Unemployment, Inflation, and Long-Run Growth: Hapter Objectives
Unemployment, Inflation, and Long-Run Growth: Hapter Objectives
Unemployment, Inflation, and Long-Run Growth: Hapter Objectives
Unemployment, Inflation,
and Long-Run Growth
C hapter objectives:
1. Define the labor force and the unemployment rate and give the official definition
of employment. Describe the limitations of the unemployment rate statistic,
outlining the effects of “discouraged workers” on official unemployment
statistics.
2. Distinguish among, and give examples of, frictional, structural, and cyclical
unemployment. Define the natural rate of unemployment and describe the
economic and social costs of unemployment.
3. Define inflation. Outline the problems of price indexes such as the Consumer
Price Index.
4. Indicate who gains and who loses from inflation. Distinguish between anticipated
and unanticipated inflation and indicate how their impacts on the economy differ.
Describe the concept of the real interest rate and outline the effect of anticipated
inflation on it.
5. Detail the factors influencing output growth.
This chapter concludes the sequence of three largely definitional chapters, looking at two short-run
concepts (unemployment and inflation) and two long-run concepts (output growth and productivity
growth). A working knowledge of these concepts is essential when you study policy formulation in
subsequent chapters.
BRAIN TEASER: Probably, you don’t habitually play your car audio at maximum volume—there’s an
ideal level that holds some additional capacity in reserve. The same principle is true for the economy. A
normally functioning economy has some excess capacity and some rate of unemployment. This rate of
unemployment is the natural rate of unemployment. In 1950, this natural rate was estimated to be 4%.
Since then, the natural rate of unemployment has risen, with the President’s Council of Economic
Advisers placing it at 6.5% in 1986. The expectation was that it would continue to increase. Why did the
natural rate of unemployment increase in the latter part of the twentieth century? Is it still increasing?
161
162 Study Guide to Principles of Macroeconomics
OBJECTIVE 1:
Define the labor force and the unemployment rate and give the official definition of employment.
Describe the limitations of the unemployment rate statistic, outlining the effects of “discouraged
workers” on official unemployment statistics.
The labor force totals the employed and unemployed. The employed include any person 16 years of age
or older who:
The unemployed person must be available and looking for work during the previous four weeks.
Otherwise, s/he is considered to be out of the labor force. Some workers, discouraged by their inability to
find jobs, stop looking for work and drop out of the labor force. (page 123 [435])
The unemployment rate is the ratio of unemployed persons (who have no job and are actively
seeking employment) to the labor force. An analysis of unemployment reveals large ethnic, gender, and
regional differences in unemployment rates. (page 124 [436])
LEARNING TIP: Remember that to be officially “unemployed,” a member of the labor force must not have
a job or recently have had a job, and must be looking actively for work. Behind this distinction is the concept
of the “discouraged” worker. Memorize the definitions of unemployment rate, participation rate, inflation,
and the three types of unemployment and their causes.
Practice
The population of Arbez is 150,000, of which 100,000 are aged 16 or older. Of this 100,000, 60,000 have
jobs and 40,000 do not. 20,000 are unemployed but actively seeking jobs, and there are 20,000 who have
given up the job search in frustration.
4. Typically, workers in a fishing-gutting factory have a high rate of absenteeism. Phyllis the
Filleter has been “off sick” this week. She is correctly classified as
(a) employed.
(b) unemployed.
(c) a discouraged worker.
(d) not in the labor force.
ANSWER: (a) If Phyllis is temporarily absent, with or without pay, she is considered employed.
Refer to p. 124 [436].
6. In Arbez, there are 80,000 persons in the labor force, and the unemployment rate is 25%. As the
economy moves out of a long recession and job openings increase, 5,000 discouraged workers
become “encouraged” and begin searching for a job. The unemployment rate will become
(a) 18.75%.
(b) 23.5294%.
(c) 29.4118%.
(d) 31.25%.
ANSWER: (c) Initial unemployment rate = 25% = unemployed/80,000. The number
unemployed is 20,000. When 5,000 new (unemployed) workers enter the labor
force, the unemployment rate = 25,000/85,000 = 29.4118%.
7. The nation of Regit has a population of 1 million citizens. The labor-force participation rate is
80%. The number of Regitanis with jobs is 728,000. The unemployment rate is
(a) 7.20%.
(b) 8.00%.
(c) 9.00%.
(d) 9.89%.
ANSWER: (c) The unemployment rate = unemployed ÷ labor force = 72,000/800,000 = 0.09.
Labor force = participation rate × population = 0.8 × 1,000,000 = 800,000.
Unemployed = 800,000 – 728,000 = 72,000.
164 Study Guide to Principles of Macroeconomics
8. The nation of Noil has a population of 1 million citizens. The labor-force participation rate is
80%. 50,000 persons are unemployed in March. By June, 10,000 persons have given up seeking
employment. This is the only change over the quarter. We can conclude that the unemployment
rate was
(a) 6.25% in March and 7.50% in June.
(b) 6.25% in March and 6.25% in June.
(c) 6.25% in March and 5.06% in June.
(d) 5.00% in March and 6.25% in June.
ANSWER: (c) In March, the unemployment rate = unemployed ÷ labor force = 50,000/800,000
= 0.0625. In June, the unemployment rate = unemployed ÷ labor force =
40,000/790,000 = 0.05063, or 5.06%.
OBJECTIVE 2:
Distinguish among, and give examples of, frictional, structural, and cyclical unemployment.
Define the natural rate of unemployment and describe the economic and social costs of
unemployment.
The first two types of unemployment are inevitable in a healthy, dynamic economy. Together,
they comprise the rather imprecise concept of the natural rate of unemployment—the rate of
unemployment that occurs during the normal operation of the economy. Full employment doesn’t imply
zero percent unemployment. (page 129 [441])
Recessions and cyclical unemployment result in lost output and adverse social consequences
(broken homes, alcoholism, and suicide), and lower investment and economic growth. (page 129 [441])
LEARNING TIP: Think of full employment as being 100% employment minus the natural rate of
unemployment. The economy may have a lower or higher rate of employment than 94 to 96%, but such a
divergence will be temporary. Note that, even when unemployment is greater than zero, society can still be at
a point on (not inside) its production possibilities frontier.
Chapter 7 [22]: Unemployment, Inflation, and Long-Run Growth 165
ECONOMICS IN PRACTICE: On page 127 [439], the textbook looks at the increasing role of women in the
labor market, with the female labor force participation rate expanding from 36% in 1955 to 60% in 1996.
The male rate declined from 85% to 75% during the same time period. What might have caused the male
participation rate to decrease? Also, by examining Table 7.2 (22.2), we can see that female
unemployment rates are consistently lower than the rates for comparable males. Can you suggest why?
ANSWER: The male labor force participation rate may have decreased as married couples swapped roles,
with more men staying home as women went out to work. This is, at best, a partial explanation because
participation rates for single males have also declined. Many non-participating single males live with
parents or others who provide support for them. In addition, a growing number of males receive
disability payments.
Unemployment rates for females may be lower than those for males because female workers are “better”
in some way—more reliable, quicker to learn, or willing to accept lower wages. An alternative (but not
mutually exclusive) explanation is that some females remain in the role of the secondary wage-earner. If
this type of marginal worker loses her job she may be more likely to become “discouraged,” drop out of
the labor force, and no longer be counted as unemployed.
Practice
9. Unemployment caused by short-run job/skill matching problems is
(a) frictional unemployment.
(b) structural unemployment.
(c) cyclical unemployment.
(d) natural unemployment.
ANSWER: (a) Refer to p. 129 [441] for the definition of frictional unemployment.
11. During the Great Depression of the 1930s, many laborers found great difficulty finding a job.
They were
(a) frictionally unemployed.
(b) structurally unemployed.
(c) cyclically unemployed.
(d) discouraged workers.
ANSWER: (c) In the 1930s, demand was low throughout the economy.
12. The unemployment rate that occurs as a normal consequence of the efficient functioning of the
economy is the
(a) frictional rate of unemployment.
(b) structural rate of unemployment.
(c) cyclical rate of unemployment.
(d) natural rate of unemployment.
ANSWER: (d) Refer to p. 129 [441]. This rate includes both frictional and structural
unemployment.
166 Study Guide to Principles of Macroeconomics
13. For many years, Noil was a traditional agrarian economy, specializing in rice production. In the
past few years, however, due to loans from the World Bank, Noil has developed a thriving
industrial sector, and farming (although increasingly mechanized) has declined. We would
conclude that, over the past few years, frictional unemployment has and structural
unemployment has .
(a) increased; increased
(b) increased; decreased
(c) decreased; increased
(d) decreased; decreased
ANSWER: (a) As the economy’s structure is changing, new skills are being required and old
skills are becoming obsolete—structural unemployment is increasing. As skills
become more specific and more complex, the search time to find a suitable job
increases—frictional unemployment increases.
OBJECTIVE 3:
Define inflation. Outline the problems of price indexes such as the Consumer Price Index.
Inflation is a rise in the overall price level. It can be measured by a price index (such as the Consumer
Price Index). The CPI and most other price indexes are based on a typical “basket” of commodities and
measure how the price of the basket changes over time. Clearly, the effectiveness of a fixed-weight price
index like the CPI depends on how well its basket of commodities reflects the economy as time passes
and prices change. Research has suggested that the CPI overstates the increases in the cost of living. The
Chained Consumer Price Index, which uses charging weights, attempts to correct for the bias introduced
as consumers shift away from high-priced goods. (page 130 [442])
LEARNING TIP: The Consumer Price Index has a base year that is assigned an index value of 100. Use the
following formula to calculate the price index for a given year:
price of bundle in given year
price of bundle in base year × 100 = price index
In the base year itself, the index is 1.00 × 100, or 100. An index of more than (less than) 100 in a given year
indicates that prices are more than (less than) those in the base year.
LEARNING TIP: Be careful! If the CPI rises from 120 to 132, the rate of inflation is not 12%, but 10% [(132
– 120)/120]. Don’t just subtract one value from the other—be sure to divide by the value of the first year’s
price index.
Practice
14. If the CPI is 120 in Year 1 and 135 in Year 2, what is the percentage change in the price level
from Year 1 to Year 2?
(a) 12.5%
(b) 15%
(c) 20%
(d) 35%
ANSWER: (a) The price index changes by 15 relative to the initial price level of 120 so (15/120)
× 100 = 12.5%.
Chapter 7 [22]: Unemployment, Inflation, and Long-Run Growth 167
OBJECTIVE 4:
Indicate who gains and who loses from inflation. Distinguish between anticipated and
unanticipated inflation and indicate how their impacts on the economy differ. Describe the
concept of the real interest rate and outline the effect of anticipated inflation on it.
Costs of inflation are difficult to measure. Inefficiencies occur, and administrative costs increase. Also,
capital investment may decrease, affecting the economy’s long-term growth rate. Losers include those on
fixed incomes and lenders (creditors), whereas winners include borrowers (debtors). Indexation,
adjustable rate mortgages, and cost of living adjustments (COLAs) reduce the impact of inflation—in
fact, such corrective devices were introduced specifically because inflation had been causing adverse
redistributional effects. Unanticipated inflation is more troublesome than anticipated inflation when we
consider the distribution of income. By definition, if inflation is anticipated, its presence can be
incorporated into contracts and agreements. Unanticipated inflation, on the other hand, is a surprise that
will injure some and benefit others. Lenders, for instance, tend to lose when inflation is unexpectedly
high. (page 132 [444])
LEARNING TIP: Common sense should help you work out who wins and who loses during inflation; if it
doesn’t, memorize this part of the chapter! Note that the difference between the market interest rate and the
real interest rate is defined in the textbook as the inflation rate, but the associated example refers to the
anticipated inflation rate. The market interest rate is determined by the anticipated inflation rate.
LEARNING TIP: Despite some “menu costs” (the costs of changing price tags, printing new catalogs, etc.),
fully anticipated inflation is not much of a problem. Rational economic behavior can continue. However,
when the rate of inflation is variable and unpredictable, persons run the risk of making “bad” deals and try to
compensate by overestimating wage claims and price increases. Adding this safety margin fuels the fires of
inflation.
Practice
15. Inflation is expected to run at 10% this year. Instead, it slows to 3%. This change will hurt
(a) creditors.
(b) debtors.
(c) creditors and debtors equally, because it’s the same for both parties.
(d) neither, because inflation is lower.
ANSWER: (b) If inflation is higher than expected, creditors lose because they will fail to
compensate themselves through a higher interest rate. When inflation is lower
than expected, debtors lose because they are paying an interest rate that is “too
high.”
16. Inflation is expected to run at 10% this year. Instead, it slows to 3%. This year, there has been
(a) an anticipated deflation.
(b) an unanticipated deflation.
(c) an anticipated reduction in inflation.
(d) an unanticipated reduction in inflation.
ANSWER: (d) The change was not expected. This is not a deflation—the price level is still
rising at 3% a year. A deflation occurs when the price level (not the rate of
increase in the price level) falls.
17. Inflation is expected to run at 10% this year. The real interest rate is 4%. This year, the market
interest rate is . If, during the year, the actual inflation rate is 4%, lose.
(a) 6%; lenders
(b) 6%; borrowers
168 Study Guide to Principles of Macroeconomics
19. The difference between the interest rate a bank charges on a loan and the inflation rate is
(a) the profit margin.
(b) the real interest rate.
(c) the anticipation markup.
(d) the nominal interest rate.
ANSWER: (b) Refer to p. 133 [445] for this definition.
OBJECTIVE 5:
Detail the factors influencing output growth.
Output requires inputs. The two major inputs are capital and labor. The nation’s rate of growth depends
on the rate of increase in the quantity of capital and labor and on improvements in the productivity of
these resources. Positive net investment increases the stock of capital whereas the labor force can be
increased by either an increase in population or the labor-force participation rate. The productivity of a
resource can be increased by providing a greater quantity and quality of complementary resources—labor
productivity will increase if workers have better machines. In addition, the productivity of a resource will
rise through greater efficiency and, in the case of labor, through improvements in human
capital. (page 134 [446])
Practice
20. Output growth depends on each of the following EXCEPT
(a) positive net investment.
(b) an increasing consumer price index.
(c) the growth rate of human capital per worker.
(d) an increase in the labor-force participation rate.
ANSWER: (b) Refer to p. 134 [446]. Output depends on availability and usage of resources.
BRAIN TEASER SOLUTION: Demographic changes, government policy, and structural change have
affected the natural rate of unemployment. As the 1950s turned into the 1960s and 1970s, greater
numbers of teenagers, minorities, and women entered the labor market. These groups typically face
poorer employment opportunities. Unemployment insurance reduced the pressure to get another job
immediately—workers waited longer to find the “right” job. Two income families similarly reduced the
need for the “breadwinner” to be employed. In addition, the increasing pace of technological change
reduced the likelihood that an employee would stay with the same firm, or even in the same industry,
throughout his working life. New job skills would need to be learned.
By the end of the century the trend had reversed somewhat. The baby-boomers (still a large fraction of the
labor market) are embedded in stable jobs, looking toward retirement.
PRACTICE TEST
I. MULTIPLE-CHOICE QUESTIONS
1. A newly qualified dental school graduate, Phil McCafferty, is looking for a place to set
up practice. He is unemployed.
(a) frictionally
(b) structurally
(c) cyclically
(d) residually
3. Francine loses her job because of the introduction of labor-saving machinery. Because
she has few marketable skills, she stops looking for work. We would consider her to be
unemployed.
(a) cyclically
(b) frictionally
(c) structurally
(d) None of the above
4. Labor-saving robots are introduced into a car assembly line. The resulting unemployment
is
(a) frictional.
(b) structural.
170 Study Guide to Principles of Macroeconomics
(c) mechanical.
(d) cyclical.
6. Recently, a flood of cheap computer chips has poured over the border from Arboc to
Arbez. Thousands of workers in the Arbezani computer chip industry have lost their jobs.
This unemployment is best described as
(a) frictional.
(b) structural.
(c) competitive.
(d) cyclical.
7. Oliver Sudden has been jobless for the last six weeks, and he is still looking for the right
job. He has job offers that are appropriate for his skills and that pay well. He is
(a) frictionally unemployed.
(b) structurally unemployed.
(c) cyclically unemployed.
(d) a discouraged worker.
10. The Consumer Price Index has risen from 110 to 121 during the last year. We should
estimate the annual inflation rate for the last year at about
(a) 9.1%.
(b) 10%.
(c) 11%.
(d) 12%.
Chapter 7 [22]: Unemployment, Inflation, and Long-Run Growth 171
11. With unanticipated inflation, there will be all of the following EXCEPT
(a) greater risks involved in long-term contracts.
(b) less investment.
(c) more rapid growth in the economy.
(d) falling real rewards for lenders.
12. Your real wage has risen by 3% whereas the inflation rate has risen by 7%. Your nominal
wage must have
(a) risen by 4%.
(b) risen by 10%.
(c) fallen by 4%.
(d) fallen by 10%.
13. As the economy moves out of a recession, the discouraged-worker effect will tend to
the unemployment rate.
(a) increase
(b) decrease
(c) leave unaffected
(d) have no influence on
14. Which of the following statements about the labor market is true?
(a) Discouraged workers are those workers who have voluntarily chosen to become
unemployed.
(b) The labor force includes everyone over the age of 16, including those who are
unemployed.
(c) The labor-force participation rate is the ratio of employed persons to the total
labor force.
(d) The natural rate of unemployment is usually taken to be the sum of frictional and
structural unemployment.
16. As a result of greater access to the Internet, there is an increase in the speed with which
unemployed workers are matched with suitable jobs. This will
(a) increase the natural rate of unemployment.
(b) decrease the natural rate of unemployment.
(c) not affect the natural rate of unemployment but reduce structural unemployment.
(d) not affect the natural rate of unemployment but reduce frictional unemployment.
172 Study Guide to Principles of Macroeconomics
Use the following information to answer the next two questions. The Arbocali Bureau of Labor Statistics
provides you with the following information.
Employed 360,000
Unemployed 40,000
Not in the labor force 100,000
Population (aged 16 +) 500,000
19. We would expect to see each of the following during a recession EXCEPT
(a) decreased production.
(b) a worsening balance of payments.
(c) an increased incidence of psychological disorder and stress.
(d) decreased capacity utilization rates.
20. In an economy where inflation is usually unpredictable, the degree of risk associated with
investment
(a) increases.
(b) decreases.
(c) depends on the nominal interest rate.
(d) is not affected.
1. Can you think of any adaptations that have been made in our economy to alleviate the
redistributional effects of inflation?
2. (a) The market interest rate on a savings account is 5%. The inflation rate is 2%. Calculate
the real interest rate that savings account depositors will earn.
(b) Suppose that the nominal interest rate that banks charge on loans is subject to a price
ceiling of 7%. To be worthwhile, banks require a real interest rate of 4% or more. The
inflation rate is currently 5%. Describe what will happen in this market.
Chapter 7 [22]: Unemployment, Inflation, and Long-Run Growth 173
3. The following table provides information on inflation rates and unemployment rates for Arboc
over a seven-year period.
Arboc has a population of 1,000,000 over the age of 16. The labor-force participation rate is 90%.
(a) Calculate the number of workers unemployed in Year 1.
(b) Calculate the number of workers employed in Year 7.
Assume that the citizens of Arboc, when trying to determine the inflation rate for the next
12 months, base their calculations solely on the current inflation rate.
(c) During the period from Year 2 to Year 5, will borrowers be gaining or losing?
(d) In Year 5, the market interest rate was 12%. Calculate the real interest rate.
4. Gilligan is a small island economy containing 10 individuals. In each of the following cases,
determine if the individual is employed, unemployed, or not in the labor force. Explain your
classification.
(a) Krystal Krazy, Ph.D., 32, works 20 hours per week and is looking for a full-time job.
(b) Lisa Looney, 20, is a student who is not working.
(c) Maggie Madd, 84, works 10 hours a week doing cleaning services for her son, Norman
Neurotic. He pays her minimum wage.
(d) Norman Neurotic, 50, works full-time but hates his job and really wants a new job.
(e) Olivia Opprest, a housewife, does not work outside the home and isn’t looking for other
employment.
(f) Pete Paranoid, 40, used to work as a fisherman but believed that everyone hated him and
has given up in disgust.
(g) During the entire week containing the 12th of the month, Rosie the Riveter misses work
simply because she didn’t feel like going in to work.
(h) BiBi Bratt, a hugely successful film star, aged 12, has earned over $10,000,000 each year
for the past five years. Currently, BiBi is filming a new movie on location on Gilligan.
(i) Maxwell Edison, a full-time Ph.D. student, is involved in ground-breaking research into
fiber optics. His dissertation advisor has already claimed that Maxwell’s work will
revolutionize telecommunications.
(j) Jenny Wren is a volunteer 10 hours a week on a Rape Crisis telephone hotline. She feels
she makes an important contribution to society and would not accept a paid job if one
were offered to her.
(k) Calculate Gilligan’s labor-force participation rate.
(l) Calculate Gilligan’s unemployment rate.
174 Study Guide to Principles of Macroeconomics
5. Using the following figures, calculate the economic quantities for each year.
2005 2010
Total population (16+) 200 million 210 million
Labor force 130 million 144 million
Employed 120 million 125 million
2005 2010
(a) the labor-force participation rate
(b) the number unemployed
(c) the unemployment rate
(d) There is more likely to have been a recession in which year?
(e) The President, denying that unemployment is growing, claims that:
(i) “We’ve created more jobs” and
(ii) “Some of the unemployed in the statistics have stopped seeking work.”
How would you respond to these points?
7. Calculate the annual rates of inflation and complete the following table.
8. The following table shows the market value of a given basket of goods in a number of selected
years. The hourly nominal wage is also given.
(a) Use the preceding table to calculate the price index values, with Year 1 as the base year.
(b) Using the price index values, calculate the real hourly wage.
(c) Work out the rate of increase in the price index (what does it measure?) , and the
rate of increase in nominal wage/hour .
(d) Compare the two “rates of increase” and the behavior of real wage/hour. Make up a rule
of thumb linking these variables.
9. (a) Distinguish between frictional, structural, and cyclical unemployment. Give an example
of each. Suggest ways in which each of these types of unemployment might be reduced.
(b) Suppose you’ve just become unemployed because of company cutbacks. Are you
frictionally unemployed? Is it a good idea to accept the first job offer that comes along?
Can you see any disadvantages to doing so?
1. (a) Job openings exist for Phil. It’s merely a case of tracking down a position. Refer to p. 129
[441] for a discussion of the types of unemployment.
2. (a) If there are more discouraged workers, the numbers on the unemployment rolls will
decrease because workers who have ceased looking for a job (discouraged workers) no
longer meet the definition of being “unemployed.” Refer to p. 127 [439].
3. (d) Francine has stopped seeking work—she is not classified as unemployed. Refer to p. 127
[439] on discouraged workers.
4. (b) The skills of a group of workers have become obsolete, either through a change in
demand or, as in this case, through a technological change. Refer to p. 129 [441].
5. (b) The concept of full employment assumes that some (frictional and structural)
unemployment will be present. Refer to p. 129 [441].
6. (b) The new Arbocali computer chip industry represents a structural change. U.S. car and
steel workers have experienced similar unemployment.
7. (a) We don’t know why Oliver became unemployed in the first place, but we do know that
he can accept several suitable jobs—he has desirable job skills.
176 Study Guide to Principles of Macroeconomics
8. (c) The nominal (or market) interest rate is the real interest rate plus the anticipated inflation
rate. Refer to p. 133 [445].
9. (d) A borrower pays a lower rate of interest than s/he should have if inflation had been fully
anticipated. In fact, if inflation is very high, the cost of a loan may be zero or negative.
Refer to p. 133 [445].
10. (b) The inflation rate = (change in CPI/initial CPI) × 100 = (11/110) × 100% = 10%.
11. (c) If investment falls (as it will because unanticipated inflation hurts lenders), the economy
will grow less rapidly because fewer capital resources are being created.
12. (b) If the nominal wage rose by 7% and the inflation rate rose by 7%, the real wage would
not have changed. For the real wage to have risen by 3%, the nominal wage must have
risen by more than 7%—10%, in fact.
13. (a) Discouraged workers, seeing an improving economy, will begin to look for jobs—and
will be counted as unemployed whereas, previously, they were not.
14. (d) Refer to p. 127 [439]. Discouraged workers aren’t classified as unemployed. The labor
force includes those over the age of 16 who are, or who wish to be, employed. The labor-
force participation rate is the number in the labor force divided by the population.
15. (a) The real interest rate is equal to the nominal interest rate minus the anticipated inflation
rate.
16. (b) Structural and frictional unemployment should both be reduced, as will the natural rate
(the sum of structural and frictional unemployment).
17. (b) The labor force is the population minus those not in the labor force (500,000 – 100,000).
The unemployment rate equals the number unemployed divided by the labor force. In this
case, the unemployment rate equals 40,000/400,000, or 10%.
18. (d) The labor-force participation rate equals the number in the labor force (400,000) divided
by the population (500,000). Refer to p. 124 [436].
19. (b) As the economy slows down, fewer imports are bought.
20. (a) The more unpredictable a situation is, the riskier it is. Refer to p. 133 [445].
1. Adjustable-rate mortgages, indexation of the tax system, and indexation of pension benefits are a
few of the changes.
2. (a) The real interest rate (3%) equals the market interest rate (5%) minus the inflation rate
(2%).
(b) There will be an excess demand for loans. In fact, loans will dry up. The maximum
nominal interest rate is 7%; with inflation, the maximum real interest rate is 2%, which is
insufficient to induce banks to lend.
5. (a) The labor-force participation rate is labor force/population. In 2005, 130/200 = 65%; in
2010, 144/210 = 68.57%.
(b) Labor force equals the number employed plus the number unemployed. In 2005, the
number unemployed = 130 million – 120 million = 10 million; in 2010, the number
unemployed = 144 million – 125 million = 19 million.
(c) The unemployment rate = number unemployed/labor force. In 2005, number
unemployed/labor force = 10/130 = 7.69%; in 2010, number unemployed/labor force =
19/144 = 13.9%.
(d) 2010x, because the unemployment rate is higher in 2005.
(e) (i) It is possible for a growing economy to experience rising employment and rising
unemployment but, if the increase in the participation rate outstrips the increase
in job openings, the unemployment rate will rise.
(ii) If, indeed, some individuals have stopped seeking work, then they would have
dropped off the unemployment rolls. Admitting the presence of discouraged
workers, on top of the listed unemployed, actually makes the President’s
performance worse!
6. (a) risen; 5%; percentage change = (change in nominal GDP/initial GDP) × 100 =
(224.3/4,486) × 100 = 5%
178 Study Guide to Principles of Macroeconomics
(b) risen; 3.7%; percentage change = (change in price index/initial price index) × 100 =
(4/108) × 100 = 3.7%
(c) Frank as creditor, because anticipated inflation was greater than the actual inflation rate.
(d) Refer to the following table. Real GDP = (nominal GDP/price index) × 100
Example: Real GDP for Year 1 = (4,486/108) × 100 = 4,153.7.
(e) Refer to the preceding table. Real wage = (nominal wage/price index) × 100.
Example: Real wage for Year 1 = ($40,000/108) × 100 = $37,037.04
(f) Real wage in Year 1 was $37,037.04 ($40,000/1.08). To maintain the same value in Year
2, (x/1.12) = $37,037.04. Therefore, x = $37,037.04(1.12) = $41,481.48.
Value of
Market Price Rate of Nominal Rate of Real
Year Basket Index Increase Wage/Hour Increase Wage/Hour
Year 1 $887.00 78.32 — $4.55 — $5.81
Year 2 $993.44 87.72 12.0% $5.01 10.1% $5.71
Year 3 $1,132.52 100.00 14.0% $5.61 12.0% $5.61
Year 4 $1,245.78 110.00 10.0% $6.40 14.1% $5.82
Year 5 $1,320.52 116.60 6.0% $6.98 9.1% $5.98
(b) Refer to the preceding table. Example: real hourly wage for Year 2 = (nominal wage in
Year 2/price index) × 100 = ($5.01/0.8772) × 100 = $5.71.
(c) Inflation. Refer to the preceding table. Example: rate of increase in nominal wage for
Year 2 = [(nominal wage in Year 2 – nominal wage in Year 1)/nominal wage in Year 1] ×
100 = ($0.46/$4.55) × 100 = 10.1%.
(d) When inflation is rising faster than the rate of increase in the nominal wage, the real wage
will fall.
Chapter 7 [22]: Unemployment, Inflation, and Long-Run Growth 179
9. (a) Refer to the definitions on p. 129 [441]. A graduate in economics or business entering the
job market is frictionally unemployed. The graduate has desirable qualifications; it’s only
a matter of tracking down an acceptable job. Defense industry workers and military
personnel are becoming structurally unemployed as a result of the end of the Cold War.
“Restructuring” at IBM is another example. Cyclical unemployment occurred during the
recession of 1991 as consumer confidence plummeted and demand declined and, more
recently, during the mild recession of 2001.
(b) If the company cutbacks are due to a fall in demand that is being felt nationwide, you are
cyclically unemployed. If this one industry is affected, perhaps due to aggressive foreign
competition, you are structurally unemployed. Whether you should accept the first job
that is offered depends on the costs and benefits of staying unemployed. If you think it
unlikely that a sufficiently better job offer will materialize that will cover the costs of a
continued search, you should accept.
180 Study Guide to Principles of Macroeconomics