ECO100Y1 Lecture Notes - Lecture 7: Marginal Cost

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bluegrasshopper710

18 Jan 2018

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Document Summary

Avc(=tvc/q) eventually rises as q increases since mc eventually rises as q increases. Crucial result: mc intersects atc at minimum of atc because. If mc>atc, atc is rising [marginal cost>average total cost] If mc) Produce the tv since exceeds your cost of production, which is . Short run (there is a fixed factor of production): In short run, gm must hire more workers to increase output ((cid:862)law of diminishing returns(cid:863) applies) In long run, gm can build more assembly plants as well as hire more workers. 2. 1 (cid:862)law of diminishing returns(cid:863) does not apply.

Related Questions

Given following Price and Total Cost functions:

P = 120 - 7Q

TC = 40 + 70Q - 10Q² + 0.6Q³

Where P = price, and Q is output.

Fill in the table below and answer the questions below the table.

Q	P	FC	TVC	TC	TR	Profit
0
1
2
3
4
5
6
7
8
9
10

If your company's goal is to maximize profit, answer the following questions below:

What price will you charge for your product?

What quantity will you produce?

And what would be your maximum profit or minimum loss at the price and output you chose?

2. If your company's goal is to maximize total revenue, answer the following questions below:

What price will you charge for your product?

What quantity will you produce?

And what would be your maximum total revenue at the price and output you chose? (3 points)

Question 3

Given a firm with the following cost data, fill in the table below.

Q = OUTPUT TFC = Total Fixed Cost AVC = Average Variable Cost ATC = Average Total Cost TVC = Total Variable Cost MC = Marginal Cost TC = Total Cost

Q	FC	TVC	TC	AVC	ATC	MC
0				---	---	---
1						10
2
3				10		10
4

yellowsea-lion638

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

1.The ATC curve for a natural monopoly falls as output increases.

(A) Rises as output increases.

(B) Stays the same as output increases.

2. At what point would the government need to subsidize a price-regulated monopoly in order to keep it from exiting the market in the long run?

(A) Price < ATC

(B) Price < MC

(D) ATC > MC

3. Forcing a natural monopoly to provide a minimum amount of a good or service would likely cause the firm to

(A) Cease production unless the government provides a subsidy

(B) Reduce costs through improved efficiency

(D) Inflate costs to increase maximum allowable profits

4. Regulation is appropriate if

(A) Market failure exists.

(B) Market failure exists and the benefit of regulation outweighs the cost.

(D) Regulation is costless.

5. Before the deregulation in the airline industry, airlines charged higher rates on long flights in order to make short flights cheaper. Such a practice is an example of:

(A) Cross-subsidization

(B) Price discrimination

(D) Externalities