2.5 PROBLEMS

Question 2.11

Two important industries on the island of Bermuda are fishing and tourism. According to data from the Food and Agriculture Organization of the United Nations and the Bermuda Department of Statistics, in the year 2009 the 306 registered fishers in Bermuda caught 387 tonnes of marine fish. And the 2719 people employed by hotels produced 554 400 hotel stays (measured by the number of visitor arrivals). Suppose that this production point is efficient in production. Assume also that the opportunity cost of 1 additional tonne of fish is 2000 hotel stays and that this opportunity cost is constant (the opportunity cost does not change).

  1. If all 306 registered fishers were to be employed by hotels (in addition to the 2719 people already working in hotels), how many hotel stays could Bermuda produce?

  2. If all 2719 hotel employees were to become fishers (in addition to the 306 fishers already working in the fishing industry), how many tonnes of fish could Bermuda produce?

  3. Draw a production possibility frontier for Bermuda, with fish on the horizontal axis and hotel stays on the vertical axis, and label Bermuda’s actual production point for the year 2009.

Question 2.12

Atlantis is a small, isolated island in the South Atlantic. The inhabitants grow potatoes and catch fish. The accompanying table shows the maximum annual output combinations of potatoes and fish that can be produced. Obviously, given their limited resources and available technology, as they use more of their resources for potato production, there are fewer resources available for catching fish.

  1. Draw a production possibility frontier with potatoes on the horizontal axis and fish on the vertical axis illustrating these options, showing points A–F.

  2. Can Atlantis produce 500 kg of fish and 800 kg of potatoes? Explain. Where would this point lie relative to the production possibility frontier?

  3. What is the opportunity cost of increasing the annual output of potatoes from 600 to 800 kg?

  4. What is the opportunity cost of increasing the annual output of potatoes from 200 to 400 kg?

  5. Can you explain why the answers to parts (c) and (d) are not the same? What does this imply about the slope of the production possibility frontier?

Question 2.13

According to Statistics Canada, 11.0 million hectares of land in Canada were used for wheat or corn farming in 2012. Of those 11.0 million hectares, farmers used 9.6 million hectares to grow 999.62 million bushels of wheat and 1.4 million hectares of land to grow 514.15 million bushels of corn. Suppose that Canada’s wheat farming and corn farming are efficient in production. At that production point, the opportunity cost of producing 1 additional bushel of wheat is 1.7 fewer bushels of corn. However, because farmers have increasing opportunity costs at higher levels of wheat production, additional bushels of wheat have an opportunity cost greater than 1.7 bushels of corn. For each of the following production points, decide whether that production point is (i) feasible and efficient in production, (ii) feasible but not efficient in production, (iii) not feasible, or (iv) unclear as to whether or not it is feasible.

  1. Farmers use 1.6 million hectares of land to produce 180 million bushels of wheat, and they use 2.4 million hectares of land to produce 900 million bushels of corn. The remaining 7.0 million hectares are left unused.

  2. From their original production point, farmers transfer 1.6 million hectares of land from corn to wheat production. They now produce 1009.62 million of bushels of wheat and 497.15 million bushels of corn.

  3. Farmers reduce their production of wheat to 950 million bushels and increase their production of corn to 588.58 million bushels. Along the production possibility frontier, the opportunity cost of going from 514.15 million bushels of corn to 588.58 million bushels of corn is 0.666 bushels of wheat per bushel of corn.

Question 2.14

In the ancient country of Roma, only two goods, spaghetti and meatballs, are produced. There are two tribes in Roma, the Tivoli and the Frivoli. By themselves, the Tivoli each month can produce either 30 kg of spaghetti and no meatballs, or 50 kg of meatballs and no spaghetti, or any combination in between. The Frivoli, by themselves, each month can produce 40 kg of spaghetti and no meatballs, or 30 kg of meatballs and no spaghetti, or any combination in between.

  1. Assume that all production possibility frontiers are straight lines. Draw one diagram showing the monthly production possibility frontier for the Tivoli and another showing the monthly production possibility frontier for the Frivoli. Show how you calculated them.

  2. Which tribe has the comparative advantage in spaghetti production? In meatball production?

    In 100 A.D.. the Frivoli discover a new technique for making meatballs that doubles the quantity of meatballs they can produce each month.

  3. Draw the new monthly production possibility frontier for the Frivoli.

  4. After the innovation, which tribe now has an absolute advantage in producing meatballs? In producing spaghetti? Which has the comparative advantage in meatball production? In spaghetti production?

Question 2.15

According to the Canadian International Merchandise Trade Database from Statistics Canada, in December 2012, Canada sold aircraft and spacecraft worth $27.23 million to China and bought aircraft and spacecraft worth only $8.1 million from China. During the same month, however, Canada bought $255.1 million worth of apparel and clothing accessories from China but sold only $56 253 worth of apparel and clothing accessories to China. Using what you have learned about how trade is determined by comparative advantage, answer the following questions.

  1. Which country has the comparative advantage in aircraft production? In production of apparel and clothing accessories?

  2. Can you determine which country has the absolute advantage in aircraft production? In apparel and clothing accessories?

Question 2.16

Peter Pundit, an economics reporter, states that the European Union (EU) is increasing its productivity very rapidly in all industries. He claims that this productivity advance is so rapid that output from the EU in these industries will soon exceed that of Canada and, as a result, Canada will no longer benefit from trade with the EU.

  1. Do you think Peter Pundit is correct or not? If not, what do you think is the source of his mistake?

  2. If the EU and Canada continue to trade, what do you think will characterize the goods that the EU sells to Canada and the goods that Canada sells to the EU?

Question 2.17

You are in charge of allocating residents to your dormitory’s baseball and basketball teams. You are down to the last four people, two of whom must be allocated to baseball and two to basketball. The accompanying table gives each person’s batting average and free-throw average.

  1. Explain how you would use the concept of comparative advantage to allocate the players. Begin by establishing each player’s opportunity cost of free throws in terms of batting average.

  2. Why is it likely that the other basketball players will be unhappy about this arrangement but the other baseball players will be satisfied? Nonetheless, why would an economist say that this is an efficient way to allocate players for your dormitory’s sports teams?

Question 2.18

The inhabitants of the fictional economy of Atlantis use money in the form of cowrie shells. Draw a circular-flow diagram showing households and firms. Firms produce potatoes and fish, and households buy potatoes and fish. Households also provide the land and labour to firms. Identify where in the flows of cowrie shells or physical things (goods and services, or resources) each of the following impacts would occur. Describe how this impact spreads around the circle.

  1. A devastating hurricane floods many of the potato fields.

  2. A very productive fishing season yields a very large number of fish caught.

  3. The inhabitants of Atlantis discover Shakira and spend several days a month at dancing festivals.

Question 2.19

An economist might say that colleges and universities “produce” education, using faculty members and students as inputs. According to this line of reasoning, education is then “consumed” by households. Construct a circular-flow diagram to represent the sector of the economy devoted to post-secondary education: colleges and universities represent firms, and households both consume education and provide faculty and students to colleges and universities. What are the relevant markets in this diagram? What is being bought and sold in each direction? What would happen in the diagram if the government decided to subsidize 50% of all college and university students’ tuition?

Question 2.20

Your dormitory roommate plays loud music most of the time; you, however, would prefer more peace and quiet. You suggest that she buy some earphones. She responds that although she would be happy to use earphones, she has many other things that she would prefer to spend her money on right now. You discuss this situation with a friend who is an economics major. The following exchange takes place:

He: How much would it cost to buy earphones?

You: $15.

He: How much do you value having some peace and quiet for the rest of the semester?

You: $30.

He: It is efficient for you to buy the earphones and give them to your roommate. You gain more than you lose; the benefit exceeds the cost. You should do that.

You: It just isn’t fair that I have to pay for the earphones when I’m not the one making the noise.

  1. Which parts of this conversation contain positive statements and which parts contain normative statements?

  2. Construct an argument supporting your viewpoint that your roommate should be the one to change her behaviour. Similarly, construct an argument from the viewpoint of your roommate that you should be the one to buy the earphones. If your dormitory has a policy that gives residents the unlimited right to play music, whose argument is likely to win? If your dormitory has a rule that a person must stop playing music whenever a roommate complains, whose argument is likely to win?

Question 2.21

A representative of the Canadian clothing industry recently made the following statement: “Workers in Asia often work in sweatshop conditions earning only pennies an hour. Canadian workers are more productive and as a result earn higher wages. In order to preserve the dignity of the Canadian workplace, the government should enact legislation banning imports of low-wage Asian clothing.”

  1. Which parts of this quote are positive statements? Which parts are normative statements?

  2. Is the policy that is being advocated consistent with the preceding statements about the wages and productivities of Canadian and Asian workers?

  3. Would such a policy make some Canadians better off without making any other Canadians worse off? That is, would this policy be efficient from the viewpoint of all Canadians?

  4. Would low-wage Asian workers benefit from or be hurt by such a policy?

Question 2.22

Are the following statements true or false? Explain your answers.

  1. “When people must pay higher taxes on their wage earnings, it reduces their incentive to work” is a positive statement.

  2. “We should lower taxes to encourage more work” is a positive statement.

  3. Economics cannot always be used to completely decide what society ought to do.

  4. “The system of public education in this country generates greater benefits to society than the cost of running the system” is a normative statement.

  5. All disagreements among economists are generated by the media.

Question 2.23

Evaluate the following statement: “It is easier to build an economic model that accurately reflects events that have already occurred than to build an economic model to forecast future events.” Do you think this is true or not? Why? What does this imply about the difficulties of building good economic models?

Question 2.24

Economists who work for the government are often called on to make policy recommendations. Why do you think it is important for the public to be able to differentiate normative statements from positive statements in these recommendations?

Question 2.25

The mayor of Gotham City, worried about a potential epidemic of deadly influenza this winter, asks an economic adviser the following series of questions. Determine whether a question requires the economic adviser to make a positive assessment or a normative assessment.

  1. How much vaccine will be in stock in the city by the end of November?

  2. If we offer to pay 10% more per dose to the pharmaceutical companies providing the vaccines, will they provide additional doses?

  3. If there is a shortage of vaccine in the city, whom should we vaccinate first—the elderly or the very young? (Assume that a person from one group has an equal likelihood of dying from influenza as a person from the other group.)

  4. If the city charges $25 per shot, how many people will pay?

  5. If the city charges $25 per shot, it will make a profit of $10 per shot, money that can go to providing poor people with free flu shots. Should the city engage in such a scheme?

Question 2.26

Assess the following statement: “If economists just had enough data, they could solve all policy questions in a way that maximizes the social good. There would be no need for divisive political debates, such as whether the government should provide free medical care for all.”