity increases in both instances. The market price will either increase, decrease, or stay the same, depending on the size of the shifts in the curves. If demand increases more than
supply, then the price increases, and vice versa. If we don’t know the magnitude of the shifts, we say that the price is indeterminate.

Example 2

Problem: Buyers expect videotape prices to increase in the near future, and at the same time, the
government decides to tax the production of videotapes. What effect does this have on the market
price and output of videotapes?

Solution: Current demand increases because buyers expect the price to increase in the future.
Supply decreases because the increased tax makes it less attractive for firms to supply the product. Therefore, the price of videotapes increases, and the equilibrium quantity is indeterminate. When both demand and supply shift, one variable (price or quantity) experiences a definite change, and the other is indeterminate (unless you know the magnitude of the shifts). When only one curve shifts, both equilibrium price and quantity experience a definite change.

The Effect of Shifts in Demand on Equilibrium

Because tablet computers are a normal good, when incomes increase, the market demand curve for tablet computers shifts to the right. The figure below shows the effect of a demand curve shifting to the right, from D1to D2. This shift causes a shortage at the original equilibrium price, P1. To eliminate the shortage, the equilibrium price rises to P2, and the equilibrium quantity rises from Q1 to Q2. In contrast, if the price of a substitute good, such as laptop computers, were to fall, the demand for tablet computers would decrease, shifting the demand curve for tablets to the left. When the demand curve shifts to the left, the equilibrium price and quantity will both decrease.

The Effect of a Change in Supply on Equilibrium Price and Quantity

We have seen that the interaction of demand and supply in markets determines the quantity of a good that is produced and the price at which it sells. We have also seen that several variables cause demand curves to shift and other variables cause supply curves to shift. As a result, demand and supply curves in most markets are constantly shifting, and the prices and quantities that represent equilibrium are constantly changing. In this section, we look at how shifts in demand and supply curves affect equilibrium price and quantity.

When Toshiba entered the market for tablet computers by introducing the Thrive, the market supply curve for tablet computers shifted to the right. The figure below shows the supply curve shifting from S1 to S2. When the supply curve shifts to the right, there will be a surplus at the original equilibrium price, P1. The surplus is eliminated as the equilibrium price falls to P2, and the equilibrium quantity rises from Q1to Q2. If existing firms exit the market, the supply curve will shift to the left, causing the equilibrium price to rise and the equilibrium quantity to fall.

What is Good for One Industry is not Necessarily Good for the Country .

Let’s look at the farming industry as an example of the fallacy of composition. Currently, the United States government (and governments of many other industrialized countries) supports farmers in the form of direct subsidies and other programs. These subsidies benefit most farmers and seem to be beneficial for the farming industry. Many people believe that what is good for the farming industry must automatically also be good for the entire country. It is certainly possible that this is the case. However, to automatically conclude this is to suffer from the fallacy of composition. Farm subsidies and other farm support programs costs the government money. This increases taxes and hurts citizens. Furthermore, some farm programs (price supports) increase the price of certain agricultural products to consumers. Some economists also claim that the subsidies to farmers do not even benefit farmers themselves because it makes them weaker and less competitive in the long run. The subsidies may help the farmers in the short run, but not in the long run