ECON101 Lecture Notes - Lecture 16: Marginal Product, Marginal Cost, Variable Cost

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blushworm378

1 Jul 2019

School

University of Waterloo

Department

Economics

Course

ECON101

Professor

Predrag Rajsic

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ECON101 Full Course Notes

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Why the average total cost curve is u-shaped. The atc curve is the vertical sum of the afc curve and the avc curve. The shapes of a firm"s cost curves are determined by the technology it uses. We"ll look first at the link between total cost and total product and then at the links between the average and marginal product and cost curves. Figure 10. 6 show s when output is plotted against labour, the curve is the tp curve. When output is plotted against variable cost, the curve is the tvc curve but it is flipped over. The shapes of a firm"s cost curves are determined by the technology it uses: Mc is at its minimum at the same output level at which mp is at its maximum. When mp is rising, mc is falling. Avc is at its minimum at the same output level at which ap is at its maximum. When ap is rising, avc is falling.

Related Questions

Q1. Average total cost is equal to
a. AFC + AVC
b. AFC/total output
c. AFC/AVC
d. AVC/AFC

Q2. As output increases, the ATC
a. increases
b. decreases
c. remains constant
d. falls and then rises

Q3. Total profit is equal to
a. total revenue minus total cost
b. total revenue minus explicit cost
c. total revenue minus variable cost
d. total revenue minus marginal cost

Q4. Marginal cost crosses the
a. AVC curve at the highest point of the AVC curve
b. ATC curve at the lowest point of the ATC curve
c. AFC curve at the lowest point of the AFC curve
d. ATC curve at the highest point of the ATC curve

Q5. Wages paid are an example of an explicit cost of doing business.
a. true
b. false

Q6. Any revenue over and above total cost is labeled economic profit.
a. true
b. false

Q7. If the selling price of a product is $10, the average total cost is $8, and total sales are 5,000 units, the total profit will be
a. $5,000
b. $8,000
c. $10,000
d. $20,000

Q8. Whenever marginal revenue exceeds marginal cost,
a. profit declines if output increases
b. profit increases if output increases
c. losses increase if output increases
d. marginal revenue must be rising

Q9. Under perfectly competitive conditions, marginal revenue is
a. greater than average revenue
b. equal to average revenue
c. less than average revenue
d. equal to the average variable

Q10. A firm's break-even point occurs where
a. marginal revenue equals marginal cost
b. marginal revenue equals average variable cost
c. total revenue equals total cost
d. total revenue equals total variable cost

Q11. The addition to total output resulting from using one more unit of a productive resource is the
a. average product
b. marginal input
c. total product
d. marginal product

Q12. Unlike a firm in pure competition, a monopolist may be able to
a. block the entry of new firms into the industry
b. continue to earn economic profits in the long run
c. earn economic profits in the short run
d. both (a) and (b)

Q13. Producer surplus is the difference between the price the firm is willing to sell its goods and the price it actually receives.
a. true
b. false

Q14. In the long run, under conditions of perfect competition, market forces come into play to
a. enhance profits
b. increase demand
c. eliminate profits
d. separate MR and AR

Q15. Consumer surplus is the area above the demand curve and below the equilibrium price.
a. true
b. false

Q16. Under perfect competition, market price is determined by market demand and supply.
a. true
b. false

Q17. The more that firms advertise, the closer they get to perfect competition.
a. true
b. false

Q18. Perfect competition assumes that a producer is interested in maximizing profit.
a. true
b. false

Q19. In the long run, under conditions of perfect competition, the buyer will eventually be able to buy the product at a
a. price equal to the lowest point on the ATC curve past the optimal scale of operation
b. price below cost
c. price equal to the lowest point on the ATC curve at the optimal scale of operation
d. discount

Q20. The lowest possible ATC curve is attained at the optimal scale of output.
a. true
b. false

a. Construct the cost schedule using the data below for a firm operating in the short run.

b. Graph the average variable cost, average total cost, and marginal cost curves.

Total Output (Q)	Total Fixed Cost (TFC)	Total Variable cost (TVC)	Total Cost (TC)	Marginal Cost (MC)	Average Fixed cost (AFC)	Average Variable Cost (AVC)	Average Total Cost (ATC)
0			$50
1			$70
2			$85
3			$95
4			$100
5			$110
6			$130
7			$165
8			$215
9			$275

carminewombat10

Construct the cost schedule using the data below for a firm operating in the short run. Graph the average variable cost, the average total cost, and marginal cost curves.

Total Output (Q)	Total fixed cost (TFC) (in $)	Total variable cost (TVC) (in $)	Total cost (TC) (in $)	Marginal cost (MC) (in $)	Average fixed cost (AFC) (in $)	Average variable cost (AVC) (in $)	Average total cost (ATC) (in $)
0	50		50
1			70
2			85
3			95
4			100
5			110
6			130
7			165
8			215
9			275

jadelocust688

ECON101 Lecture Notes - Lecture 16: Marginal Product, Marginal Cost, Variable Cost

ECON101 Full Course Notes

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