A manager’s guide to Government in
the marketplace
Rules and regulations passed and enforced by
government enter into every decision firms and
consumers make.
As manager, it is important to understand
1. regulations passed by government
2. Why such regulations have been passed
3. How they affect optimal managerial decisions
Reasons for government
involvement in market economy
1. Provide legal, monetary and social framework
for markets to operate
2. Insure that markets operate in a competitive
manner
3. Redistribute income and wealth in a more
desirable (equitable) fashion
4. Guarantee a more efficient allocation of
resources in the face of externalities
5. Stabilize the overall level of economic activity
MARKET FAILURE
Market Failure
 Market economy may produce too much or too
little of certain products
 Failure to make efficient use of society’s limited
resources
4 reasons why free markets may fail to provide
socially efficient outcomes (need for government
intervention)
1. Market power
2. Externalities
3. Public goods
4. Incomplete information
Market Failures
Market Power:- Firms with market power tend to
restrict output to force prices up.
Price > MC  there may be a net gain to society if
additional output is produced
Government may intervene in the market to
regulate actions of firms in an attempt to increase
social welfare
Monopolies = deadweight loss
Government uses antitrust policy to enact and
enforce laws that restrict the formation of
monopolies
Outlaws price-fixing agreements and other
collusive practices
Competition Act 1889 (Canada) – outlaws price
fixing, bid-rigging conspiracies, mergers that
inhibit competition etc.
Bureau of Competition- enforcer
Sherman Antitrust Act 1890 (USA)
Exceptions may be made if mergers will result in
increase in technology or efficiency
Externalities
 When production/consumption processes create
benefits or costs for people who are not part of
the production or consumption process of that
good.
 Failure of markets to take into account all the
costs and benefits associated with production or
consumption of a good or service
 Business consider only private or internal costs – cost
borne by the firm– in production decisions
 Consumers tend to consider only private or internal
benefits in consumption decisions
Both groups ignore external costs borne by others or
benefits that may be received by others.
Ignoring external costs or benefits – Externalities– results in
an inefficient use of our scarce resources
Produce too much some items because full costs are not
considered or produce too little because full benefits are
not considered
External costs
 Having a quiet dinner at your favorite restaurant
only to have a shrieking baby at the next table
 Watching a movie at the theatre with a kid using
the back of your seat as a bongo drum.
 Negative= costs, positive = benefits
Negative: pollution, smoking etc.
Positive: anchor store in a mall, day care,
education etc
Scenario: Textile firm emits pollutants, a byproduct of the production process, into a river.
 cost to society of dirtier water marginal cost
to society increases.
If firms are allowed to dump pollutants in the water
for free then marginal price paid by society for
textiles is greater than price paid to firms.
 Social costs is the full cost to society of
producing the textiles– private costs + external
costs.
Correcting for external costs:- how do we force
business and individuals to consider all the costs
of their actions?
Forcing them to internalize the costs.
Cost of pollution is not internalized by those who
buy and sell textiles.
Basic reason for this market failure is the lack of
well defined property rights
 Possibilities:
1. Government can assign property rights to unowned resources like lakes and rivers so
individuals may charge for their use.---Basic
reason for this market failure is the lack of well
defined property rights
2. Legislations to limit (forbid) activities that create
external costs
Government may force firms to internalize the cost
by enacting policies that shift the cost of
production to where it actually equals the social
cost of production.
e.g. Clean Air Act : Get a permit to pollute. Pay a
fee for each unit of pollutants emitted. 
internalize the cost of emission
Permits can be sold by one firm to another within
and across industries
This provides an incentive for firms to develop and
innovate new technologies that produce less
pollution
 Coase Theorem: government intervention to
eliminate the effect of externalities is not
necessary
If property rights are well defined (by the courts)
 bargaining between the parties involved would
result in an optimal solution.
This works if transactions costs – costs of striking
the bargain-- are relatively low and in which the
number of people involved is relatively small
Market Failure and the provision of
public goods
 Markets may fail because some goods are not
simply well suited to be provided by private firms.
 These products must be provided by government
or they won’t be provided at all.
3 categories of goods & services
1. Pure private goods – convey their benefits only
to the consumer. eg. Hamburger for lunch,
jacket you are wearing etc.
2. Private goods that yield external benefits: education, flu shots, driver’s training etc.
3. Public goods – benefits are enjoyed equally by
paying and non-paying members of society.
Problem, everyone enjoys so who wants to pay
for the good???
PUBLIC GOODS
Goods that benefit persons other than those who
buy the goods
Public goods are non-rival and non-exclusionary
Non-rival  If one person’s increase in
consumption does not reduce the quantity
available to others
e.g. fireworks, radio signals, lighthouse etc.
Rival goods  when you consume the good
another person is unable to consume it as well
Non-exclusionary once the good is made
available, everyone gets it; no one can be
excluded from enjoying the good.
Most goods are exclusionary: e.g. chocolate bar
FREE RIDER PROBLEM
Since everyone gets to enjoy a public good once it
is available, individuals have little incentive to
purchase the good.
Rather, they prefer to let other people pay for it and
then they can ‘free-ride” on the efforts of others
If everyone thinks this way, the good will not be
available
 Markets will not provide public goods efficiently.
 Imagine, a private firm providing street lights and
charging for it? Nobody will pay for it. If one
person pays for it, everyone else will enjoy it
(free ride).
 National defense, snow warning systems, etc.
cannot be offered so as to restrict their benefits
to payers alone
 Government solves the public-goods problem by
forcing everyone to pay taxes and then uses to
fund public projects
 Not all publicly provided goods are public goods.
eg. Education, public swimming pools
 Government may not provide the socially efficient
quantity of a public good. It may over provide
 Firms may provide public goods to increase their
profits. e.g. clean local parks, give money to PBS
creates goodwill and may create brand loyalty or
increase the demand for the firm’s product
Market Failure
Demand for Public a Good In Action
Price
Total demand for streetlights
Individual consumer surplus = $72
Individual demand for streetlights
0
Quantity of
streetlights
14-23
Market Failure
Demand for Public a Good In Action
Price
Price
Total demand
by B and C
A’s consumer
surplus from = $85.50
free-riding
30
B’s and C’s
individual demand
0
Quantity
of streetlights
A’s demand
for streetlights
30 Quantity
of streetlights
14-24
INCOMPLETE INFORMATION
 When participants in a market have incomplete
information about things such as prices, quality,
risks, etc. it may result in inefficiency in input
usage and in firm’s output
 Classic example: The call for restaurants to
indicate the caloric input of each meal on their
menu.
 If individuals are not told that cigarettes are
harzardous, some people would smoke out of
ignorance
 Government requires labels/warnings on
products
 Regulates work environment (hard hats, dangers
of chemicals etc.)
 Laws against insider trading
 Certification
 Truth in advertising
Rent Seeking
Government policies generally benefit some parties
at the expense of others.
Some people (lobbyists???) spend considerable
sums in attempts to influence government
policies : rent seeking
Monopolist can spend money on campaign
contributions, wining and dining politicians or
even bribes to avoid regulation that will eat into
its profits.
Rent Seeking
Resource Allocation and Rent
Seeking
 Government policies can improve the allocation of
resources to alleviate market failures.
 These policies, however, generally benefit some
parties at the expense of others.
 Implications: lobbyists spend considerable sums
in attempt to influence government policy; a
process known as rent seeking.
14-28
Rent Seeking
Incentives to Engage in
Rent-Seeking Activities In Action
Price
C
A
B
MR
MC = AC
Demand
Quantity
14-29
Government Policy and International
Markets
Quotas
 A quota is a government restriction that limits the
quantity of imported goods that can legally enter
the country.
 Implications:
 Reduces competition in domestic market
 Higher domestic prices
 Higher profits for domestic firms
 Lower consumer surplus for domestic consumers
 Conclusion: Domestic producers benefit at the
expense of domestic consumers and foreign
producers
14-30
Government Policy and International
Markets
Quota In Action
Price
E
M
A
G
K
B
Demand
Quantity in the
domestic market
14-31
Government Policy and International
Markets
Tariffs
 A tariff is designed to limit foreign competition in
the domestic market to benefit domestic
producers, which accrue at the expense of
domestic consumers and foreign producers.
 Lump-sum tariff: fixed fee that foreign firms must
pay the domestic government to be able to sell in
the domestic market.
 Excise (per-unit) tariff: the fee an importing firm
must pay to the domestic government on each
unit it brings into the country.
14-32
Government Policy and International
Markets
Lump-Sum Tariff on a Foreign Firm In
Action
Price
Average cost
before
lump-sum tariff
Average cost
After lump-sum tariff
AC2
MC
AC1
Quantity of
individual
foreign firm’s
output
14-33
Government Policy and International
Markets
Impact of a Lump-Sum Tariff on
Market Supply In Action
Price
A
Market supply curve
after lump-sum tariff
Market supply curve
before lump-sum tariff
Quantity in the
domestic market
14-34
Government Policy and International
Markets
Quota In Action
Price
Supply after
excise tax
E
C
H
B
A
Supply before
excise tax
Demand
Quantity in the
domestic market
14-35
In this section we’d look for the answers
to these questions:
 How do wages compensate for differences in job
characteristics?
 Why do people with more education earn higher
wages?
 Why are wages sometimes above their equilibrium
values?
 Why is it difficult to measure discrimination?
 When might the market solve the problem of
discrimination? When might it not?
36
U.S. Median Weekly Earnings, Selected Occupations, 2006
Both
sexes
Men
$1,875
$1,907
$1,422
Aircraft pilots
1,407
1,419
n.e.d.
Educ. administrators
1,125
1,275
1017
Fire fighters
912
918
n.e.d.
Registered nurses
978
1,074
971
10.6%
Social workers
732
749
728
2.9%
Secretaries
583
559
584
– 4.3%
Telemarketers
395
n.e.d.
n.e.d
Waiters/waitresses
363
401
348
15.2%
Maids/housekeeping
355
404
348
16.1%
Occupation
Chief executives
Gender
Women
gap
n.e.d. = not enough data for BLS disclosure requirements
34.1%
25.4%
37
Introduction
 In competitive markets, the wages workers earn
equal the value of their marginal products.
 There are many factors that affect productivity
and wages…
EARNINGS AND DISCRIMINATION
38
Compensating Differentials
 Compensating differential: a difference in wages
that arises to offset the nonmonetary characteristics
of different jobs
 These characteristics include unpleasantness,
difficulty, safety. Examples:
 Coal miners and fire fighters are paid more
than other workers with similar education
to compensate them for the extra risks.
 Night shift workers paid more than day shift
to compensate for the lifestyle disruption of
working at night.
EARNINGS AND DISCRIMINATION
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Ability, Effort, and Chance
 Greater ability or effort often command higher
pay. These traits increase workers’ marginal
products, make them more valuable to the firm.
 Wages also affected by chance
 E.g., new discoveries no one could have
predicted make some occupations obsolete,
increase demand in others
EARNINGS AND DISCRIMINATION
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Ability, Effort, and Chance
 Ability, effort, and chance are difficult to measure,
so it is hard to quantify their effects on wages.
 They are probably important, though,
since easily measurable characteristics
(education, age, etc.) account for less than half
of the variation in wages in our economy.
EARNINGS AND DISCRIMINATION
41
Case Study: The Benefits of Beauty
Research by Hamermesh and Biddle:
 People deemed more attractive than average
earn 5% more than people of average looks.
 Average-looking people earn 5-10% more
than below-average looking people.
EARNINGS AND DISCRIMINATION
42
Case Study: The Benefits of Beauty
Hypotheses:
1. Good looks matter for productivity
 In jobs where appearance is important,
attractive workers are more valuable to the
firm, command higher pay.
2. Good looks indirectly related to ability
 People who make an effort to project
attractive appearance may be smarter or
more competent in other ways.
3. Discrimination
EARNINGS AND DISCRIMINATION
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The Superstar Phenomenon
 Superstars like Will Smith, Bono earn many
times more than average in their fields.
 The best plumbers or carpenters do not.
 Superstars arise in markets that have two
characteristics:
 Every customer in the market wants to enjoy the
good supplied by the best producer.
 The good is produced with a technology that
allows the best producer to supply every
customer at a low cost.
EARNINGS AND DISCRIMINATION
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Human Capital
 Human capital: the accumulation of
investments in people, such as education and
on-the-job training
 Human capital affects productivity, and thus labor
demand and wages.
EARNINGS AND DISCRIMINATION
45
Weekly Earnings of Full-Time Employed
Persons Age 25+ by Education, 2007:Q4
Educational
attainment
Less than H.S.
Median weekly
earnings
$ 424
H.S. diploma
610
Some college or
Associate degree
697
Bachelor’s degree
994
Advanced degree
1,259
46
The Increasing Value of Skills
The earnings gap between
college-educated and
non-college-educated workers
has widened in recent decades.
Percentage difference in annual
earnings for college graduates
vs. high school diploma
1980
2005
Men
44%
87%
Women
35%
72%
EARNINGS AND DISCRIMINATION
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The Increasing Value of Skills
Two hypotheses:
1. International trade
Rising exports of goods made with skilled labor,
rising imports of goods made with unskilled labor.
2. Skill-biased technological change
New technologies have increased demand for
skilled workers, reduced demand for unskilled
workers.
Difficult to determine which hypothesis
better explains the widening earnings gap;
probably both are important.
EARNINGS AND DISCRIMINATION
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The Signaling Theory of Education
An alternative view of education:
 Firms use education level to sort between
high-ability and low-ability workers.
 The difficulty of earning a college degree
demonstrates to prospective employers that
college graduates are highly capable.
 Yet, the education itself has no impact on
productivity or skills.
 Policy implication: Increasing general
educational attainment would not affect wages.
EARNINGS AND DISCRIMINATION
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Reasons for Above-Equilibrium Wages
1. Minimum wage laws
The minimum wage may exceed the eq’m wage
of the least-skilled and experienced workers
2. Unions
Union: a worker association that bargains with
employers over wages and working conditions
Unions use their market power to obtain higher
wages; most union workers earn 10-20% more
than similar nonunion workers.
EARNINGS AND DISCRIMINATION
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Reasons for Above-Equilibrium Wages
3. Efficiency wages
Efficiency wages: above-equilibrium wages paid
by firms to increase worker productivity
Firms may pay higher wages to reduce turnover,
increase worker effort, or attract higher-quality job
applicants.
EARNINGS AND DISCRIMINATION
51
ACTIVE LEARNING
2
Explaining wage differentials
In each case, identify which worker would earn more
and explain why.
A. The best physical therapist on the planet or
the best writer on the planet
B. A trucker that hauls produce or a trucker that
hauls hazardous waste from nuclear power plants
C. A graduate of an Ivy League college or an equally
intelligent & capable graduate of a state university
D. Someone who graduated from a state university
with a 3.7 GPA, or someone who graduated from
the same university with a 2.4 GPA
52
The Economics of Discrimination
 Discrimination: the offering of different
opportunities to similar individuals who differ only
by race, ethnicity, gender, or other personal
characteristics
EARNINGS AND DISCRIMINATION
53
Measuring Labor-Market Discrimination
 Median earnings of full-time U.S. workers, 2007:
 White males earn 21% more than white females.
 White males earn 24% more than black males.
 Taken at face value, these differences look like
evidence that employers discriminate.
 But there are many possible explanations for
wage differences besides discrimination; the data
above do not control for differences in other
factors that affect wages.
EARNINGS AND DISCRIMINATION
54
Measuring Labor-Market Discrimination
Differences in human capital among groups:
 White males 75% more likely to have college
degree than black males
 White males 11% more likely to have graduate
degree than white females
 Women have less on-the-job experience than men
 Public schools in many predominantly black areas
are of lower quality (e.g., funding, class sizes)
There may well be discrimination in access to
education, but this problem occurs long before
workers enter the labor force.
EARNINGS AND DISCRIMINATION
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Measuring Labor-Market Discrimination
Recent study by Bertrand and Mullainathan finds
evidence of labor-market discrimination:
 5000 fake résumés sent in response to
“help wanted” ads.
 Half had names more common among blacks,
like Lakisha Washington or Jamal Jones.
The other half had names common among whites,
like Emily Walsh or Greg Baker.
Otherwise, the résumés were the same.
 The white names received 50% more calls from
interested employers than the black names.
EARNINGS AND DISCRIMINATION
56
Discrimination by Employers
 Competitive markets provide a natural remedy
for employer discrimination:
The profit motive…
The non-discriminating firms can hire females for a lower
wage, giving them a cost advantage and economic profits,
which attract entry of other non-discriminating firms.
Suppose some firms discriminate against female workers.
They will hire fewer females, more males.
Result: A wage differential.
EARNINGS AND DISCRIMINATION
57
Discrimination by Employers
The discriminating firms will begin to lose money and be
driven out of the market. Result: Demand for female
workers increases,
demand for male workers falls until wages are equalized
WF
Female workers
WM
SF
Male workers
SM
WM
WF
WF
WM
DM
DF
DF
DM
LF
EARNINGS AND DISCRIMINATION
LM
58
Discrimination by Consumers
 Discrimination by consumers may result in
discriminatory wage differentials.
 Suppose firms care only about maximizing
profits, but customers prefer being served by
whites.
 Then firms have an incentive to hire white
workers, even if non-whites are willing to work
for lower wages.
EARNINGS AND DISCRIMINATION
59
Discrimination by Governments
 Some government policies mandate
discriminatory practices.
 apartheid in South Africa before 1994
 early 20th century U.S. laws requiring
segregation in buses and streetcars
 Such policies prevent the market from correcting
discriminatory wage differentials.
EARNINGS AND DISCRIMINATION
60
CONCLUSION
 In competitive markets, workers are paid a wage
that equals the value of their marginal products.
 Many factors affect the value of marginal products
and equilibrium wages.
 The profit motive can correct discrimination by
employers, but not discrimination by customers or
discriminatory policies of governments.
 Even without discrimination, the distribution of
income may not be equitable or desirable –
a topic we explore in the following chapter.
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