markets in action. tm 7-2 copyright © 1998 addison wesley longman, inc. learning objectives explain...
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![Page 1: Markets in Action. TM 7-2 Copyright © 1998 Addison Wesley Longman, Inc. Learning Objectives Explain how housing markets work and how price ceilings create](https://reader035.vdocuments.mx/reader035/viewer/2022062619/5518abb6550346a61f8b4cbc/html5/thumbnails/1.jpg)
Markets in Action Markets in Action
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TM 7-2Copyright © 1998 Addison Wesley Longman, Inc.
Learning Objectives
• Explain how housing markets work and how price ceilings create housing shortages and inefficiency
• Explain how labor markets work and how minimum wage laws create unemployment and inefficiency
• Explain the effects of the sales tax
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TM 7-3Copyright © 1998 Addison Wesley Longman, Inc.
Learning Objectives (cont.)
• Explain how markets for illegal goods work
• Explain why farm prices and revenues fluctuate
• Explain how speculation limits price fluctuations
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TM 7-4Copyright © 1998 Addison Wesley Longman, Inc.
Learning Objectives
• Explain how price ceilings create shortages and inefficiency
• Explain how price floors create surpluses and inefficiency
• Explain the effects of the sales tax
• Explain how markets for illegal goods work
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TM 7-5Copyright © 1998 Addison Wesley Longman, Inc.
Housing Marketsand Rent Ceilings
San Francisco Earthquake — 1906
How does the market deal with a dramatic reduction in the supply of housing?
The destruction of buildings decreases the supply of housing and shifts the short-run supply curve leftward.
With sufficient time for new apartments and houses to be constructed, supply increases.
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TM 7-6Copyright © 1998 Addison Wesley Longman, Inc.
LS
Quantity (thousands of units per month)
Ren
t (do
llars
per
uni
t per
mon
th)
0 44 72 100 150
12
16
20
24
D
SS
The San Francisco Housing Market in 1906
SSa
After EarthquakeLong run Adjustment
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TM 7-7Copyright © 1998 Addison Wesley Longman, Inc.
A Regulated Housing Market
Price ceilings are regulations that make it illegal to charge a price higher than a specified level.
Rent ceilings are price ceilings applied to housing markets.
How does a rent ceiling affect the housing market?
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TM 7-8Copyright © 1998 Addison Wesley Longman, Inc.
A Regulated Housing Market
Rent ceilings set above equilibrium have no effect.
Rent ceilings set below equilibrium prevents price from regulating the quantities supplied and demanded.
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TM 7-9Copyright © 1998 Addison Wesley Longman, Inc.
A Rent Ceiling
Quantity (thousands of units per month)
Ren
t (do
llars
per
uni
t per
mon
th)
0 44 72 100 150
12
16
20
24
D
SSa
Housingshortage
Maximum blackmarket rent
Rentceiling
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TM 7-10Copyright © 1998 Addison Wesley Longman, Inc.
A Regulated Housing Market
The ceiling results in two developments:
Search activity
Black markets
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TM 7-11Copyright © 1998 Addison Wesley Longman, Inc.
A Regulated Housing Market
Search activity is the time spent looking for someone to do business.
It increases when there is a shortage.
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TM 7-12Copyright © 1998 Addison Wesley Longman, Inc.
A Regulated Housing Market
Black markets are illegal markets in which the price exceeds the legally imposed price ceiling.
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TM 7-13Copyright © 1998 Addison Wesley Longman, Inc.
Quantity (thousands of units per month)
Ren
t (do
llars
per
uni
t per
mon
th)
0 44 72 100 150
12
16
20
24
D
Rentceiling
30S
Producersurplus
Deadweightloss
Consumersurplus
Inefficiency of Rent Ceilings
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TM 7-14Copyright © 1998 Addison Wesley Longman, Inc.
Learning Objectives
• Explain how price ceilings create shortages and inefficiency
• Explain how price floors create surpluses and inefficiency
• Explain the effects of the sales tax
• Explain how markets for illegal goods work
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TM 7-15Copyright © 1998 Addison Wesley Longman, Inc.
The Labor Market and the Minimum Wage
Wage rates adjust to make the quantity demanded of labor equal to the quantity supplied
Technology has reduced the demand for low-skilled labor
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TM 7-16Copyright © 1998 Addison Wesley Longman, Inc.
The Labor Market and the Minimum Wage
Short-run
There is a given number of people with a given skill.
Wages must be increased in order to increase the number of hours worked.
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TM 7-17Copyright © 1998 Addison Wesley Longman, Inc.
The Labor Market and the Minimum Wage
Long-run
People can acquire new skills and find new types of jobs:
• If wage rates are too high or low, people will enter or leave this labor market.
• If people can freely enter and leave the labor market, the long-run supply of labor is perfectly elastic.
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TM 7-18Copyright © 1998 Addison Wesley Longman, Inc.
The Labor Market and the Minimum Wage
Long-run
People can acquire new skills and find new types of jobs (cont.):
The longer the period of adjustment, the greater the elasticity of supply of labor.
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TM 7-19Copyright © 1998 Addison Wesley Longman, Inc.
A Market for Low-Skilled Labor
Quantity (millions of hours per year)
Wag
e R
ate
(dol
lars
per
hou
r)
20 21 22 23
3
4
5
6 SS
D
LS
DA
After inventionLong-run adjustment
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TM 7-20Copyright © 1998 Addison Wesley Longman, Inc.
The Minimum Wage
A minimum wage law is a regulation that makes the hiring of labor below a specified wage illegal.
If the minimum wage is set below equilibrium it will have no effect.
If the minimum wage is set above equilibrium, it prevents price from regulating quantity supplied and demanded.
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TM 7-21Copyright © 1998 Addison Wesley Longman, Inc.
Minimum Wage and Unemployment
Quantity (millions of hours per year)
Wag
e R
ate
(dol
lars
per
hou
r)
20 21 22 23
3
4
5
6 SS
DA
Minimumwage
a b
Unemployment
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TM 7-22Copyright © 1998 Addison Wesley Longman, Inc.
Minimum wageUSA: Fair Labor Standards Act of 1938
The Federal Minimum $7.25 per hour as of July 24, 2009
Some states like: Georgia ($5.15), Wyoming ($5.15), Arkansas ($6.25) lower wage and others have higher rate: DC ($8.25), California ($8), Alaska ($7.75), Arizona ($7.75), Illinois ($8.25), Massachusetts ($8)
• The State law excludes from coverage any employment that is subject to the Federal Fair Labor Standards Act when the Federal rate is greater than the State rate.
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TM 7-23Copyright © 1998 Addison Wesley Longman, Inc.
Minimum wage
• UK: there are different levels of NMW, depending on your age and whether you are an apprentice. The current rates are:
• £5.93 - the main rate for workers aged 21 and over ; £4.92 - the 18-20 rate; £3.64 - the 16-17 rate for workers above school leaving age but under 18; £2.50 - the apprentice rate, for apprentices under 19 or 19 or over and in the first year of their apprenticeship
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TM 7-24Copyright © 1998 Addison Wesley Longman, Inc.
Minimum wage
• In the 8 out of 27 member states currently have national minimum wages. Many countries, such as Sweden, Finland, Germany, Italy and Cyprus have no minimum wage laws but rely on employer groups and trade unions to set minimum earnings through collective bargaining.
• France € 8.86 (2010); Ireland € 7.65 (2011)
• Japan $7.75 - $9.90 (regional basis)
• Bulgaria 240 lv/monthly
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TM 7-25Copyright © 1998 Addison Wesley Longman, Inc.
Learning Objectives
• Explain how price ceilings create shortages and inefficiency
• Explain how price floors create surpluses and inefficiency
• Explain the effects of the sales tax (or VAT|
• Explain how markets for illegal goods work
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TM 7-26Copyright © 1998 Addison Wesley Longman, Inc.
Taxes
Who Pays the Sales Tax (VAT)?
Suppose a $10 sales tax (VAT) is imposed on DVD players
There are two prices
Including the tax — buyers respond to this.• What they pay.
Excluding the tax — sellers respond to this.• What they receive.
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TM 7-27Copyright © 1998 Addison Wesley Longman, Inc.
Taxrevenue
S + tax
The Sales Tax
Quantity (thousands of DVD players per week)
Pri
ce (
dolla
rs p
er p
laye
r)
3 4 5 6
95
100
105
110 S
DA
$10 tax
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TM 7-28Copyright © 1998 Addison Wesley Longman, Inc.
Tax Division andElasticity of Demand
Two Extremes
Perfectly inelastic demand--buyer paysExample: Insulin
Perfectly elastic demand--seller paysExample: Pink marker pens
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TM 7-29Copyright © 1998 Addison Wesley Longman, Inc.
Sales Tax (VAT) and the Elasticity of Demand
Quantity (thousands of doses per day)
Pri
ce (
dolla
rs p
er d
ose)
2.00
2.20
100
D
S
S + taxBuyer paysentire tax
Perfectly inelasticdemand
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TM 7-30Copyright © 1998 Addison Wesley Longman, Inc.
Sales Tax (VAT) and the Elasticity of Demand
Quantity (thousands of marker pens per week) 1 4
0.90
1.00
SS + tax
Sellerpaysentiretax
Pri
ce (
cent
s pe
r pe
n)
Perfectly elasticdemand
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TM 7-31Copyright © 1998 Addison Wesley Longman, Inc.
Tax Division andElasticity of Demand
The division of the tax depends upon elasticity.
The more inelastic the demand, the more the buyer pays.
The more elastic the demand, the more the seller pays.
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TM 7-32Copyright © 1998 Addison Wesley Longman, Inc.
Tax Division andElasticity of Supply
Two Extremes:
Perfectly inelastic supply -- seller pays.Example: water from a mineral spring.
Perfectly elastic supply -- buyer pays.Example: sand used to make silicon used by computer chip makers.
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TM 7-33Copyright © 1998 Addison Wesley Longman, Inc.
Sales Tax (VAT) and theElasticity of Supply
Quantity (thousands of bottles per week)
Pri
ce (
dolla
rs p
er b
ottle
)
45
50
100
S
D
Seller paysentire tax
Perfectly inelasticsupply
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TM 7-34Copyright © 1998 Addison Wesley Longman, Inc.
Sales Tax (VAT) and theElasticity of Supply
Quantity (thousands of pounds per week)
Pri
ce (
cent
s pe
r po
und)
10
11
3 5
S
D
S + taxbuyer paysentire tax
Perfectly ElasticSupply
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TM 7-35Copyright © 1998 Addison Wesley Longman, Inc.
Tax Division andElasticity of Supply
The division of the tax depends upon elasticity.
The more inelastic the supply, the more the seller pays.
The more elastic the supply, the more the buyer pays.
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TM 7-36Copyright © 1998 Addison Wesley Longman, Inc.
Sales Taxes (VAT) in Practice
Items with low elasticity of demand (alcohol, tobacco, & gasoline) are good sources of tax revenue for the government.
Why?
Poor source: 1991 Luxury Tax
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TM 7-37Copyright © 1998 Addison Wesley Longman, Inc.
Taxes and Efficiency
Inefficiency
Due to the difference in price paid by the buyer and received by the seller the marginal benefit does not equal the marginal cost.
The more inelastic demand or supply, the smaller the decrease in quantity and deadweight loss.
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TM 7-38Copyright © 1998 Addison Wesley Longman, Inc.
Taxes and Efficiency
Quantity (thousands of DVD players per week)
Pri
ce (
dolla
rs p
er p
laye
r)
0 1 2 3 4 5 6 7 8 9 10
75
100
130
DD
S
105
95
Tax Revenue
Consumersurplus
Producersurplus
S + tax
Deadweightloss
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TM 7-39Copyright © 1998 Addison Wesley Longman, Inc.
Learning Objectives
• Explain how price ceilings create shortages and inefficiency
• Explain how price floors create surpluses and inefficiency
• Explain the effects of the sales tax
• Explain how markets for illegal goods work
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TM 7-40Copyright © 1998 Addison Wesley Longman, Inc.
Markets for Illegal Goods
When a good is illegal, the cost of trading in the good increases.
Penalties and policing increase the cost.
Decreasing supply and/or demand
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TM 7-41Copyright © 1998 Addison Wesley Longman, Inc.
D - CBL
S + CBL
A Market for an Illegal Good
Quantity
Pri
ce
Qc
Pc
D
c
Sa
b
Cost per unitof breakingthe law...
…to buyer
…to seller
d
Q p
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TM 7-42Copyright © 1998 Addison Wesley Longman, Inc.
Markets for Illegal Goods
Enforcement
Price effects depend upon who receives the most severe penalty -- the buyer or seller.
Today, penalties on sellers are larger.
This causes the equilibrium quantity to decrease and price increases compared to an unregulated market.
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TM 7-43Copyright © 1998 Addison Wesley Longman, Inc.
Learning Objectives (cont.)
• Explain why farm prices and revenues fluctuate
• Explain how speculation limits price fluctuations
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TM 7-44Copyright © 1998 Addison Wesley Longman, Inc.
Stabilizing Farm Revenues
Farm output fluctuates considerably due to fluctuations in the weather.
How do changes in farm output affect farm prices and farm revenues?
How can farm revenues be stabilized?
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TM 7-45Copyright © 1998 Addison Wesley Longman, Inc.
$20billion
$30 billion
$60 billion
0 5 10 15 20 25
2
4
6
8
Quantity (billions of bushels (35.24L) per year)
Pri
ce (
dolla
r pe
r bu
shel
)MS0
D
Poor harvest
MS1
Harvest, Farm Prices,and Farm Revenues
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TM 7-46Copyright © 1998 Addison Wesley Longman, Inc.
Stabilizing Farm Revenues
Farm Revenues during a bad harvest
Total farm revenue actually increases due to inelastic demand.
Some farmers, whose entire crop is destroyed, lose.
Others, whose crop is unaffected, earn enormous profits.
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TM 7-47Copyright © 1998 Addison Wesley Longman, Inc.
$40 billion
$40 billion
$10billion
0 5 10 15 20 25
2
4
6
8
Quantity (billions of bushels per year)
Pri
ce (
dolla
r pe
r bu
shel
)
MS0
D
MS2
Bumper Harvest(record high)
Harvest, Farm Prices,and Farm Revenues
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TM 7-48Copyright © 1998 Addison Wesley Longman, Inc.
Stabilizing Farm Revenues
Farm Revenues during a bumper harvest
Total farm revenue actually decreases due to inelastic demand.
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TM 7-49Copyright © 1998 Addison Wesley Longman, Inc.
Learning Objectives (cont.)
• Explain why farm prices and revenues fluctuate
• Explain how speculation limits price fluctuations
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TM 7-50Copyright © 1998 Addison Wesley Longman, Inc.
Stabilizing Farm Revenues
Two institutions designed to stabilize farm revenue
Speculative markets in inventories
Farm price stabilization policy
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TM 7-51Copyright © 1998 Addison Wesley Longman, Inc.
0 5 10 15 20 25
2
4
6
8
Quantity (billions of bushels)
S
D
Pri
ce (
dolla
r pe
r bu
shel
)Q1
Inventory
Inventory Speculation
How Inventories Limit Price ChangesQ2
5 billion toinventory
Productiondecreases
Productionincreases
5 billion frominventory
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TM 7-52Copyright © 1998 Addison Wesley Longman, Inc.
Farm Revenue
Speculative markets in inventories do not stabilize farm revenue
When price is stabilized, revenue fluctuates as production fluctuates.
Bumper crops bring larger revenues than poor harvest do.
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TM 7-53Copyright © 1998 Addison Wesley Longman, Inc.
Farm Revenue
Farm Price Stabilization Policy
• Set production limits
• Set price floors
• Hold inventories
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TM 7-54Copyright © 1998 Addison Wesley Longman, Inc.
Farm RevenueFarm Price Stabilization Policy
Production limits
Quotas restrict the quantity produced. Can result in higher farm prices.
Price floors Set above equilibrium create surpluses.
Hold inventoriesThe government must hold inventory to maintain the equilibrium price.