Final Examinations from previous
terms
This
is the final from Prof. Olney's Fall 2018 offering of
Economics 1.
The exam was administered in two parts (Parts I & II during the final exam
period; Part III due during RRR week).
Part I. (68 points total; 1 hour total) Questions based on
the last third of the course
Question 1. (10 points; 9 minutes)
What is “money”? Who creates money? Explain how money is
created.
Question 2. (12 points; 10 minutes)
A. (3 points) What is the “government’s
budget deficit”? Does a tax cut increase or decrease the
budget deficit (circle the answer)?
B. (6 points) Explain why a tax cut leads to
a smaller total increase in GDP than does an equal sized
increase in government spending. (Simply writing down a
formula is not an explanation.)
C. (3 points) The December 2017 Trump Tax
Cut primarily benefited corporations and high income or
wealthy individuals. Why was the effect of the tax cut on the
economy therefore smaller than it would have been if the tax
cut had primarily affected low and middle income people?
Question 3. (22 points; 20 minutes)
Suppose aggregate demand, C + I + G + EX - IM, can be
simplified to the following equation
AD = 900 - 60*i + 0.4Y
The units are billions of dollars per month, and an interest
rate of 1 percent is measured as 1 (not 0.01).
Suppose the Taylor Rule for this economy is
i = 4 + 2*(actual - goal inflation rate) -
1*(actual - goal unemployment rate)
The goal inflation rate is 2 percent (use 2, not 0.02) and the
goal unemployment rate is 4 percent (use 4, not 0.04).
A. (4 points) Is the central bank in this
economy relatively hawkish or dovish? Defend your answer.
B. (7 points) Suppose the interest rate is
initially 5 percent. What is the equilibrium level of income
in this economy?
C. (11 points) At the level of income you
determined in part A, the unemployment rate is 3.5 percent and
the inflation rate is 3 percent. What interest rate target
will the central bank now set? Will this new interest rate
target bring the economy closer to the central bank’s goals
for unemployment and inflation? Explain.
Question 4. (12 points; 10 minutes)
A. (6 points) In today’s economy, it’s
harder for workers to get promoted. In 2006, it took an
average of 2 ½ years to get a promotion; today it takes 4 ½
years. As a result, fewer workers are willing to boost their
productivity in an effort to impress the boss and get the
promotion. In 2006, 25 percent of employees said they were
willing to give “an extra oomph” at work (boost their
productivity); today about 15 percent are willing to do so.
Explain the connection to the Phillips curve.
B. (6 points) When an employer lists a job
opening, they receive hundreds of applications. Eightfold is a
new product that uses artificial intelligence (AI) to scan
resumes and quickly and accurately identify the applicants who
are the best fit for the job. An economist who studied the use
of AI in hiring said, “You get the more nontraditional,
equally qualified, equally high-performing people, but the
employer doesn’t seem to have to compete for them as much.”
What effect might the use of AI have on the slope of the
Phillips curve and why?
Question 5. (12 points; 10 minutes)
A. (9 points) On Nov. 28, Fed Chairman
Powell said the current FFR=2.25% is “just below” the neutral
rate. That was a surprise; most people thought the neutral
rate was about 4 percent. Why did Powell’s statement cause
long-term interest rates to fall? How does that affect the
slope of the yield curve? Illustrate at the right with two
yield curves — one for before and one for after Powell’s
statement.
B. (3 points) One reason the stock market
fell so much last week was that many (many!) analysts said “Oh
no! This change in the slope of the yield curve means a
recession [a drop in aggregate demand] is imminent!” Do you
agree? Why or why not?
Part II. Questions from the entire course (72 points total;
1 hour total)
Question 6. (12 points; 10 minutes)
Explain why an increase in interest rates in the U.S.
decreases aggregate demand. Note which effect(s) occur if the
increase in interest rates is experienced throughout the
world, and which effect(s) occur only if the increase in
interest rates is experienced only in the U.S. Be complete.
Question 7. (12 points; 10 minutes)
The government climate change report issued November 23, 2018
predicts a 10 percent drop in U.S. GDP by 2100 due to climate
change. There are multiple sources.
• There will be increasingly common and
severe natural disasters (hurricanes, tornadoes, floods,
wildfires)
• Clean-up and rebuilding after natural
disasters will require reallocating resources from other
economic activities
• Infrastructure will be damaged or
destroyed more frequently due to the increasingly common
natural disasters
A. (7 points) Explain why and under what
circumstances the clean-up and rebuilding after a natural
disaster requires a reduction in other economic activities.
Use a production possibilities frontier to illustrate your
explanation. Put clean-up & rebuilding “(C&R)” on one
axis.
B. (5 points) Explain the effect of damage
and destruction of infrastructure on economic growth. Tell us
how you would illustrate this in a PPF (but don’t actually
draw it).
Question 8. (12 points; 10 minutes)
Lake Tahoe is a year-round vacation destination on the
California/Nevada border. Houses near Lake Tahoe can be
occupied by owners, by long-term renters who live year-round
and work at Tahoe, or by short-term vacationers (Airbnb
rentals). South Lake Tahoe is one town located on the lake. On
November 6, voters in South Lake Tahoe banned vacation home
rentals (Airbnb rentals) in their town. The ban takes effect
on December 20. The ban was favored by people who live and
work at Tahoe. The ban was opposed by people who own vacation
home rentals. Assume the market for rental houses is
monopolistically competitive and before Nov. 6 was in a
long-run equilibrium.
• What are the benefits of the vacation home
rental ban for people who live year-round at Tahoe? Why would
owners of vacation home rentals be opposed to the ban? In the
long run, who will own houses in South Lake Tahoe? Be sure
you’ve explained each of your answers.
Question 9. (12 points; 10 minutes)
The market for oil can be modeled as one worldwide market.
OPEC (Organization of Petroleum-Exporting Countries) is an
organization of 15 oil-producing countries. OPEC met last week
and decided to decrease oil production by 1.2 million barrels
per day.
(Not relevant to the question but FYI: The two largest
oil-exporters in OPEC are Russia and Saudi Arabia. The US is
not a member of OPEC but due to technological change
(fracking) and regulatory reform, the US has recently become
the #1 producer of oil in the world.)
A. (7 points) What effect should OPEC’s
decision have on the price of oil? Why? Draw a supply and
demand diagram that supports your answer.
B. (5 points) OPEC made this decision in
part because oil prices have been falling due to decreased
worldwide demand for oil. What does this information suggest
is the proper counterfactual to use when analyzing the effect
on price of OPEC restricting production?
Question 10. (24 points; 20 minutes)
Let’s think about gas taxes again. The global Paris Climate
Agreement signed by 194 countries and the European Union calls
on everyone to reduce global emissions to fight climate
change. One strategy for doing so is by taxing purchases of
gas (fuel taxes). But recently in France, there have been
widespread protests against higher fuel taxes. The protests
were led by commercial truck drivers (“truckers”) and poor and
working class people.
A. (10 points) Explain why a tax in the
presence of a negative externality can bring the market
equilibrium quantity closer to the socially optimal quantity.
B. (6 points) What are the likely
differences in the price elasticity of demand for gas (fuel)
between truckers, poor-and-working-class people, and high
income individuals? Defend your answer.
C. (8 points) Traditionally, a gas tax has
been assessed as a constant amount per gallon or liter. For
instance, according to the OECD, in 2013, gas taxes were $3.29
per gallon in Germany, $1.25 per gallon in Canada, and $0.53
per gallon in the U.S. Charging a constant amount per gallon
means gas taxes are a regressive tax: poor and working class
people pay a much higher share of their income in gas taxes
than do high income people. Suggest and defend a tax scheme
that will accomplish two goals: lower consumption of gas, but
not disproportionately affect poor and working class people.
Part III. Comprehensive Essay Question (60 points)
You are an intern for a newly-elected Senator who has been
appointed to the Senate Banking Committee. This committee
confirms appointees to the Federal Reserve Board of Governors.
There are currently 3 Board vacancies. The Senator-Elect wants
you to prepare a briefing paper on monetary policy that can be
used to prepare for questioning Board Chairman Powell or an
appointee nominated by President Trump for one of the three
Board vacancies.
The Senator-Elect is an educated person with some background
knowledge of economics, but has been out of college for a few
decades. You were hired for this internship because of the
breadth and depth of your economic knowledge and your ability
to write. You don’t want to let the Senator-Elect down!
Here’s your drafted outline. Most definitely, include at least
the points noted below. You can include visual representations
of data as appropriate (a figure can be worth a thousand
words; Fred is a good source).
- Intro paragraph. Set the stage. This paragraph should
tell the Senator-Elect the focus of the rest of the
briefing paper.
- Inflation hawk or dove. Explain the dual mandate of the
Fed and what it means to be a hawk or a dove. Give the
Senator-Elect a sample question or two that could be asked
in a hearing to determine whether Chairman Powell or a
Board nominee is an inflation hawk or dove.
- Role of interest rates. The Senator-Elect needs to
understand how changes in interest rates affect
unemployment and inflation. This will be an important part
of the briefing paper.
- Start with the basics, explaining why higher interest
rates slow economic growth, relative to the
counterfactual.
- Need to explain the concept of the counterfactual in
this context!
- Include some caveats – examples of circumstances under
which the chain of events from Fed policy to economic
growth might not unfold as expected.
- Connect economic growth to changes in unemployment and
inflation. Why is there typically a tradeoff between
unemployment and inflation?
- Address the puzzle of 2012-2016 when falling
unemployment didn’t trigger rising inflation. What are the
unanswered questions about the nature of the Phillips
curve relationship? Offer the Senator-Elect a question to
ask in a hearing to elicit the thoughts of the Chairman or
a Board nominee.
- Labor markets are part of the puzzle, so walk the
Senator-Elect through an analysis of labor markets.
- Concluding statement: What are the key points the
Senator-Elect should keep in mind when questioning
Chairman Powell or a Board nominee?
This
is the final from Prof. Olney's Fall 2017 offering of
Economics 1.
The exam was administered in two parts (Parts I & II during the final exam
period; Part III due during RRR week).
Part I. Questions based on the last
third of the course (55 points total; 49 minutes total)
Question 1 (20 points total; 17 minutes total)
This question is based on reader article #24, “Federal Funds
and Interest on Reserves,” Federal Reserve Bank of New York,
and “FAQs about Interest on Reserves and the Implementation of
Monetary Policy,” Federal Reserve Bank of New York.
A. (5 points) Define IOER.
Define FFR. When we talk about the FFR (also known as, FFER),
what is the market we are discussing? (One phrase answers to
each question are sufficient.)
B. (10 points) How does
the New York Fed traditionally use Federal Open Market
Operations (FOMO) to facilitate an increase the FFR? Be
specific about what actions are taken. Include a graph of the
FF market in your answer.
C. (5 points) After
November 2008, who became the primary sellers of federal
funds? How does this explain the fact that since 2008, the FFR
has consistently been less than the IOER?
Question 2 (8 points; 7 minutes)
Suppose the federal government passes a bill that
simultaneously does two things:
• taxes are decreased for high wealth
households, saving them a total of $100 billion per year
• transfer payments (Medicaid, Social
Security) are decreased for low income and elderly households,
with a total cut of $100 billion per year
What is the effect of this bill on aggregate demand (possible
answers: increase, decrease, stay the same)? What is the
effect of this bill on employment? Defend your answers.
Question 3 (12 points total; 11 minutes total)
The Phillips curve remains, at least for now, a useful tool
for monetary policy authorities.
A. (4 points) At the
right, draw and label a Phillips curve. Indicate on the curve
approximately where the U.S. economy is currently.
B. (8 points) The Fed (and
other central banks around the globe) now practices “forward
guidance.” What is forward guidance? How does the Fed’s use of
forward guidance decrease the likelihood of the Phillips curve
shifting?
Question 4 (15 points total; 13 minutes total)
Estimated values of the Taylor rule for the U.S. Fed are
expressed by the following equation. Subscripts “t” refer to
the time period. When all subscripts are “t” that means we are
using the values for those variables in the same time period.
For instance, if t = 2017:I, then any variable with a
subscript “t” refers to the 2017:I value of that variable. A
variable with a subscript “t+1” refers to the 2017:II value of
that variable.
Target nominal FFRt = 4.63 + 1.28*(actual
inflation ratet - 2.0) - 1.95*(actual unemployment ratet -
4.7)
A. (3 points) Using this
estimated equation, what is the neutral value of the federal
funds rate? What is the Fed’s target for the inflation rate?
What is the Fed’s target for the unemployment rate?
B. (7 points) What is an
“inflation hawk”? What is an “inflation dove”? Based on this
estimated equation, would you characterize the Fed as hawkish
or dovish? Why?
C. (5 points) When setting
the target for the FFR, the Fed is actually forward-looking.
That is, the Fed considers both current values of inflation
and also what the inflation rate would be in the near future
if the Fed were to do nothing. Does the equation above (in the
prompt) capture this forward-looking behavior? Defend your
answer.
Part II. Questions from the entire course (85 points total;
74 minutes total)
Question 5 (20 points total; 17 minutes total)
A. (8 points) Why does a
decrease in interest rates typically lead to an increase in
investment spending? In your answer, be sure to distinguish
between the interest rate(s) that are relevant for firms using
internal finance versus the interest rate(s) that are relevant
for firms using external finance.
B. (12 points) Why does a
decrease in interest rates typically lead to an increase in
net export spending? (Assume this economy is the only economy
that decreases interest rates.) Be complete.
Question 6 (7 points; 6 minutes)
The California economy, as measured by its real GDP, has been
growing about 3.5 percent per year. Analysts expect that
California’s economic growth will slow to about 2 percent per
year as the economy reaches full employment and labor
shortages appear.
Use one or more of these concepts to explain why analysts
would expect growth to slow: PPF, AD, actual real GDP,
potential real GDP.
(Inspiration:
https://mynewsla.com/business/2017/12/06/economic-uh-oh-for-california-growth-slows-employment-booms-housing-tight/)
Question 7 (15 points total; 13 minutes total)
San Francisco announced a new parking meter policy. Under the
old policy, the price for an hour of parking was fixed at
$2.50 per hour. Under the new policy, the price for an hour of
parking will vary, neighborhood by neighborhood, hour by hour,
depending upon how many parking places are available. If there
are lots of empty parking places when the price is $2.50 per
hour, the price for an hour of parking will be decreased. If
there are no empty parking places when the price is $2.50 per
hour, the price for an hour of parking will be increased.
A. (6points) At the right,
draw a supply and demand graph that captures the new policy.
Show an instance in which the price would be low. Show an
instance in which the price would be high.
B. (4 points) Analysts
working for San Francisco believe the new policy will increase
total revenue. Do we need to know the price-elasticity of
demand for parking in order to determine if the new policy
will increase revenue? Explain.
C. (5 points) Comparing
the old policy (fixed price) and the new policy (variable
price), what is the effect on consumer surplus at times when
there are lots of empty parking places at a price of $2.50 per
hour? At the right, sketch in the old and new CS. (Your graph
at the right is your defense of your answer.)
(Inspiration:
http://www.sfgate.com/bayarea/article/SF-set-to-become-first-U-S-to-price-metered-12393425.php
http://www.sfexaminer.com/transit-agency-approves-surge-pricing-lower-raise-parking-meter-costs/)
Question 8 (15 points total; 13 minutes total)
A recent study of taxes assessed on goods sold showed that
sellers will raise prices when taxes are increased, but do not
lower prices when taxes are decreased.
A. (10 points) Below, show
the effect of an increase in a tax on the price of output in
the short run and the long run, assuming the market is
perfectly competitive. Assume the tax is a constant dollar
amount. Assume the tax revenue is remitted to the government
by the seller. Use subscripts “1" to depict the initial
condition, subscripts “2" to depict the new short-run
equilibrium, and subscripts “3" to depict the new long-run
equilibrium.
B. (5 points) The result
of this recent study is surprising. One explanation the
authors offered for why businesses would not lower their
prices when taxes are lowered was that business owners are
loss averse. How might loss aversion explain the tendency of
businesses to increase prices when taxes are raised, but not
decrease prices when taxes are lowered. (No graph is required
for this part.)
(Inspiration:
https://t.co/ZvmxgG5TdG which expands to
https://www.law.ucla.edu/~/media/Assets/Tax%20Policy%20Colloquium/Documents/Spring%202017/Benzarti%20Final%20Paper.ashx)
Question 9 (13 points total; 12 minutes total)
Invention and innovation increases total factor productivity.
A recent study by Raj Chetty and co-authors found that those
people who become inventors are far more likely to have been
raised in families at the top 1 percent of the income
distribution than in median-income families. Further analysis
showed that an important underlying cause was that children in
high income families grew up meeting, knowing, and talking
with people who were themselves inventors, but that children
in median-income families had no such exposure to inventors.
Having childhood knowledge of the invention process, the
authors argued, makes someone far more likely to become an
inventor as an adult.
A. (8 points) Why should
the government be interested in a policy designed to encourage
invention and innovation? Why doesn’t the Coase Theorem apply
here?
B. (5 points) In light of
this study, suggest one policy that might be implemented to
encourage invention and innovation. Defend your suggestion.
(Inspiration:
https://www.theatlantic.com/business/archive/2017/12/innovation-income-chetty/547202/
citing
http://www.equality-of-opportunity.org/assets/documents/inventors_paper.pdf)
Question 10 (15 points; 13 minutes total)
Chain restaurants include places such as Olive Garden,
Cheesecake Factory, Kentucky Fried Chicken, Popeyes, Del Taco,
Subway, and many more.
A. (4 points) During the
2007-09 recession, sales at chain restaurants decreased. Would
you therefore characterize “meals at chain restaurants” as a
normal good or an inferior good? Defend your answer.
B. (1 point) Would you
characterize the chain restaurant industry as perfect
competition, monopolistic competition, or monopoly?
C. (5 points) Between the
end of the recession in 2009 and 2015, sales at chain
restaurants increased by 8 to 10 percent per year. That’s a
huge annual increase. Starting in about 2010, there have been
big increases each year in the number of chain restaurants.
Explain why increased sales would lead to increases in the
number of restaurants.
D. (5 points) Starting in
2016, “same store sales” have declined over time. “Same store
sales” excludes sales at stores that have entered or exited
the industry in the last year. “Same store sales” includes
only sales at stores (here, restaurants) that were in business
last year and this year. Would our usual analysis of
adjustment to long-run equilibrium have predicted this result?
Explain.
(Inspiration:
https://www.nytimes.com/2017/10/31/business/too-many-restaurants-wall-street.html)
Part III. Comprehensive Essay Question (60 points)
You are finishing up a fabulous internship at an online
news-and-opinion blog that focuses on economics issues. Your
supervisor has given you one last assignment: Write a piece
that provides some analysis of the Tax Cuts and Jobs Act
(TCJA, also known as the GOP Tax Plan). Your readers are
educated people who have an interest in and background
knowledge of economics. Your supervisor has been
impressed with the breadth and depth of your economic
knowledge and with your ability to write a clear and
compelling article. You don’t want to let your supervisor
down!
Based on conversations with your supervisor, you decided you
wanted to include the points below. You’re mostly happy with
the outline but might re-order things for better flow. You can
include visual representations of data as appropriate (a
figure can be worth a thousand words), but no “textbook
graphs” that illustrate economic concepts.
Preliminary Outline You Sketched Out for Yourself (which is
why you referred to yourself as “I”)
- Intro paragraph. Include a thesis statement here. Be
sure reader knows that the specifics of TCJA vary between
House and Senate versions (and are changing by the day),
so I’ll mostly focus on the broad outlines.
- Broad outlines that I’ll focus on: [1] lower taxes on
income (revenue - accounting costs) of corporations; [2]
eliminating taxes on wealth transfers (bequests) for
estates larger than $5 million; and [3] changes in taxes
for middle and lower income families (“change” because
it could be an income tax decrease, could be an
increase, depends on family location and circumstances)
- Provide a clear brief analysis of the effects of the tax
plan on long-run economic growth, unemployment, inflation,
and inequality. It probably will be most clear if I
separately analyze the effects of each of the three things
in my broad outline. I’ll have to think about what flows
better: grouping by what’s being affected (LR growth,
unemployment, etc) or grouping by aspect of the tax bill
(corporate taxes, wealth taxes, income taxes).
- Discuss what the Fed will likely do in response. Here I
need to focus especially on the predicted net effects on
unemployment and inflation. I should be sure to explain
(briefly anyway) what the Fed’s mandate is, and why they
consider unemployment and inflation in determining policy.
Important here to distinguish between today’s inflation,
anticipated inflation, and inflationary expectations.
- There are lots and lots of particular provisions in the
bills. To make my article more compelling, I’ll choose one
particular provision and analyze it.
- Best place to find information needed here: Joint
Committee on Taxation (https://www.jct.gov/) and
especially
https://www.jct.gov/publications.html?func=startdown&id=5031
(House bill, “Description of H.R. 1") and
https://www.jct.gov/publications.html?func=startdown&id=5032
(Senate bill, “Description of the Chairman’s Mark of
TCJA”)
- I’ll choose just one particular provision out of all
that is in those two documents. Almost everything in the
bill is the elimination (or change) of the amount of tax
credit or deductibility (a subsidy) that taxpayers
currently receive for spending on some particular
thing. After I choose what one provision I will
focus on, I want to discuss what particular (micro)
market that provision will affect, what the effect is
likely to be, and whether or not there had been a
justification for the existing (pre TCJA) provision
based on the existence of externalities. (For
instance, if the bill suggests eliminating the ability
to deduct from taxes a taxpayer’s spending on X, what
will that do to prices and quantities in the market for
X? And, is there an externality associated with spending
on X that had justified the existing ability to deduct
spending for X from one’s taxable income?)
- Offer a conclusion: Is the TCJA good or bad for the US
economy? That’s a normative question, so I better state
what I think the goal ought to be.
This
is the final from Prof. Olney's Fall 2016 offering of
Economics 1.
The exam was administered in two parts (Parts I & II during the final exam
period; Part III due during RRR week).
Part I.
Questions Covering the Last Third of the Course (58
points total; 45 minutes total)
Question 1 (10 points; 8 minutes)
Since the November 8 election, the dollar has
strengthened by about 10 percent against the Mexican
peso and by about 4 percent against the Euro. Explain
how the following two events can account for these
changes in the strength of the dollar.
• Event A:
Long-term interest rate in the US – but not in other
countries – have increased by about ½ percentage point
since November 8
• Event B:
President-Elect Trump's campaign comments about trade
between Mexico and the US have led to the widely-held
expectation that Mexican exports to the US will decrease
markedly in 2017
Question 2 (15 points total; 11 minutes total)
In normal times, banks hold very low levels of excess
reserves.
A. (6 points) In normal times, what do
banks typically do with their excess reserves? In
normal times, approximately what amount of excess
reserves do banks typically hold?
B. (9 points) In normal times, what is
the effect of an increase in the interest rate on excess
reserves (IOER) on the federal funds rate (FFR)?
Explain. Supplement your answer with a graph of the
federal funds market.
Question 3 (10 points; 8 minutes)
Large increases in government spending for
transportation infrastructure projects will have a
smaller effect on U.S. GDP in 2017-18 than the same size
projects would have had in 2008-09. Referring to
article #25 (“How Powerful are Fiscal Multipliers in
Recessions?” by Alan Auerbach and Yuriy Gorodnichenko),
explain why.
Question 4 (10 points total; 8 minutes total)
Suppose the Taylor rule is
interest rate target = 3 - 2*(actual unemployment
- 4 ) + 1*(actual inflation rate - 2 )
A. (3 points) According to this Taylor
rule, what are the values of the neutral interest rate,
the central bank's goal for the unemployment rate, and
the central bank's goal for the inflation rate? (No
explanation needed.)
B. (7 points) Suppose the actual
unemployment rate is 9 and the actual inflation rate is
0. What is the FFR target predicted by this Taylor
Rule? Traditionally, would the central bank have a FFR
target equal (or approximately equal) to the rate
predicted by the Taylor Rule? Explain.
Question 5 (13 points total; 10 minutes total)
Ruby, a small business owner, is considering buying
additional machinery for her company. She has been
denied a loan by the bank and is considering financing
the purchase with her credit card. The interest rate
charged by the bank for a loan is 8 percent. The credit
card interest rate is 22 percent.
A. (6 points) Should she buy the
machinery? Explain your answer.
B. (7 points) The Presidential
election results surprised Ruby. She now thinks
inflation in 2017 - 2020 will be about 5 percent rather
than the 2 percent she had been expecting. Does
her change in expectations affect her decision to buy
the machinery? Explain.
Part II. Questions Covering Any Part of the Course
(82 points total; 62 minutes total)
Question 6 (10 points; 8 minutes)
There are two groups of companies that can sell a
product. Companies in both groups face a typical
upward sloping marginal cost curve. But for group
A, their minimum average variable cost is $8 and for
group B, their minimum average variable cost is
$50. There are a large number of companies in each
group. Draw the market supply curve for this
product. Explain why you drew the Supply curve as
you did. Why will $50 be the market price for this
product over a wide range of demand curves?
Question 7 (15 points total; 11 minutes total)
Consider two economies. The sets of equations
below describe Economy A and Economy B respectively.
Economy A
C = 100 + 0.6YD
I = 200 + 0.2Y
G = 300
EX = 400
IM = 150 + 0.1Y
TA = 500
TR = 300
Economy B
C = 100 + 0.6YD
I = 200 + 0.2Y
G = 300
EX = 400
IM = 150
TA = 500
TR = 300
A. (8 points) In which economy --
Economy A or Economy B -- is the spending multiplier
larger? Explain your answer. In your answer,
be sure you describe the multiplier process.
B. (7 points) Is the formula 1 /
(1-mpc) the correct formula for the multiplier in either
Economy A or Economy B? Explain your answer.
Question 8 (6 points; 5 minutes)
A state government offers a company $7 million if it
will decrease the number of employees by 1,600 rather
than by 2,400. In 2016 the company had 3,000
employees. In 2017, the company will have 1,400
employees and receive $7 million from the state
government.
• From one
perspective, the company is being paid $7 million for
reducing its workforce by 1,600 employees.
• From another
perspective, the company is being paid $7 million for
increasing employment by 800 employees.
What is the proper counterfactual statement to use to
evaluate the effectiveness of this policy of paying this
company $7 million? Defend your answer.
Question 9 (15 points total; 11 minutes total)
Two policies are being considered to subsidize college
educations at public universities such as Berkeley.
• Policy A:
Use tax revenues to pay subsidies equal to the cost of
tuition to all students.
• Policy B:
Use tax revenues to pay subsidies equal to the cost of
tuition to students whose families earn less than
$125,000 per year.
A. (6 points) Use the concept of
externalities to explain why subsidizing college
education makes economic sense.
B. (9 points) Which policy -- Policy A
or Policy B -- is more likely to generate the socially
optimal quantity of public university graduates?
Defend your answer. In your defense consider the
price elasticity of demand for college education.
Distinguish (if appropriate) between the price
elasticities of the two groups of students -- those
whose families earn more than $125,000 per year, and
those whose families earn less than $125,000 per year.
Question 10 (36 points total; 27 minutes total)
Manufacturers of goods buy parts that are used in
production. For example, car manufacturers buy
engines that are produced by other companies, and then
put those engines into the cars they are manufacturing
and selling.
Suppose the parts that American manufacturers buy are
produced in two places: in the US, or in other
countries. You should think of those as two
separate markets: the market for US produced parts, and
the market for imported parts. Both markets for parts
are perfectly competitive. The US-produced parts and
imported parts are perfect substitutes. Currently,
American goods manufacturers buy a mix of US-produced
parts and imported parts.
President-Elect Trump has suggested implementing a 35
percent tariff (tax) on imported goods. A 35 percent
tariff (tax on imports) means an imported part that had
cost $1 to a US manufacturer would now cost $1.35, but
the American-produced part would still cost just
$1. The tariff is paid to the US federal
government by the buyer. Assume there is currently
no tariff, as is characteristic of a "free trade zone."
A. (10 points) Assume the
parts-producing firms are initially in long-run
competitive equilibrium. What is the short-run
effect of the implementation of a 35 percent tariff on
the price of parts imported from Mexico? On the
profits of a typical Mexican company that produces
parts? Explain and illustrate your answers.
B. (8 points) What is the short-run
effect of the tariff on the price of parts produced in
the US? Explain and illustrate your answer.
C. (10 points) What is the effect of
the tariff on the inflation rate in the US? On the
Phillips Curve? Explain your answers. Illustrate your
Phillips Curve answer.
D. (8 points) Given the Fed's dual
mandate, what is the Fed likely to do in response to the
implementation of a steep tariff? What is the
likely effect on the Fed's monetary policy action on
employment? Why does the mix of doves and hawks on the
FOMC affect your answer? Explain your answers.
Part III. The Comprehensive Essay Question
(60 points)
You’ve decided to submit an op-ed to a reputable
news-source read by millions of people around the world.
You are going to offer your opinion of what the Fed
should do at its December 13-14, 2016 FOMC meeting in
light of the heightened uncertainty in the US economy
post-November 8. Your readers are educated people who
have only a rudimentary knowledge of economics.
The editor who will decide whether to publish your op-ed
needs to be impressed with the breadth and depth of your
economic knowledge and with your ability to write a
clear and compelling article.
You sketched out the outline below. You can include
visual representations of data as appropriate (a figure
can be worth a thousand words), but the news source you
are writing for doesn’t allow graphs that illustrate
economic concepts. Clarity matters most. Your goal
is to have your article accepted for publication and to
persuade readers to your point of view.
Outline
• Uncertainty is greater
post-election. Things seem to change daily.
I could capture two aspects of the uncertainty:
• Fiscal policy, interest rates,
inflation. Increased infrastructure spending ,
increased military spending, and tax cuts have been
proposed. (Details may still be missing.)
I should discuss the implications of such a package of
fiscal policies for employment & inflation, while
noting the uncertainty around what will actually
happen.
• Trade policy. Again, lots of
uncertainty, but the talk has been about renegotiating
trade policies and reducing US imports. Eliminating
free trade zones would increase price of US exports to
foreigners. I should outline the possibilities here.
• Effects of
uncertainty. There are several points I want to
make here so this section will probably be long.
Effect of heightened uncertainty on aggregate investment
spending. Effects on banking and lending, perhaps
through impact on asymmetric information. Effect on the
strength of the dollar vis-à-vis foreign currencies.
Effect on aggregate consumption and saving. And
effect on inflationary expectations.
• Now, monetary policy. I should
first discuss Federal Reserve monetary policy in general
terms. What are the Fed’s goals? What data do they
examine in deciding policy? Why have they been planning
to raise rates in any case?
• Then comes my recommendation and its
defense: Should the Fed raise rates at its December
13/14 meeting. Why?
• As part of my defense, I should
explain the expected effects of a rate increase on
real GDP. Will the Fed’s actions slow growth, or
trigger recession? I need to be sure to consider
confounding factors: is anything raising expected
rates of return on investment projects? What is
happening to interest rates set by central banks in
Europe and Asia? What other factors might affect real
GDP?
• The other part of my defense (or a
caveat?) should be distribution. The US election
certainly underscored the importance of class issues,
which economists usually refer to as “distributional
issues.” I need to explicitly address how my
recommendation would affect workers in areas that used
to be centers of manufacturing.
• Conclusion
paragraph: I need a concluding paragraph that wraps up
the article and reiterates my recommendation.
This
is the final from Prof. Olney's Fall 2015 offering of
Economics 1.
The exam was administered in two parts (Parts I & II during the final exam
period; Part III due during RRR week).
Part I. Questions Covering the Last
Third of the Course (50 points total; 35 minutes total)
Question 1 (14 points total; 10 minutes total) This
question is based on article #21, "How Powerful are Fiscal
Multipliers in Recessions?" by UC Berkeley Professors Alan
Auerbach and Yuriy Gorodnichenko.
a. (4 points) According to the article by
Auerbach and Gorodnichenko (A&G), during what part of the
business cycle is the government spending multiplier
relatively large? When is it relatively small?
b. (10 points) Auerbach and Gorodnichenko
(A&G) estimate that the multiplier was about 0 in the
early 1960s. If the economy is on the PPF, why would an
increase in G have no effect on GDP? How is the rate of
long-run GDP growth relevant to your answer? Draw a PPF
that supports your explanation.
Question 2 (12 points total; 8 minutes total) The Phillips
curve has a downward slope because, ceteris paribus, there is
a tradeoff between unemployment and inflation.
a. (4 points) Why is a drop in
unemployment associated with a rise in the inflation rate?
b. (8 points) Offer and defend one
explanation for why the Phillips curve may be flatter today
than it was twenty years ago.
Question 3 (10 points; 7 minutes) Japan's economy has
been in or near recession for over 15 years. The
interest rate controlled by Japan's central bank, the Bank of
Japan, has been at or near the zero lower bound (ZLB) since
1998. Why is expansionary fiscal policy an important
policy tool when interest rates are at the ZLB? Explain
why and how expansionary fiscal policy will affect the
government's budget deficit.
Question 4 (14 points total; 10 minutes total) The
Taylor Rule is a simple equation that describes the connection
between macroeconomic conditions and a central bank's interest
rate target. In general the Taylor Rule is
interest rate
target = neutral interest rate + A*(actual -
target inflation) + B*(actual - target GDP growth rate)
a. (4 points) What does "neutral interest
rate" mean?
b. (10 points) New Zealand (NZ) and
Australia (AUS) each have their own central bank.
Estimates of the Taylor Rule for each country, for 1992-2008,
are (source:
http://www.rbnz.govt.nz/research_and_publications/analytical_notes/2013/an2013_04.pdf)
•
NZ: interest rate
target = 6.7 + 0.5*(actual - target inflation) + 0.5*(actual -
target GDP growth rate)
•
AUS: interest rate
target = 5.9 + 0.4*(actual - target inflation) + 0.8*(actual -
target GDP growth rate)
Define "inflation hawk" and "inflation
dove." Which country's central bank – New Zealand or
Australia – was more relatively hawkish over the 1992-2008
period? Defend your answer.
Part II. Questions Covering Any Part of the Course (90
points total; 64 minutes total)
Question 5 (10 points; 7 minutes) The local electricity
company, PG&E, wants to increase its total revenue earned
from selling electricity to residents of the Bay Area.
Should PG&E increase or decrease the price it charges for
electricity? Explain. If you need to make an
assumption in order to answer the question, do so explicitly
and defend your assumption.
Question 6 (18 points total; 13 minutes
total) Suppose interest rates decline.
a. (8 points) Explain why the decline in
interest rates raises investment spending. Does your
answer depend upon whether the business is using internal
funds (accumulated savings) or external funds (a loan)?
Explain why.
b. (10 points) Consider a business in a
perfectly competitive industry that is initially at long-run
competitive equilibrium. The business purchases
additional machinery, which increases labor
productivity. None of its competitors buy the
machinery. Under what circumstances would you expect
this business to now be earning abnormal profit? Show
the effect in a graph of the firm that includes its short-run
cost curves. Explain what you've drawn and how it
relates to your answer to the question.
Question 7 (25 points total; 18 minutes total) All U.S.
consumers have a FICO score, which is a measure of the
likelihood the individual will make regular and timely
payments on a loan or credit card. The FICO score allows
lenders to screen potential borrowers, charging higher
interest rates or denying credit to those who have bad FICO
scores.
Suppose hackers break into the computer system that produces
FICO scores. As a result of the hack, the FICO score
assigned to any individual is probably wrong. Lenders know the
system has been hacked.
a. (10 points) What is the likely
effect of the hacking on consumer credit availability?
Why? Your explanation should make reference to the
concept of asymmetric information.
b. (5 points) In general, what is the likely
effect of the hacking on consumption spending? Why?
c. (10 points) Families that can borrow or
use credit cards don't have to cut their consumption spending
as much following a lay-off or wage cut as do families that
can't borrow or use credit cards. Consumer credit
availability therefore probably matters more to consumption
during a recession than it does during an expansion.
Consider the effect of the FICO-system hack on real GDP.
Will the effect of the hack on GDP be greater in a recession
or in an expansion? Explain. Your explanation
should make reference to the concepts of marginal propensity
to consume and the multiplier.
Question 8 (20 points total; 14 minutes total) The North
America Free Trade Agreement (NAFTA) was implemented in
1994. NAFTA eliminated all trade barriers between
Canada, the U.S., and Mexico allowing for tariff-free trade
between the three countries. NAFTA was and remains quite
controversial.
a. (10 points) Arguments in favor of NAFTA
point to the gains from trade. What does it mean for
there to be "gains from trade"? What are the conditions
under which there will be gains from trade? Your answer
should make reference to the concept of comparative advantage.
b. (10 points) Arguments against NAFTA point
to the costs of trade. For instance, the Economic Policy
Institute in Washington DC argues
[NAFTA] caused the loss of some 700,000 jobs as production
moved to Mexico. Most of these losses came in California,
Texas, Michigan, and other states where manufacturing is
concentrated. To be sure, there were some job gains along the
border in service and retail sectors resulting from increased
trucking activity, but these gains are small in relation to
the losses, and are in lower paying occupations.
(http://www.epi.org/blog/naftas-impact-workers/)
Explain how increased trade could cause a
loss of U.S. manufacturing jobs. What is a negative
effect of the loss of manufacturing jobs?
Question 9 (3 points, 2 minutes)
When you purchase 100 shares of stock in General Electric (a
U.S. manufacturing company), is that investment?
Explain.
Question 10 (14 points total; 10 minutes total) Just try
finding a place to park a car in downtown Berkeley this time
of year. The price of parking is $3 per hour. You
can park for 2 hours. If you park more than 2 hours, the
price jumps: you get a $55 parking ticket. Before
the holiday season, most people park for about 90 minutes and
then move their car.
a. (5 points) Compare high-income and
low-income parkers. You can assume high-income people
have income of more than $100 per hour, while low-income
people earn minimum wage which is $11 per hour in Berkeley and
$9 per hour in the rest of the Bay Area. Which group is
receiving more consumer surplus from parking before the
holiday season? Briefly (1-2 sentences), explain why.
b. (9 points) Explain why the increased
demand for parking at this time of year will result in more
parking tickets, but only for high-income people not for
low-income people. Supplement your answer with a graph of a
person’s demand for parking places. Show separately the
demand by a high-income person and the demand by a low-income
person. Assume the increase in demand for parking at the
holidays is the same for both high-income and low-income
people. Vertical axis: price per hour of parking.
Quantity axis: # of hours a particular person wants to park.
Part III. The Comprehensive Essay Question (60
points)
Congratulations! You snagged a great job writing for one
of the country’s best newspapers. Your first feature
story is about the expected increase in interest rates that
almost everyone expects the Fed to announce on December
16. Because you are new to the paper, you want to
impress your bosses with the breadth and depth of your
economic knowledge and with your ability to write a clear and
compelling article. Your readers are educated people who
have only a rudimentary knowledge of economics.
You’ve sketched out your outline (below), which you’ll use to
guide your writing. You’ve decided you might include
visual representations of data where appropriate (a figure can
be worth a thousand words), but the newspaper you write for
doesn’t allow graphs that illustrate economic concepts.
Clarity is what matters most to your readers (and thus to your
bosses).
Outline
• Intro paragraph. It’s not a mystery
novel; I need an intro paragraph that does a good job of
letting readers know what I’ll discuss in the article
• Set the stage by discussing Federal
Reserve monetary policy in general terms. What are the
Fed’s goals as they set monetary policy? What economic data
does the Fed consider when setting interest rates? Why
does the Fed want to return the federal funds rate to its
neutral rate before the next recession begins?
• Now add some context. Why and when
did the Fed lower rates as far as they did, and why have they
kept them low for so long? Put the Great Recession in
historical context: In what ways was the 2007-2009
downturn different from most other downturns since the
1970s? How has the recovery been different from
recoveries following previous recessions?
• The Fed will probably raise rates after
its December 15/16 meeting. Why now? Why not earlier
this year? Why not wait another year?
• The Fed’s inflation target is 2
percent. Why aren’t they waiting until inflation
approaches 2% before raising rates? Start by noting what’s
actually been happening to inflation rates (best to
distinguish here between the all-items CPI inflation and
inflation for some of the expenditure sub-categories).
Then I can draw on micro principles to explain why increased
global competition limits the ability of firms to increase
prices in response to changes in demand or in costs of
production.
• Now comes the really important part of the
article: Explain the expected effects of a rate increase on
aggregate demand and real GDP. Will the Fed’s actions
slow growth, or trigger recession? I need to be sure to
consider confounding factors: is anything raising expected
rates of return on investment projects? What is happening to
interest rates set by central banks in Europe and Asia?
• Since the Occupy Movement of 2011,
distributional issues have been of interest to a lot of
people. I better take time to consider whether increased
interest rates have differential impacts on different groups
in the economy.
• Conclusion paragraph: I need a concluding
paragraph that wraps up the article and lets readers know what
to expect in coming months