ECON
545 Final Exam Solution 100% Correct Answers
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1.
Question :
(TCO A) Suppose you are hired to
manage a small manufacturing facility that produces Widgets.
(a.) (15 points) You know from data
collected on the Widget Market that market demand and market supply have both
increased recently. As manager of the facility, what decisions should you make
regarding production levels and pricing for your Widget facility?
Remember that supply and demand are about the market supply and market demand, which is bigger than your own company. You are being given data on supply and demand for the whole market and are being asked what effect that has on you as a small part of that market.
Remember that supply and demand are about the market supply and market demand, which is bigger than your own company. You are being given data on supply and demand for the whole market and are being asked what effect that has on you as a small part of that market.
(b.) (15 points) Now, suppose that
following the supply and demand changes in (a), a substitute good goes up in
price, and your costs of production increase. What new decisions will you make
regarding production levels and pricing for your Widget facility?
2.
Question :
(TCO B) Here is some data on the
demand for marshmallows:
Price Quantity
$10 100
$ 8 300
$ 6 700
$ 4 1300
$ 2 2200
$10 100
$ 8 300
$ 6 700
$ 4 1300
$ 2 2200
(a.) (15 points) Is demand elastic
or inelastic in the $6-$8 price range? How do you know?
(b.) (15 points) If the table
represents the demand faced by a monopoly firm, then what is that firm’s
marginal revenue as it increases output from 1300 units to 2200 units? Show all
work. (Be careful here!)
3.
Question :
(TCO C) You have been hired to
manage a small manufacturing facility whose cost and production data are given
in the table below.
Total Total
Workers Labor Cost Output Revenue
1 $500 100 $700
2 1000 280 1150
3 1500 440 1440
4 2000 540 1570
5 2500 600 1670
6 3000 630 1710
7 3500 640 1730
Total Total
Workers Labor Cost Output Revenue
1 $500 100 $700
2 1000 280 1150
3 1500 440 1440
4 2000 540 1570
5 2500 600 1670
6 3000 630 1710
7 3500 640 1730
(a.) (6 points) What is the marginal
product of the second worker?
(b.) (6 points) What is the marginal
revenue product of the fourth worker?
(c.) (6 points) What is the marginal
cost of the first worker?
(d.) (12 points) Based on your
knowledge of marginal analysis, how many workers should you hire? Explain you
answer.
4.
Question :
(TCO C) Answer the next questions on
the basis of the following cost data for a firm in pure competition:
OUTPUT —— TFC ———- TVC
0 $100.00 0.00
1 100.00 70.00
2 100.00 120.00
3 100.00 150.00
4 100.00 200.00
5 100.00 270.00
6 100.00 360.00
0 $100.00 0.00
1 100.00 70.00
2 100.00 120.00
3 100.00 150.00
4 100.00 200.00
5 100.00 270.00
6 100.00 360.00
(a.) (15 points) Refer to the above
data. If the product price is $45 at its optimal output, will the firm realize
an economic profit, break even, or incur an economic loss? How much will the
profit or loss be? Show all calculations.
(b.) (15 points) Refer to the above
data. If the product price is $75 at its optimal output, will the firm realize
an economic profit, break even, or incur an economic loss? How much will the
profit or loss be? Show all calculations.
5.
Question :
(TCO D) A software producer has
fixed costs of $18,000 per month and her Total Variable Costs (TVC) as a
function of output Q are given below:
Q TVC Price
1,000 $15,000 $25
2,000 20,000 24
3,000 30,000 23
4,000 50,000 22
5,000 80,000 20
(a.) (15 points) If software can only be produced in the quantities above, what should be the production level if the producer operates in a monopolistic competitive market where the price of software at each possible quantity is also listed above? Why? (Show all work).
1,000 $15,000 $25
2,000 20,000 24
3,000 30,000 23
4,000 50,000 22
5,000 80,000 20
(a.) (15 points) If software can only be produced in the quantities above, what should be the production level if the producer operates in a monopolistic competitive market where the price of software at each possible quantity is also listed above? Why? (Show all work).
(b.) (15 points) What should be the
production level if fixed costs rose to $48,000 per month? Explain.
6.
Question :
(TCO F)
(a.) (20 points) Suppose nominal GDP
in 1999 was $200 billion, and in 2001, it was $270 billion. The general price
index in 1999 was 100 and in 2001 it was 150. Between 1999 and 2001, the real
GDP rose by what percent?
(b.) Use the following scenario to
answer questions (b1) and (b2).
In a given year in the United States, the total number of residents is 270 million, the number of residents under the age of 16 is 38 million, the number of institutionalized adults is 15 million, the number of adults who are not looking for work is 17 million, and the number of unemployed is 10 million.
In a given year in the United States, the total number of residents is 270 million, the number of residents under the age of 16 is 38 million, the number of institutionalized adults is 15 million, the number of adults who are not looking for work is 17 million, and the number of unemployed is 10 million.
(b1.) (5 points) Refer to the data
in the above scenario. What is the size of the labor force in the United States
for the given year?
(b2.) (5 points) Refer to the data
in the above scenario. What is the unemployment rate in the United States for
the given year?
7.
Question :
(TCO G and H)
(a.) (15 points) Suppose your local
Congress representative suggests that the federal government intervenes in the
gasoline market to stop runaway price increases. Would you say that this view
basically supports the Keynesian or the Monetarist school of thought? Why? What
position would the opposing school of thought take on this issue? (Be brief —
you can answer this in 2 or 3 brief paragraphs).
(b.) (10 points) Any change in the
economy’s total expenditures would be expected to translate into a change in
GDP that was larger than the initial change in spending. This phenomenon is
known as the multiplier effect. Explain how the multiplier effect works.
(c.) (15 points) You are told that
90 cents out of every extra dollar pumped into the economy goes toward
consumption (as opposed to saving). Estimate the GDP impact of a positive
change in government spending that equals $20 billion.
8.
Question :
(TCO G)
(a.) (20 points) Third National Bank is fully loaned up with reserves of $20,000 and demand deposits equal to $100,000. The reserve ratio is 20%. Households deposit $5,000 in currency into the bank. How much excess reserves does the bank now have, and what is the maximum amount of new money that can be created in the banking system as a result of this deposit? Show all work.
(a.) (20 points) Third National Bank is fully loaned up with reserves of $20,000 and demand deposits equal to $100,000. The reserve ratio is 20%. Households deposit $5,000 in currency into the bank. How much excess reserves does the bank now have, and what is the maximum amount of new money that can be created in the banking system as a result of this deposit? Show all work.
(b.) (20 points) What is the
discount rate in the banking system? Explain how the Fed manipulates this rate
to achieve macroeconomic objectives.
9.
Question :
(TCO E and I) Let the exchange rate
be defined as the number of dollars per British pound. Assume there is a
decrease in U.S. interest rates relative to that of Britain.
(a.) (10 points) Would this event
cause the demand for the dollar to increase or decrease relative to the demand
for the pound? Why?
(b.) (10 points) Has the dollar
appreciated or depreciated in value relative to the pound?
(c.) (10 points) Does this change in
the value of the dollar make imports cheaper or more expensive for Americans?
Are American exports cheaper or more expensive for importers of U.S. goods in
Great Britain? Illustrate by showing the price of a U.S. cell phone in Britain
before and after the change in the exchange rate.
(d.) (10 points) If you had a
business exporting goods to Britain, and U.S. interest rates fell as they have
in this example, would you plan to expand production or cut back? Why?
