Microeconomics Perfect Competition Long Run
34 flashcards covering Microeconomics Perfect Competition Long Run for the MICROECONOMICS Microeconomics Topics section.
Perfect competition in the long run is a fundamental concept in microeconomics that describes a market structure where numerous firms compete, leading to an equilibrium where no individual firm can influence market prices. This topic is defined within the curriculum of the Principles of Microeconomics, often guided by resources from the American Economic Association. Understanding the characteristics of perfect competition, such as price-taking behavior and the implications for efficiency and resource allocation, is essential for grasping broader economic principles.
On practice exams and competency assessments, questions about long-run perfect competition often require the application of concepts like cost curves, profit maximization, and market entry or exit. Common traps include confusing short-run and long-run dynamics or overlooking the role of fixed and variable costs in determining firm behavior. A frequent pitfall is failing to recognize that in the long run, firms earn normal profits, which can lead to misconceptions about the sustainability of economic profits in competitive markets. Remember, in real-world scenarios, firms must continuously innovate to maintain competitiveness despite the pressure of zero economic profits.
Terms (34)
- 01
What characterizes the long-run equilibrium in a perfectly competitive market?
In the long run, firms in a perfectly competitive market earn zero economic profit, as price equals average total cost (ATC) at the minimum point of the ATC curve. This occurs because free entry and exit of firms drive profits to zero (Mankiw, Principles of Economics).
- 02
How do firms respond to economic profits in the long run under perfect competition?
When firms earn economic profits in the short run, new firms enter the market, increasing supply and driving down prices until profits are eliminated in the long run (Krugman, Principles of Economics).
- 03
What happens to firms in a perfectly competitive market when they incur losses in the long run?
Firms experiencing losses will exit the market in the long run, reducing supply and causing prices to rise until remaining firms can break even (Wells, Principles of Economics).
- 04
What is the condition for long-run equilibrium in a perfectly competitive market?
Long-run equilibrium occurs when price equals marginal cost (MC) and average total cost (ATC), leading to zero economic profit for firms (Mankiw, Principles of Economics).
- 05
What is the role of barriers to entry in perfect competition?
In perfect competition, there are no barriers to entry or exit, allowing firms to freely enter or leave the market based on profitability (Krugman, Principles of Economics).
- 06
How does the long-run supply curve behave in a perfectly competitive market?
The long-run supply curve in a perfectly competitive market is typically horizontal, indicating that firms can enter or exit without affecting the market price (Wells, Principles of Economics).
- 07
What is the significance of the minimum efficient scale in long-run perfect competition?
The minimum efficient scale is the lowest output level at which long-run average costs are minimized. In perfect competition, firms operate at this scale to achieve efficiency (Mankiw, Principles of Economics).
- 08
Under perfect competition, what happens to consumer and producer surplus in the long run?
In the long run, consumer surplus is maximized while producer surplus is minimized, as firms earn zero economic profit and resources are allocated efficiently (Krugman, Principles of Economics).
- 09
What is the long-run adjustment process in a perfectly competitive market?
The long-run adjustment process involves firms entering or exiting the market in response to economic profits or losses, leading to a new equilibrium where price equals ATC (Wells, Principles of Economics).
- 10
How does long-run equilibrium affect resource allocation in a perfectly competitive market?
In long-run equilibrium, resources are allocated efficiently, as firms produce where price equals marginal cost, maximizing total welfare (Mankiw, Principles of Economics).
- 11
What is the impact of technological advancements on long-run equilibrium in perfect competition?
Technological advancements can shift the long-run average cost curve down, allowing firms to produce at lower costs, potentially leading to lower prices and increased consumer surplus (Krugman, Principles of Economics).
- 12
How does the entry of new firms affect market supply in the long run?
The entry of new firms increases market supply, which typically lowers the equilibrium price until economic profits are eliminated (Wells, Principles of Economics).
- 13
What is the long-run average cost curve's shape in perfect competition?
The long-run average cost curve is typically U-shaped, reflecting economies of scale at lower output levels and constant returns to scale at higher levels (Mankiw, Principles of Economics).
- 14
What determines the number of firms in a perfectly competitive market in the long run?
The number of firms in a perfectly competitive market is determined by the demand for the product and the cost structure of firms, leading to zero economic profit (Krugman, Principles of Economics).
- 15
What is the effect of increased demand on long-run equilibrium in perfect competition?
Increased demand leads to higher prices and economic profits in the short run, prompting new firms to enter the market until long-run equilibrium is restored with zero economic profit (Wells, Principles of Economics).
- 16
How do firms achieve productive efficiency in the long run under perfect competition?
Firms achieve productive efficiency by producing at the minimum point of the average total cost curve in the long run, ensuring resources are used optimally (Mankiw, Principles of Economics).
- 17
What is the relationship between marginal cost and price in long-run equilibrium?
In long-run equilibrium, the price equals the marginal cost of production, ensuring that firms maximize profit and resources are allocated efficiently (Krugman, Principles of Economics).
- 18
What happens to the market price when firms exit a perfectly competitive market?
When firms exit, market supply decreases, leading to an increase in market price until the remaining firms can earn zero economic profit (Wells, Principles of Economics).
- 19
What is the long-run effect of a decrease in demand on a perfectly competitive market?
A decrease in demand leads to lower prices and economic losses for firms, prompting some to exit the market until long-run equilibrium is restored (Mankiw, Principles of Economics).
- 20
How does perfect competition ensure allocative efficiency in the long run?
Allocative efficiency is ensured in perfect competition as firms produce where price equals marginal cost, maximizing total welfare for consumers and producers (Krugman, Principles of Economics).
- 21
What is the significance of zero economic profit in long-run perfect competition?
Zero economic profit indicates that firms are covering all costs, including opportunity costs, and reflects a stable long-run equilibrium in the market (Wells, Principles of Economics).
- 22
How does the entry of firms affect the long-run supply curve in perfect competition?
The entry of firms shifts the long-run supply curve to the right, indicating an increase in supply and a decrease in equilibrium price until profits are eliminated (Mankiw, Principles of Economics).
- 23
What is the long-run impact of an increase in production costs on perfectly competitive firms?
An increase in production costs shifts the average total cost curve upward, potentially leading to losses and firm exit until equilibrium is restored (Krugman, Principles of Economics).
- 24
How do firms in perfect competition achieve long-run sustainability?
Firms achieve long-run sustainability by minimizing costs, maximizing efficiency, and adapting to changes in market conditions (Wells, Principles of Economics).
- 25
What is the effect of long-run equilibrium on consumer prices in perfect competition?
In long-run equilibrium, consumer prices reflect the minimum average total cost of production, ensuring consumers pay the lowest possible price (Mankiw, Principles of Economics).
- 26
What is the role of firm efficiency in long-run perfect competition?
Firm efficiency is crucial in long-run perfect competition as it allows firms to produce at lower costs, ensuring competitiveness and sustainability in the market (Wells, Principles of Economics).
- 27
How do changes in consumer preferences affect long-run equilibrium in perfect competition?
Changes in consumer preferences can shift demand, leading to adjustments in market supply and prices until a new long-run equilibrium is established (Mankiw, Principles of Economics).
- 28
What happens to the long-run average cost curve if firms achieve economies of scale?
If firms achieve economies of scale, the long-run average cost curve shifts downward, allowing firms to produce more efficiently at lower costs (Krugman, Principles of Economics).
- 29
What is the significance of the long-run marginal cost curve in perfect competition?
The long-run marginal cost curve is critical for determining the optimal output level, as firms produce where marginal cost equals price (Wells, Principles of Economics).
- 30
How does perfect competition affect innovation in the long run?
In perfect competition, innovation may be limited due to zero economic profits; firms may struggle to invest in research and development (Mankiw, Principles of Economics).
- 31
What is the impact of government intervention on long-run equilibrium in perfect competition?
Government intervention can disrupt the natural equilibrium by imposing regulations or taxes, potentially leading to inefficiencies and altered market dynamics (Krugman, Principles of Economics).
- 32
How does the long-run adjustment process relate to market efficiency in perfect competition?
The long-run adjustment process enhances market efficiency by ensuring that resources are allocated to their most valued uses, aligning production with consumer preferences (Wells, Principles of Economics).
- 33
What is the relationship between long-run equilibrium and market power in perfect competition?
In long-run equilibrium, firms have no market power as price equals marginal cost, ensuring competitive pricing and efficient resource allocation (Mankiw, Principles of Economics).
- 34
How do external shocks influence long-run equilibrium in perfect competition?
External shocks can shift supply or demand curves, leading to temporary imbalances that firms will adjust to until a new long-run equilibrium is reached (Krugman, Principles of Economics).