ECON 1 Lecture Notes - Lecture 30: Average Variable Cost, Marginal Revenue, Demand Curve

28 views3 pages

magentamuskrat366

3 Dec 2020

School

Irvine Valley College

Department

Economics

Course

ECON 1

Professor

Collinson

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

If price is below average variable cost, firm shuts down rather than produces. When price equals average variable cost, firm is indifferent but between producing or shutting down but still loses fixed costs. Above shutdown point, firm produces to minimize loss. When price equals average total cost, firm earns normal profit. Above break-even point, firm earns economic profit. Quantity supplied when above shutdown point is determined by intersection of marginal cost and marginal revenue curve. The portion of the firm"s marginal cost curve that is above lowest point on average variable cost curve(above shutdown point) becomes short-run firm supply curve. Short-run industry supply curve: horizontal sum of all firm"s short-run supply curves. Perfectly competitive firm supplies short-run quantity that maximizes profit or minimizes loss. Describe how taking the long-run view affects economic factors. In long run, firms have time to enter and leave and adjust its size. Firms in perfect competition earn normal profit.

Related Questions

7.) At the level of output where marginal revenue equals marginal cost, assume that the price of a competitive firm's product is between the firm's average total cost curve and its average variable cost curve. In this case the firm would
A. decrease output to reduce the costs.
B. continue to operate in the short run.
C. shut down.
D. increase output to increase profit.
8.) The lowest point on the firm's long-run supply curve is
A. the shutdown point.
B. the break-even point.
C. between the shutdown point and the break-even point.

20) When price is less than average variable cost at the profit-maximizing level of output, a firm should: A) continue to produce the level of output at which marginal revenue equals marginal cost if it is operating in the long run. B) shutdown, because it cannot even cover all of its variable costs let alone its fixed costs if it stays in business. C) shutdown, because it will lose nothing in that case. D) continue to produce the level of output at which marginal revenue equals marginal cost if it is operating in the short run. 21) When price is greater than average variable cost but less than average total cost at the profit-maximizing level of output, a firm should: A) continue to produce the level of output at which marginal revenue equals marginal cost. B) shutdown to minimize its losses. C) reduce output to the level at which price equals average variable cost to minimize its losses. D) increase output to minimize its losses. 22) Assume that at the current market price, a perfectly competitive firm's profit-maximizing level of output yields total revenues that are just equal to total costs. Which of the following statements applies to this firm? A) The firm should increase its explicit costs to reduce its tax burden. B) The firm should shut down right now. C) The firm should continue to operate in the short run to minimize losses, but shut down if things don't improve over the long run. D) The firm is earning zero economic profit and should continue to operate. 23) The perfectly competitive firm's supply curve: A) coincides with its perfectly elastic demand curve. B) is the firm's average total cost curve above the shutdown point. C) is perfectly inelastic at the market price. D) is the firm's marginal cost curve above the minimum point on the AVC curve. 24) Assume there is a decrease in the market demand for a good sold by price-taking firms that are initially producing the profit-maximizing level of output. How will the market adjust over time? A) Firms will exit the market, causing price to rise until losses are eliminated. B) Firms will exit the market, causing price to fall until positive profits are eliminated. C) Firms will enter the market, causing price to fall until positive profits are eliminated. D) Firms will enter the market, causing price to rise until losses are eliminated. 25) What is the "most efficient capacity" for the perfectly competitive firm? A) The plant size for which Price = AR. B) The plant size at which LRAC is at its minimum. C) The plant size at which MR = MC. D) The plant size at which any of the SRATC curves are tangent to the LRAC curve.

greenrat247

Consider a market with many firms that have different cost structures.

Unless shutdown or exit is optimal, every firm expands production until ___________.

marginal product is maximized.

B. marginal revenue, marginal cost, and price are all equal

(MR = MC = P)

C. marginal revenue is equal to the minimum of the short-run average total cost.

D. marginal cost is minimized.

To construct the supply curve in a market with many firms with different cost structures, the ___________.

individual supply curves for each firm are added together.

individual average variable cost curves are added together.

minimums of theâ firms' marginal cost curves are linked together.

minimums of theâ firms' long-run average total cost curves are linked together.

The equilibrium price is the ___________.

âlong-run average total cost of the last entrant into the market.

the average marginal cost of the firms.

the long-run average total cost of the first entrant into the market.

minimum of the average variable cost of the smallest firm in the market.

In terms of economic profits, early market entrants earn

(negative

zero

positive)

economic profits and the last entrant earns

(negative

zero

positive)

economic profits.

A perfectly competitive firm will choose to shut down when the (price (marginal revenue)/ average total cost) intersects the marginal cost curve below the ( total cost curve average variable cost curve ).

Therefore, the short-run supply curve for a perfectly competitive firm is represented by __________.

A. the portion of the average variable cost curve below marginal cost. B. the portion of the average variable cost curve above marginal cost. C. the portion of the marginal cost curve above the average total cost. D. the portion of the marginal cost curve above average variable cost.

In the long run, the supply curve for a perfectly competitive firm is represented by __________.

A. the portion of the marginal cost curve above the average total cost. B. the portion of the marginal cost curve above average variable cost. C. the portion of the average variable cost curve below marginal cost. D. the portion of the average variable cost curve above marginal cost.

mauvemacaw466

ECON 1 Lecture Notes - Lecture 30: Average Variable Cost, Marginal Revenue, Demand Curve

Document Summary

Get access

Related Documents

ECON 1 Lecture Notes - Lecture 17: Market Power, W. M. Keck Observatory, Demand Curve

ECON 1 Lecture Notes - Lecture 29: Diminishing Returns, Average Variable Cost, Average Cost

ECON 1 Lecture Notes - Lecture 15: Marginal Cost, Monopolistic Competition, Productive Efficiency

Related Questions