PowerPoint to accompany Chapter 10 The Markets for Labour and other Factors of Production.
Chapter 18 The Markets for the Factors of Production.
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Transcript of Chapter 18 The Markets for the Factors of Production.
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Chapter 18
The Markets for the Factors of Production
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Objectives
1. Understand the firm’s demand for labor.
2. Learn why the equilibrium wage rateis equal to the value of labor’s marginal product.
3. Understand how land and capital are valued in the factor markets.
4. Know why a change in the supply of one factor changes the earnings of all other inputs
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The Market for the Factors of Production
Factors of Production are the inputs used to produce goods and services. (Chapter 2)
– What are the major factors of production?
– What determines how much each factor of production is paid?
– What determines how much of each factor of production will be purchased?
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The Market for the Factors of Production
The demand for a factor of production is a Derived Demand.
A firms demand for a factor of production is derived from its decision to supply a good in another market.
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A Firm’s Demand For Labor Labor is the most important factor of
production.
Labor markets, like other markets in the economy, are governed by the forces of supply and demand. (Fig 18-1)
Most labor services, rather than being final goods ready to be enjoyed by consumers, are inputs into the production of other goods.
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The Demand for Labor
Labor markets, like other markets in the economy, are governed by the forces of supply and demand.
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The Versatility of Supply and Demand
Price ofApples
Quantity of Apples
P
Q
Demand
Supply
0Quantity of
ApplesPickers
W
L
Demand
Supply
0
Wageof ApplePickers
The Marketfor Apples
The Marketfor ApplePickers
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The Demand For Labor
Most labor services, rather than being final goods ready to be enjoyed by consumers, are inputs into the production of other goods.
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The Production Function and The Marginal Product of Labor
The production function illustrates the relationship between the quantity of inputs used and the quantity of output of a good.
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A Firm’s Demand For Labor:The Competitive Profit-Maximizing Firm
A Competitive Firm (Chapter 14):
–is a price taker, for both the product it sells (e.g. apples) and the input it buys (e.g. apple pickers)
–has the goal to maximize profits
The firm’s supply of apples and its demand for workers are derived from its primary goal of maximizing profits.
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LaborLabor(Numbers of(Numbers of
Workers)Workers)
LaborLabor(Numbers of(Numbers of
Workers)Workers)
OutputOutput(Bushels(Bushelsper week)per week)
OutputOutput(Bushels(Bushelsper week)per week)
MarginalMarginalProductProductof Laborof Labor
MarginalMarginalProductProductof Laborof Labor
Value of theValue of theMarginal ProductMarginal Product
of Laborof Labor
Value of theValue of theMarginal ProductMarginal Product
of Laborof Labor
WageWageWageWage Marginal Marginal ProfitProfit
Marginal Marginal ProfitProfit
(L)(L)(L)(L) (Q)(Q)(Q)(Q) (MPL = Q/ L)(MPL = Q/ L)(MPL = Q/ L)(MPL = Q/ L) (VMPL = P x MPL)(VMPL = P x MPL)(VMPL = P x MPL)(VMPL = P x MPL) (W)(W)(W)(W) ( Profit = VMPL - W)( Profit = VMPL - W)( Profit = VMPL - W)( Profit = VMPL - W)
0
1
2
3
4
5
0
100
180
240
280
300
100
80
60
40
20
$1,000
800
600
400
200
$500
500
500
500
500
$500
300
100
-100
-300
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The Production Function and The Marginal Product of Labor
Illustrates and describes the relationship between the quantity of inputs used and the quantity of output from production.
Quantityof Apples
Quantity ofApple Pickers
0 1 2 3 4 5
100
180
240
280
300
Productionfunction
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The Marginal Product of Labor
Marginal Product of Labor: The increase is the amount of output from an additional unit of labor.
MPL = (Q2 - Q1) ÷ (L2 - L1) Example from Table 18-1:
MPL = (180 - 100) ÷ (2 - 1) = 80– The second unit of labor adds 80
additional bushels of apples picked
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The Diminishing Marginal Product of Labor
As the number of workers increases, the marginal product of labor declines.
As more and more workers are hired, each additional worker contributes less to the production.
– The production function (Fig 18-2) gets flatter as the number of workers rises.
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The Marginal Product of Labor: How many workers to hire?
To maximize profits, the firm considers how much profit each worker would bring in. . .
Value of the Marginal Product
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Value of the Marginal Product...
… is the marginal product of the input (MPL) multiplied by the market price of the output:
VMPL = (MPL) x (PQ )– VMPL is measured in dollars and
diminishes as the number of workers rises because the market price of the good (PQ) is constant.
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Value of the Marginal Product
Value of Marginal Product Curve
VMPL
Quantity of Labor
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“How Many Workers Do I Hire?”
Value of Marginal Product Curve
VMPL
Quantity of Labor
?
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How many workers to hire?
To maximize profit, the firm hires workers up to the point where the VMPL is equal to the cost of the labor, i.e. market wage (Fig 18-3)
VMPL = WAGE The value-of-marginal-product curve is
the labor demand curve for a competitive, profit-maximizing firm
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“How Many Workers Do I Hire?”VMPL & WAGE
Quantity of Labor
MarketWage
VMPL Curve
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“How Many Workers Do I Hire?”VMPL & WAGE
Quantity of Labor
MarketWage
VMPL Curve
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“How Many Workers Do I Hire?”VMPL & WAGE
Quantity of Labor
MarketWage
Profit-MaxQuantity
VMPL Curve
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Important!!
Remember: P = MC
P x MPL = W
P = W MPL
NOTE: W MPL = MC
Therefore,
P = MC
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Quick Quiz! Define “marginal product
of labor” and the “value of the marginal product of labor.”
Describe how a competitive, profit-maximizing firms decides how many workers to hire.
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Labor-Market Equilibrium
Labor supply and labor demand together determine the equilibrium wage, and shifts in the supply or demand curve for labor cause the equilibrium wage to change.
Profit maximization by competitive firms demanding labor, ensures that the equilibrium wage always equals the value of the marginal product.
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Labor-Market Equilibrium: Shifts in the Supply and Demand of Labor
The wage adjusts to balance the supply and demand for labor (Fig 18-4)
Shift in Supply of Labor: may be caused by increased number of available labor (Fig 18-5)
Shift in Demand for Labor: may be caused by an increased demand for the final product produced by labor.
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“How Many Workers Do I Hire?”VMPL & WAGE
Quantity of Labor
MarketWage
Profit-MaxQuantity
VMPL Curve
S0
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What Causes the Labor Demand Curve to Shift?
Output Price
Technological Change
Supply of Other factors
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The Labor Supply Curve The labor supply curve reflects how
workers’ decisions about the labor-leisure tradeoff respond to changes in opportunity cost.
An upward-sloping labor supply curve means that an increase in the wages induces workers to increase the quantity of labor they supply.
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The Labor Supply Curve
Supply
Wage (price of
labor)
Quantity of Labor
0
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What Causes the Labor Supply Curve to Shift?
Changes in Tastes
Changes in Alternative Opportunities
Immigration
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Equilibrium in the Labor Market
The wage adjusts to balance the supply and demand for labor.
The wage equals the value of the marginal product of labor.
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Shifts in the Supply and Demand of Labor
Shifts in Supply of Labor:
Result in a surplus of labor which
puts downward pressure on wages which
makes it profitable for firms to hire more workers, which
results in diminishing marginal product, which
lowers the value of the marginal product.
Gives a new equilibrium...
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A Shift in Labor SupplyFigure 18-5Wage
(price oflabor)
Quantityof labor
W1
W2
L1 L20
Supply, S1S2
1. An increase in supply...
2. …reduces the wage...
3. …and raises employment.
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A Shift in Labor DemandFigure 18-6Wage
(price oflabor)
Quantityof labor
W2
W1
L1 L20
Supply
D2
1. An increase in labor demand...
2. …increases the wage...
3. …and raises employment.
Demand, D1
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What causes productivity and wages to vary so much over time? (Table 18-3)
Physical Capital: when workers work with a larger quantity of equipment and structures, they produce more.
Human Capital: when workers are more educated, they produce more.
Technological Knowledge: When workers have access to more sophisticated technologies, they produce more.
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“How Many Workers Do I Hire?”VMPL & WAGE
Quantity of Labor
MarketWage
VMPL Curve
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Quick Quiz!
How does the immigration of workers affect labor supply, labor demand, the marginal product of labor, and the equilibrium wage?
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Other Factors of Production: Land and Capital
Capital: refers to the stock of equipment and structures used for production.
– The economy’s capital represents the accumulation of goods produced in the past that are being used in the present to produce new goods and services.
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Two Prices for Land & Capital
Purchase Price:
–the price a person pays to own that factor of production indefinitely.
Rental Price:
–the price a person pays to use that factor for a limited period of time.
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Determining the Rental Price and Quantity of Land and Capital
Rental Price:
– The rental price of land and the rental price of capital are determined by supply and demand.
Quantity Purchased:
– The firm increases the quantity hired until the value of the factor’s marginal product equals the factor price.
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The Markets for Land and Capital
RentalPrice of Land
Quantity of Land
P
Demand
Q0
Supply
the Market for Land
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The Markets for Land and Capital
RentalPrice of Capital
Quantity of Capital
P
Demand
Q0
Supply
the Market for Capital
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Determining the Rental Price and Quantity of Land and Capital
Labor, land, and capital each earn the
value of their marginal contribution to the
production process.
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Determining the Purchase Price and Quantity of Land and Capital
Equilibrium Purchase Price:
–depends on both the current value of the marginal product and the value of the marginal product expected to prevail in the future.
Land and Capital are paid the value of their marginal product.
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Linkages Among the Factors of Production
The factors of production not only depend on the demand and supply of
the products they are used to produce, but they are also dependent upon each
other.
Economic Interdependence
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Economic Interdependence between Factors of Production
An event that changes the supply of any factor of production can alter the earnings of all the factors.
The change in earnings of any factor can be found by analyzing the impact of the event on the value of the marginal product of that factor.
– Example: Case Study- Black Death
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Quick Quiz! What determines the
income of the owners of land and capital?
How would an increase in the quantity of capital affect the incomes of those who already own capital? How would it affect the incomes of workers?
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Summary The three most important factors of
production are labor, land, and capital.
The demand for factors, such as labor, is a derived demand that comes from firms that use the factors to produce goods and services.
Competitive, profit-maximizing firms hire each factor up to the point at which the value of the marginal product of the factor equals its price.
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Summary The supply of labor arises from
individuals’ tradeoff between work and leisure.
An upward-sloping labor supply curve means that people respond to an increase in the wage by enjoying less leisure and working more hours.
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Summary
The price paid to each factor adjusts to balance the supply and demand for that factor.
Because factor demand reflects the value of the marginal product of that factor, in equilibrium each factor is compensated according to its marginal contribution to the production of goods and services.
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Summary Because factors of production
are used together, the marginal product of any one factor depends on the quantities of all factors that are available.
As a result, a change in the supply of one factor alters the equilibrium earnings of all the factors.