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Chapter 22. Profit Maximization. The Profit Motive. The basic incentive for producing goods & services is the expectation of profit. Profit is the difference between Total Revenue & Total Cost. Chapter 22. 2. Motives To Produce. A.K.A. - Why run your own business? Expected Profit

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the profit motive
The Profit Motive
  • The basic incentive for producing goods & services is the expectation of profit.
  • Profit is the difference between Total Revenue & Total Cost.

Chapter 22

2

motives to produce
Motives To Produce
  • A.K.A. - Why run your own business?
    • Expected Profit
    • Social Status
    • Flexible hours
    • Control
    • Sense of mission/purpose

Chapter 22

3

profit maximization
Profit Maximization
  • The objective of a for-profit firm is to maximize profit.
  • Each cost is an opportunity cost
    • the amount necessary to keep the owners of the resources from moving it to an alternative use.

Chapter 22

4

economic profit
Economic Profit
  • The difference between total revenues & total economic costs

Chapter 22

5

economic costs
Economic Costs
  • The value of all resources used in production
  • Includes:
    • Direct Costs of land, buildings, tools, ingredients & labor
    • Opportunity Costs for land, buildings, & tools
    • Cost of Debt – the interest paid on loans

Chapter 22

6

slide7
Risk
  • The potential for profit is not a guarantee of profit.
    • remember the risk-return tradeoff.
  • There are many risks to starting a business.

Chapter 22

7

market structure
Market Structure
  • The selling environment in which a firm produces and sells its product is called a market structure.
  • It is defined by three characteristics:
    • The number & size of firms in the market
    • The ease of entry and exit of firms
    • The degree of product differentiation

Chapter 22

8

5 market structures
5 Market Structures
  • Perfect (or Pure) Competition
  • Monopolistic Competition
  • Oligopoly
  • Duopoly
  • Monopoly

Chapter 22

9

perfect competition characteristics
Perfect Competition Characteristics
  • Many firms
  • Identical products – many substitutes
  • Low barriers to entry – easy to get into
  • Firm has no market power
  • Firm is a Price Taker
  • Advertising is unnecessary
  • Ex: Agriculture products.

Chapter 22

11

price takers
Price Takers
  • With so many producers, no single producer has market power. They have no control over the price they charge, because their customer’s can easily get the same product from somewhere else.
  • The Demand curve the firm faces is flat.
    • No single firm could come close to satisfying the total demand for the product.

Chapter 22

12

production decision
Production Decision
  • With no control over price, the firm has only one decision to make: How much to produce.
  • This is a short-term decision based on their existing plant & equipment, and the current price of their product.

Chapter 22

15

output revenues
Output & Revenues
  • Total Revenue = Price X Quantity
    • The more you produce, the more revenue you make

Chapter 22

16

output costs
Output & Costs
  • To maximize profits, a firm must consider how increased production will affect costs as well as revenues.
    • Fixed costs must be paid even if no output is produced
    • Variable costs increases as production increases

Chapter 22

17

output costs1
Output & Costs
  • Total Costs = TFC + TVC

Chapter 22

18

output costs2
Output & Costs
  • Total Costs = TFC + TVC

profit

loss

Chapter 22

19

output costs3
Output & Costs

Chapter 22

20

basic profit maximizing rule
Basic Profit Maximizing Rule
  • Never produce a unit of output that cost more than it brings in.
  • The goal of the firm is to maximize profit, not revenue.

Chapter 22

21

marginal revenue
Marginal Revenue
  • MR = Price
  • Change in revenue

Change in sales

  • Marginal means “extra”
    • This is the extra revenue for each extra item you sell. That is the price you sell it for.

Chapter 22

22

marginal revenue marginal cost
Marginal Revenue & Marginal Cost
  • Marginal revenue (Price) is the extra income from selling an extra item.
  • Marginal cost is the extra costs to produce that extra item.
  • So, we consider them at the same time…

Chapter 22

23

short run profit maximizing rules
Short-Run Profit Maximizing Rules

If:

  • Price > MC increase output (make more)
  • Price < MC decrease output (make less)
  • Price = MC maintain output
    • Profit maximizing point

Chapter 22

24

profit maximizing
Profit Maximizing

Chapter 22

25

adding up profits
Adding Up Profits
  • Total Profit = TR – TC

Or

  • Total Profit = (P-ATC) x Q

Chapter 22

26

goals
Goals:
  • The goal is to maximize total profit
  • Not to:
    • Maximize per-unit profit
    • Produce where ATC is at a minimum
  • It is about profit, not efficiency!

Chapter 22

27

profit maximizing1
Profit Maximizing

Chapter 22

28

examples
Examples:

AtMR=MC

  • Price = $3
  • ATC = $2.25
  • Q = 300
  • TR = $900
  • TC = $675
  • Profit = $225

At Minimum ATC

  • Price = $3
  • ATC = $2
  • Q = 200
  • TR = $600
  • TC = $400
  • Profit = $200

Chapter 22

29

taking a loss
Taking A Loss
  • Price < ATCPrice > AVC

Chapter 22

30

shutdown
Shutdown
  • Price < ATCPrice < AVC

Chapter 22

31

short run supply determinants
Short-Run Supply Determinants
  • The quantity produced is affected by anything that changes Marginal Cost
    • Price of inputs (ingredients)
    • Technology
    • Expectations
    • Taxes & Subsidies

Chapter 22

32

short run supply demand
Short-Run Supply & Demand
  • The MC curve is the short-run Supply curve for the company
    • (from the breakeven point to maximum profit point)

Chapter 22

33

taxes and supply
Taxes and Supply
  • Some taxes alter short run behavior
  • Some taxes alter long run behavior

Chapter 22

34

1 property taxes
1. Property Taxes
  • Are a fixed cost
  • Raises Total Costs & reduces total profit
  • Increases Breakeven quantity
    • Raises FC
  • Does not change Profit Maximizing quantity.
    • Do not alter marginal costs

Chapter 22

35

1 property taxes1
1. Property Taxes

Chapter 22

36

2 payroll taxes
2. Payroll Taxes
  • Are a variable cost
  • Raises Total Costs, reduces total profit & per-unit profit
  • Increases Breakeven quantity
    • Reduces Contribution Margin
  • Reduces Profit Maximizing quantity.
    • Increases marginal costs

Chapter 22

37

2 payroll taxes1
2. Payroll Taxes

Chapter 22

38

3 profit income taxes
3. Profit (income) Taxes
  • Are neither a fixed or variable cost
  • Does not change Breakeven quantity
  • Does not change Profit Maximizing quantity.
    • Do not alter marginal costs
  • Might affect investment decisions
  • Profit doesn’t change – just where the profit goes.

Chapter 22

39

4 sales taxes
4. Sales Taxes
  • Are neither a fixed or variable cost
  • Does not change Breakeven quantity
  • Does not change Profit Maximizing quantity.
    • Do not alter marginal costs
  • This is collected at the end of a sale.

Chapter 22

40

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