Costs , Supply And Perfect Competition

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1.In the context of a perfectly competitive firm, what represents its short-run supply curve and its long-run supply curve respectively?

Short-run marginal cost (SMC), long-run marginal cost (LMC)SMC curve above the short-run average variable cost (SAVC), LMC curve above the long-run average cost (LAC)SMC curve below the short-run average variable cost (SAVC), LMC curve above the long-run average cost (LAC)SMC curve below the short-run average variable cost (SAVC), LMC curve below the long-run average cost (LAC)None of the above

2.Under what condition will a firm cease production and produce nothing in the short term?

When the price exceeds the short-run average total costWhen the price lies between the short-run average total cost and average variable costWhen the price falls below the short-run average variable costWhen the firm breaks even and earns zero profit

3.In the short run, the average total cost is composed of which two components?

Short-run opportunity costs and profitsShort-run variable costs plus profitsShort-run average variable costs combined with average fixed costsShort-run average variable costs and profit run average fixed costs

4.What is the relationship between marginal cost and average cost when the average cost is decreasing and when it is increasing?

Marginal cost is higher than average cost in both casesMarginal cost is lower than average cost when average cost is falling, and higher than average cost when average cost is risingMarginal cost is lower than average cost in both situationsMarginal cost is higher than average cost when average cost is decreasing, and lower than average cost when average cost is increasingMarginal cost equals average cost regardless of average cost trend

5.What does it indicate when the long-run average cost curve slopes downward from left to right?

Increasing returns to scaleDecreasing returns to scaleConstant returns to scaleThe minimum efficient scale

6.Which characteristic best describes a monopoly market structure?

The market has a limited number of sellersThere are only a small number of buyersA single seller dominates the marketNumerous sellers compete in the market

7.According to Porter's Five Forces framework, what is the likely impact on supplier power when a company acquires one of its competitors?

The influence of buyers increasesThe bargaining strength of suppliers risesThe risk of substitutes becomes greaterCompetition among existing rivals decreasesNone of the above

8.In a monopolistic competition market, when firms earn abnormal profits, what is the expected effect on marginal cost as new firms enter the industry?

Marginal cost curve will shift outwardDemand curve will move inwardAverage cost curve will declineAverage variable cost will rise

10.Which statement accurately describes the relationship between marginal revenue and the demand curve in monopolistic competition?

The demand curve is completely elastic.All products offered are identical.Marginal revenue equals the price of the product.Marginal revenue lies beneath the demand curve and moves away from it.

11.In a perfectly competitive market at long-run equilibrium, firms are characterized by which of the following conditions?

Producing at the lowest point on their average total cost curveAll of the listed conditions are trueOperating at their most efficient production scaleEarning zero economic profitWhere marginal cost equals marginal revenue

12.When a key production input is scarce, causing cost increases for all current firms as the industry grows, what shape does the long-run market supply curve likely take?

completely unresponsive to price changesentirely responsive to price variationsrising as quantity supplied increasesfalling as more quantity is suppliedconstant regardless of output level

13.Over the long term, firms will leave the market if the selling price of their product falls below which of the following?

the additional revenue from selling one more unitthe extra cost incurred by producing one more unitthe total cost per unit on averagethe revenue earned per unit sold

14.Under what condition should a grocery store decide to close during nighttime hours?

If the variable expenses of remaining open are lower than the revenue generated by staying open.If the overall costs of operating during the night are less than the income earned by staying open.If the variable expenses of staying open exceed the revenue earned from operating at night.If the total costs of nighttime operation surpass the revenue obtained from staying open.

15.Which segment of the marginal cost curve represents the short-run supply curve for a perfectly competitive firm?

The rising segment of the average total cost curveThe increasing portion of the average variable cost curveThe part of the marginal cost curve above the average total cost curveThe full marginal cost curveThe section of the marginal cost curve that lies above the average variable cost curve

16.At what point does a perfectly competitive firm achieve maximum profit through its production level?

When the price is equal to the average variable costWhen marginal revenue matches average revenueWhen marginal cost is the same as total revenueWhen marginal cost is equal to marginal revenue

17.What happens to the total revenue of a perfectly competitive firm if it doubles its production?

It doubles.It increases by more than double.It increases by less than double.It is uncertain since the price might increase or decrease.

18.Which of the following does not describe a feature of a perfectly competitive market?

Every statement here accurately describes a competitive marketThe market consists of numerous buyers and sellersThe products sold are mostly identicalCompanies earn small yet positive economic profits over the long termBusinesses have the freedom to enter or leave the market without restrictions

19.In a perfectly competitive market, what relationship holds true in the long run?

Price equals both average cost and marginal costPrice is equal to average cost and total costPrice matches marginal cost and total costTotal revenue is the same as total variable cost

20.Which of the following best describes the market structure in perfect competition?

The market is controlled by a small number of companiesCompanies have the power to set pricesThere are numerous buyers but only a handful of sellersA large number of buyers and sellers participate

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