Home
NCERT Soltions
Class 12
Micro Economics
Non-competitive Markets
If duo poly behavior is one that is described by Cornet, the market de...

If duo poly behavior is one that is desc | Class 12 Micro Economics Chapter Non-competitive Markets, Non-competitive Markets NCERT Solutions

Welcome to the NCERT Solutions for Class 12 Micro Economics - Chapter Non-competitive Markets. This page offers a step-by-step solution to the specific question from Exercise 1, Question 12: . With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.

Question 12:

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.

Answer:

Market demand curve

Q = 200 - 4p

When the call for curve is an immediate line and general price is 0, the duopolistic unearths it most worthwhile to deliver half of the maximum demand of an excellent.

At P =Rs zero, marketplace call for is Q = two hundred – 4 (0) = 200 units

If firm B does not produce anything, then the market demand confronted by means of company A is 2 hundred devices. consequently, The supply of firm A = ½ * 200 = a hundred gadgets within the next spherical, the portion of market call for faced via company B is 200 -200/2 = two hundred – one hundred = one hundred devices.

Consequently, firm B might supply ½ (two hundred – two hundred/2) = 50 units

accordingly, company B has modified its supply from 0 to 50 gadgets. To this company A might react thus and the demand faced through firm A can be 2 hundred -1/2*(two hundred-200/2) = two hundred – 50 = one hundred fifty devices consequently, firm A might supply = 150/2 = seventy five gadgets

The amount furnished through firm A and firm B is represented within the table under.

Round	Firm	Quantity Supplied
1	B	0
2	A	½ * 200 = 200/2 = 100
3	B	½ * ( 200 – ½ * 200 ) = 200/2 – 200/4
4	A	½ * 200–½(200–½∗200)200–½(200–½∗200) = 200/2 – 200/4 + 200/8
5	B	½ * {200 – ½ 200–(1/2200–½∗200)200–(1/2200–½∗200)} = 200/2 – 200/4 + 200/8 – 200/16

Therefore, the equilibrium output supplied by firm A = 200/2 – 200/4 + 200/8 -200/16+200/32+ 200/64 + 200/128 + 200/256+… = 200/3 units

Similarly, the equilibrium output supplied by firm B = 200/3 units.

Market Supply = Supply by firm A+ Supply by firm B = 200/3 + 200/3

Equilibrium output or Market Supply = Q = 400/3 units…………… (1)

For equilibrium price

Q = 200 - 4p

= 200 – Q

P = 50 – Q/4

P = 50 – ¼ (400/3) (from (1))

P = 50 – 100/3

P = 50-100/3

P = Rs. 50/3

Therefore, the equilibrium output (total) is 400/3 units and equilibrium cost is Rs. 50/3.

Other Questions of Chapter Non-competitive Markets

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?

List the three different ways in which oligopoly firms may have.

What is the reason for the long run equilibrium of a firm in monopolistic competition to be associated with zero profit?

Explain why the demand curve facing a firm under monopolistic competition is negatively sloped.

The market demand curve for a commodity and the total cost for a monopoly firm producing the commodity are given in the schedules below.

Quantity	0	1	2	3	4	5	6	7	8
Price	52	44	37	31	26	22	19	16	13

Quantity	0	1	2	3	4	5	6	7	8
Price	10	60	90	100	102	105	109	115	125

Use the information given to calculate the following:

(a) The MIR and MC schedules

(b) The quantities for which MIR and MC are equal

(c) The equilibrium quantity of output and the equilibrium price of the commodity

(d) The total revenue, total cost and total profit in the equilibrium

Comment on the shape of MR curve in case when TR curve is a

(a) Positively sloped straight line

(b) Horizontal straight line

A monopoly firm has a total fixed cost of Rs 100 and has the following demand schedule:

Quantity

Marginal

Revenue

100

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.

From the schedule provided below calculate the total revenue, demand curve and the price elasticity of demand:

Quantity

Marginal

Revenue

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?

What is meant by prices being rigid? How can oligopoly behavior lead to such an outcome?

Popular questions of class 12 Micro Economics

The market price of a good changes from Rs 5 to Rs 20. As a result, the quantity supplied by a firm increases by 15 units. The price elasticity of the firm’s supply curve is 0.5. Find the initial and final output levels of the firm.

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?

How does the imposition of a unit tax affect the supply curve of a firm?

What is the supply curve of a firm in the long run?

Distinguish between a centrally planned economy and a market economy.

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.

How will a change in the price of coffee affect the equilibrium price of tea? Explain the effect on equilibrium quantity also through a diagram.

Suppose your friend is indifferent to the bundles (5, 6) and (6, 6). Are the preferences of your friend monotonic?

What is the total product of input?

What is budget line?

Recently Viewed Questions of Class 12 Micro Economics

What are the total fixed cost, total variable cost and total cost of a firm? How are they related?

What is the ‘price line’?

What does the price elasticity of supply mean? How do we measure it?

What is a production possibility frontier?

Distinguish between microeconomics and macroeconomics.

What do you understand by normative economic analysis?

What do you understand by positive economic analysis?

What do you mean by the production possibilities of an economy?

What do the short-run marginal cost, average variable cost and short-run average cost curves look like?

How does the budget line change if the price of good 2 decreases by a rupee
but the price of good 1 and the consumer’s income remain unchanged?

Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

Read the question carefully and focus on the core concept being asked.
Reference examples and data from the chapter when answering questions about Non-competitive Markets.
Review previous year question papers to get an idea of how such questions may be framed in exams.
Practice answering questions within the time limit to improve your speed and accuracy.
Discuss your answers with your teachers or peers to get feedback and improve your understanding.

Latest Blog Posts

Stay updated with our latest educational content and study tips

The Secret to Smarter Learning — Building Strong Critical Thinking Skills

In today’s world of endless information , knowing how to think is more important than knowing what to think . From school projects to real – life decisions , critical thinking helps students question ideas , analyze facts and form logical conclusions . But what exactly does critical thinking mean ? Simply put , it’s […]

Study Smarter, Not Harder: Build Productive Habits That Stick

Every student dreams of better grades , stronger focus and more study time – but the real challenge isn’t starting, it’s staying consistent . Building productive study habits is not about studying all day , it’s about studying smart . In today’s fast – paced digital world, distractions are everywhere – from endless phone notifications […]

The Hidden Risks of Online Gaming for Children — Is your child safe while gaming online?

Online gaming has rapidly become one of the most popular pastimes among children. Whether it’s multiplayer mobile games , PC adventures or console challenges , kids are spending more time than ever in the virtual world . On the surface, gaming seems entertaining and even educational – improving hand- eye coordination , teamwork and problem […]

The Role of Parents in Digital Literacy – Guiding Kids for a Smarter Online Future

Kids today are surrounded by screens from the moment they wake up . Whether it’s smart classrooms, online lessons or video games with friends technology has quietly become a part of everything they do. It’s amazing how much they can learn, explore and create with just a tap or a click. But it also brings […]

View All Blog Posts