Class 12 Micro Economics - Chapter Non-competitive Markets NCERT Solutions | What is the reason for the long run equi
What is the reason for the long run equilibrium of a firm in monopolistic competition to be associated with zero profit?
The long run time horizon is featured by the free entry and exit of firms. If the firms in the short run are earning abnormal or super normal profits, then, new firms will be attracted to enter the market. Due to the new entrants, the market supply will increase. It leads to the reduction in the price that ultimately falls sufficiently to become equal to the minimum of average cost. When the market price is equal to the minimum of AC, it implies that all the firms earn normal profit or zero economic profit. On the contrary, if in the short run the firms are earning abnormal losses, then the existing firms will stop production and exit the market. This will lead to a decrease in the market supply, which will ultimately raise the price. The price will continue to rise until it becomes equal to the minimum of AC. Price = AC implies that in the long run all the firms will earn zero economic profit. Hence, when the price is equal to the minimum of AC, neither any existing firm will exit nor any new firm will enter the market.
More Questions From Class 12 Micro Economics - Chapter Non-competitive Markets
- Q:-
List the three different ways in which oligopoly firms may have.
- Q:-
If duo poly behavior is one that is described by Cornet, the market demand curve is given by the equation q = 200 - 4p and both the firms have zero costs, find the quantity supplied by each firm in equilibrium and the equilibrium market price.
- Q:-
Will the monopolist firm continue to produce in the short run if a loss is incurred at the best short run level of output?
- Q:-
Comment on the shape of MR curve in case when TR curve is a
(a) Positively sloped straight line
(b) Horizontal straight line
- Q:-
A monopoly firm has a total fixed cost of Rs 100 and has the following demand schedule:
Quantity
1
2
3
4
5
6
7
8
9
10
Marginal
Revenue
100
90
80
70
60
50
40
30
20
10
Find the short run equilibrium quantity, price and total profit. What would be the equilibrium in the long run? In case the total cost is Rs.1000, describe the equilibrium in the short run and in the long run.
- Q:-
From the schedule provided below calculate the total revenue, demand curve and the price elasticity of demand:
Quantity
1
2
3
4
5
6
7
8
9
Marginal
Revenue
10
6
2
2
2
0
0
0
-
- Q:-
What would be the shape of the demand curve so that the total revenue curve is?
(a) A positively sloped straight line passing through the origin?
(b) A horizontal line?
- Q:-
If the monopolist firm of Exercise 3 was a public sector firm. The government set a rule for its manager to accept the government fixed price as given (i.e. to be a price taker and therefore behave as a firm in a perfectly competitive market). And the government has decided to set the price so that demand and supply in the market are equal. What would be the equilibrium price, quantity and profit in this case?
- Q:-
Explain why the demand curve facing a firm under monopolistic competition is negatively sloped.
- Q:-
What is meant by prices being rigid? How can oligopoly behavior lead to such an outcome?
Popular Questions of Class 12 Micro Economics
- Q:-
Explain the concept of a production function
- Q:-
Explain market equilibrium.
- Q:-
Discuss the central problems of an economy.
- Q:-
What are the characteristics of a perfectly competitive market?
- Q:-
What do you mean by the budget set of a consumer?
- Q:-
What is the total product of input?
- Q:-
When do we say that there is an excess demand for a commodity in the market?
- Q:-
What do you mean by the production possibilities of an economy?
- Q:-
How are the total revenue of a firm, market price, and the quantity sold by the firm related to each other?
- Q:-
What is budget line?
Recently Viewed Questions of Class 12 Micro Economics
- Q:-
Suppose the demand and supply curves of salt are given by:
(a) Find the equilibrium price and quantity.
(b) Now, suppose that the price of an input that used to produce salt has increased so, that the new supply curve is qs = 400 + 3p
How does the equilibrium price and quantity change? Does the change conform to your expectation?
(a) Suppose the government has imposed at ax of Rs 3 per unit of sale on salt. How does it affect the equilibrium rice quantity?
- Q:-
Discuss the central problems of an economy.
- Q:-
Consider a market where there are just two consumers and suppose their demands for the good are given as follows:
Calculate the market demand for the good.
p
d1
d2
1
9
24
2
8
20
3
7
18
4
6
16
5
5
14
6
4
12
- Q:-
Suppose a consumer’s preferences are monotonic. What can you say about her preference ranking over the bundles (10, 10), (10, 9) and (9, 9)?
- Q:-
Using supply and demand curves show how an increase in the price of shoes affects the price of a pair of socks and the number of pairs of socks bought and sold.
- Q:-
What are the average fixed cost, average variable cost and average cost of a firm? How are they related?
- Q:-
A consumer wants to consume two goods. The prices of the two goods are Rs 4
and Rs 5 respectively. The consumer’s income is Rs 20.
(i) Write down the equation of the budget line.
(ii) How much of good 1 can the consumer consume if she spends her entire
income on that good?
(iii) How much of good 2 can she consume if she spends her entire income on
that good?
(iv) What is the slope of the budget line?
Questions 5, 6 and 7 are related to question 4. - Q:-
A firm earns a revenue of Rs 50 when the market price of a good is Rs 10. The market price increases to Rs 15 and the firm now earns a revenue of Rs 150. What is the price elasticity of the firm’s supply curve?
- Q:-
Compute the total revenue, marginal revenue and average revenue schedules in the following table. Market price of each unit of the good is Rs 10.
Quantity Sold TR MR AR 0
1
2
3
4
5
6 - Q:-
Explain how price is determined in a perfectly competitive market with a fixed number of firms.
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