CBSE Class 12 Economics Producer Behaviour And Supply VBQs

CBSE Class 12 Economics Producer Behaviour And Supply VBQs read and download in pdf. Value Based Questions come in exams for Economics in Standard 12 and are easy to learn and helpful in scoring good marks. You can refer to more chapter wise VBQs for Class 12 Economics and also get latest topic wise very useful study material as per latest 2021 NCERT book for Class 12 Economics and all other subjects for free on Studiestoday designed as per latest Grade 12 CBSE, NCERT and KVS syllabus and examination pattern

CBSE Class 12 Value Based Questions - Economics - Producer Behaviour & Supply Based on CBSE and NCERT guidelines. Value based questions are now being given in exams to promote morals and values in students, Students should read and understand the following VBQs to get better understanding and score good marks in exams

Value based questions-Micro Economics- Unit III

Producer behaviour & Supply

1) Identify and define the stages underlying the schedule given below. Also, identify the value based on the behaviour of marginal product: (4)

 CBSE Class 12 Economics Producer Behaviour And Supply VBQs

The underlying law is the Law of Diminishing Returns. As more and more units of variable input are combined with fixed quantities of fixed inputs beyond a certain point the marginal product falls with further employment of it.
Stage 1: MP increases and is the stage of increasing returns to a factor
Stage 2: It is stage of diminishing returns to a factor. In this stage MP decreases i.e. MP falls but remains positive and MP falls and becomes negative.
Analysis-> whatever is the industry diminishing returns will set in sooner or later and all economies face the same.

VALUE: Analytical Thinking

2. In the second stage of the operation of law of variable proportion both TP and AP increase. State true or false and identify the value and the significance of this stage. (3)

Answer: False, in the ii stage TP increases at a diminishing rate, but AP increases till it equals MP then it falls.

VALUE: Efficient utilisation of resources.
3.Why is short run MC curve ‘U” shaped? How does it affect the behaviour of TVC? Also identify the value. (3)


i) Due to the operation of the Law of Variable Proportions.

ii) When MC decreases, TVC increases at a diminishing rate and when MC increases, TVC increases at an increasing rate

VALUE: Analytical thinking.

4.The difference between AC and AVC decreases with the increase in the output. Explain why and state the value. (4)

Answer: Due to the presence of AFC which is not only ever diminishing but never become zero as AFC= TFC/ Q.

VALUE: Analytical thinking.

5.With the increase in the provision of telephonic services by the private sector the services provided by the Government sector has come down.(1)
i) What is the nature of relationship that exists between these services? Identify the value.

Answer:i) These services are substitute to each other

Value: consumer awareness.

6. With the increase in the use of mobile phones, the use of landlines has come down.(1)

i) What is the nature of relationship exists between these services? Identify the value.


i) These services are substitute to each other

ii) Value: consumer awareness/environmental degradation

7. With the increase in the use of mobile phones, the use of landlines particularly provided by the government sector has come down” (3)

i) How does this change affect revenue of the government and why?

ii) Highlight the value.

i) As the supply of quality services by the government decreases revenue also fall as we can carry mobile anywhere and it is cost efficient and convenient.

ii) Value: Empathy.

8.How can a firm under perfect competition earn only normal profit in the long run, when a monopolist can earn abnormal profit both in the short run and long run as the condition of producer’s equilibrium(MR=MC) is the same for both the markets.
Highlight the value which is emphasised and affected.(3)

Answer: Under PC there are large number of buyers and sellers, selling homogeneous products and free entry and exit whereas under monopoly he is the only seller, restricted entry and no close substitutes.

Value : care & concern/consumer exploitation affects welfare

9. Is MR=MC a necessary condition for a firm to be in equilibrium?(1) Identify the value.

Answer: Yes necessary, but not sufficient because MC must be rising.

Value: Critical thinking.

10.How does the shortage of LPG affect its equilibrium price and quantity? Identify the value.(3) 

Answer: Supply decreases. Now at a given price less is supplied which increases the price and decreases the quantity(leftward shift)

Value: Social Responsibility/conservation of energy. (As DD is more than the SS households must economies the usage of resources like LPG, ELECTRICITY and other ENERGY resources. )

11.Due to enormous increase in the price of land , the farmers prefer to sell the land to the real estate promoters instead of taking chances in the agricultural earning. Is it a healthy trend for a country like india?

Ans: It is not an encouraging practice, though, the farmers are benefitted temporarily. It will lead to severe shortage of food grains and import from other countries. The Govt. has to amend strict legislation to stop the conversion of agri .lands for profit sake.

Value: social responsibility.


Important Questions for NCERT Class 12 Economics Producer Behaviour And Supply

1. What is meant by production?
Ans :- Transformation of Input into Output.
2. What will be MP when TP is maximum?
Ans :- MP will be zero.
3. Define market period, Short run & Long run.
Ans :- Refer time period.
4. When there are diminishing returns to a factor, total product always decreases.
Ans :- False. When there is diminishing returns to a factor, TPP increases at a decreasing rate.
5. TPP increases only when MPP increases.
Ans :- False. TPP also increases when MPP decreases but remains positive.
6. Increase in TPP always indicates that there are increasing returns to a factor.
Ans :- False. TPP increases even when there are diminishing returns to a factor.
7. When there are diminishing returns to a factor marginal and total products always fall.
Ans: - False. Only MPP falls, not TPP. In case of diminishing returns to a factor, TPP increase at diminishing rate.
8. Calculate MP for the following.
Ans :- MP: 0 5 8 10 5 0 -4
9. Can MR be negative or zero.
Ans:- Yes, MR can be zero or negative.
10. If all units are sold at same price how will it affect AR and MR?
Ans:- AR and MR will be equal at levels of output.
11. What is price line?
Ans:- Price line is the same as AR line and is horizontal to X-axis in perfect competition.
12. Can TR be a horizontal Straight line?
Ans:- Yes, when MR is zero.
13.What happens to TR when a) MR is increasing, b) decreasing but remains positive and c) MR is negative?
Ans:- a) TR increases at an increasing rate.
b) TR increases at a diminishing rate.
c) TR decreases.
14. Why AR is more elastic in monopolistic competition than monopoly?
Ans:- Monopolistic competition market has close substitutes. Monopoly market does not have close substitutes.
15. Why TR is 45 0 angle in perfect competition market?
Ans:- In perfect competition market the goods are sold at the same price so AR= MR and the TR increases at a constant rate.
16. Can there be Break- even point with AR = AC
Ans:- Yes there can be breakeven point with AR=AC.



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