supply · the production function this concept illustrates the law of variable proportions within a...
TRANSCRIPT
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Section 1, Chapter 5 1
CHAPTER 5
Supply
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South Carolina
Governor Henry McMaster
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Section 1, Chapter 5 3
AN INTRODUCTION
TO SUPPLY
Supply is the amount of a product that would be offered for sale at all possible prices in the market.
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Section 1, Chapter 5 4
AN INTRODUCTION
TO SUPPLY
(continued)
The Law of Supply states that suppliers will normally offer more for sale at high prices and less at lower prices.
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Section 1, Chapter 5 5
AN INTRODUCTION
TO SUPPLY
(continued)
An individual supply curveillustrates how the quantity that a producer will makevaries depending on the price that will prevail in the market.
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Section 1, Chapter 5 7
AN INTRODUCTION
TO SUPPLY
(continued)
A market supply curveillustrates the quantities and prices that all producers will offer in the market for any given product or service.
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Section 1, Chapter 5 8
AN INTRODUCTION
TO SUPPLY
(continued)
Economists analyze supply by listing quantities and prices in a supply schedule (table). When the supply data is graphed, it forms a supply curve with an upward slope.
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Section 1, Chapter 5 9
CHANGE IN
QUANTITY SUPPLIED
A change in quantity supplied is the change in the amount offered for sale in response to a change in price.
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Section 1, Chapter 5 11
CHANGE IN
QUANTITY SUPPLIED
(continued)
Producers have the freedom, if prices fall too low, to slow or stop production or leave the market completely.
If the price rises, the producer can step up production levels.
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Section 1, Chapter 5 12
CHANGE IN SUPPLY
A change in supply is when suppliers offer different amounts of products for sale at all possible prices in the market.
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Section 1, Chapter 5 13
CHANGE IN SUPPLY
(continued)
Factors that can cause a change in supply include: the cost of inputs; productivity levels; technology; taxes or the level of subsidies; expectations; and government regulations.
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Section 1, Chapter 5 15
ELASTICITY OF SUPPLY
Supply is elastic when a small increase in price leads to a larger increase in output and supply.
Supply is inelastic when a small increase in price causes little change in supply.
Supply is unit elastic when a change in price causes a proportional change in supply.
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Section 1, Chapter 5 16
ELASTICITY OF SUPPLY
(continued)
Determinants of supply elasticity are related to how quickly a producer can act when the change in price occurs.
If adjusting production can be done quickly, the supply is elastic.
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Section 1, Chapter 5 17
ELASTICITY OF SUPPLY
(continued)
If production is complex and requires much advance planning, the supply is inelastic.
Another factor is substitution: if substituting for a given product is easy, the supply is elastic; if it is difficult to substitute, the supply is inelastic.
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Section 2, Chapter 5 19
LAW OF VARIABLE
PROPORTIONS
In the short run, outputwill change as one variable input is altered, but other inputs are kept constant.
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Section 2, Chapter 5 20
LAW OF VARIABLE
PROPORTIONS
(continued)
The Law of Variable Proportions looks at how the final product is affected as more units of one variable input or resource are added to a fixed amount of other resources.
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Section 2, Chapter 5 22
THE PRODUCTION FUNCTION
This concept illustrates the Law of Variable Proportionswithin a production schedule or a graph.
It describes the relationship between changes in output to different amounts of a single input while others are held constant.
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Section 2, Chapter 5 23
THE PRODUCTION FUNCTION
(continued)
Total product is the total output the company produces.
A production schedule shows that, as more workers are added, total product rises until a point that adding more workers causes a decline in total product.
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Section 2, Chapter 5 24
THE PRODUCTION FUNCTION
(continued)
Marginal product is the extra output or change in total product caused by adding one more unit of variable input.
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Section 2, Chapter 5 26
THREE STAGES OF
PRODUCTION
In Stage I (increasing returns),marginal output increases with each new worker. Companies are tempted to hire more workers, which moves them to Stage II.
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Section 2, Chapter 5 27
THREE STAGES OF
PRODUCTION
(continued)
In Stage II (diminishing returns), total production keeps growing, but the rate of increase is smaller.
In Stage II each worker is still making a positive contribution to total output, but it is diminishing.
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Section 2, Chapter 5 28
THREE STAGES OF
PRODUCTION
(continued)
In Stage III (negative returns), marginal product becomes negative, decreasing total plant output.
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Section 3, Chapter 5 30
THE MEASURES OF COST
Fixed costs are those that a
business has even if it has no
output.
Fixed costs include
management salaries, rent,
taxes, and depreciation on
capital goods.
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Section 3, Chapter 5 31
THE MEASURES OF COST
(continued) Variable costs are those that
change when the rate of
operation or production
changes.
Variable costs include hourly
labor, raw materials, freight
charges, and electricity.
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Section 3, Chapter 5 33
THE MEASURES OF COST
(continued)
Total cost is the sum of all fixed
costs and all variable costs.
Marginal cost is the extra
(variable) costs incurred when
a business produces one
additional unit of a product.
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Section 3, Chapter 5 34
APPLYING COST PRINCIPLES
A self-service gas station is an
example of high fixed costs
with low variable costs. The
ratio of variable to fixed costs
is low.
E-commerce (internet) is an
example of an industry with
low fixed costs.
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Section 3, Chapter 5 36
MEASURES OF REVENUE
Total revenue is the number of
units sold multiplied by the
average price per unit.
Marginal revenue is the extra
revenue connected with
producing and selling an
additional unit of output.
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Section 3, Chapter 5 37
MARGINAL ANALYSIS
Marginal analysis is comparing
the extra benefits to the extra
costs of a particular decision.
The break-even point is the
total output or total product the
business needs to sell in order
to cover its total costs.
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Section 3, Chapter 5 39
MARGINAL ANALYSIS
(continued)
Businesses want to find
the number of workers
and the level of output
that generates maximum
profits.
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Section 3, Chapter 5 40
MARGINAL ANALYSIS
(continued)
The profit-maximizing
quantity of output is
reached when marginal
cost and marginal revenue
are equal.
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A Change in
Quantity Supplied
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A Change in Quantity Supplied
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A Change in Quantity Supplied
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A Change in Quantity Supplied
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A Change in
Supply
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Increase in Supply
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Increase in Supply
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Decrease in Supply
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Decrease in Supply