All Exams Test series for 1 year @ ₹349 only
Question

Which of the following is not true for perfect competition ?

The correct answer is
Market demand curve for a commodity is horizontal to X-axis

Perfect Competition Characteristics Analysis

The question asks to identify the statement that is not true for a market structure characterized by perfect competition.

Evaluating Each Option:

  • Option 1: $Price = LAC$

    In the long run, perfect competition leads to firms earning only normal profits due to free entry and exit. Normal profit occurs when Price (P) equals Long-Run Average Cost (LAC). Thus, $P = LAC$ is true.

  • Option 2: $Market demand curve for a commodity is horizontal to X-axis$

    The market demand curve depicts the relationship between the total quantity demanded and price for the entire market. Like most demand curves, it slopes downwards. A horizontal demand curve represents perfect elasticity, which applies to the individual firm in perfect competition, not the market. Therefore, this statement is not true.

  • Option 3: $Firms earn normal profits$

    Free entry and exit in perfect competition ensure that supernormal profits attract new firms, driving down prices, while losses cause firms to exit, raising prices. This adjustment results in firms earning only normal profits (zero economic profit) in the long run. Thus, this statement is true.

  • Option 4: $In the long run firms operate at the minimum point of average cost$

    In long-run equilibrium under perfect competition, firms achieve productive efficiency by producing at the lowest possible average cost. This occurs where Marginal Cost (MC) equals LAC at its minimum point. Since firms also produce where $P = MC$ and $P = LAC$, they operate at the minimum point of LAC. Thus, this statement is true.

Conclusion

The statement that is not true for perfect competition is that the market demand curve is horizontal. The market demand curve slopes downwards, while the individual firm's demand curve is horizontal.

Correct Statement Identified: Option B

Was this answer helpful?

Important Questions from Microeconomics

  1. Which of the following statement is correct?

    I. Indifference curves are sloping from left to right.

    II. Higher indifference curve gives a higher level of utility.

  2. If in a production process, all inputs are tripled, which of the following statements follows?

    I. If the output is tripled, then decreasing returns to scale apply.

    II. When the output is doubled, constant returns to scale apply.

    III. If the output is more than tripled, then increasing returns to scale apply.

  3. When it is not possible to make someone good without harming someone, then such a situation is called

  4. According to Ricardo what condition is necessary to make possible international trade between two countries?

  5. Match List I with List II:

    List- I

    Shape of revenue curve of the firm 

    List – II

    Market structure 

    A.

    Kinked revenue-curve 

    (I)

    Monopolistic competition

    B.

    Infinitely elastic straight line curve 

    (II)

    Perfect competition 

    C.

    Relatively less elastic curve 

    (III)

    Oligopoly 

    D.

    Relatively high elastic curve 

    (IV)

    Monopoly. 

    Choose the correct answer from the options given below -  
Need Expert Advice?

Start Your Preparation with Prepp Mobile App

Download the app from Google Play & App Store
Download the app from Google Play & App Store
Prepp Mobile App