BECC-131 · June 2023 · English
IGNOU BECC-131 June 2023 Previous Year Question Paper
PRINCIPLES OF MICROECONOMICS—I
Structured previous year question paper for BECC-131, June 2023 session.
Max marks: 100 · Questions: 11 · Sections: 3
Verified: 5 Aug 2026
B. A. (GENERAL) PROGRAMME (BAG)
Term-End Examination
June, 2023
BECC-131 : PRINCIPLES OF MICRO-
ECONOMICS—I
Time : 3 Hours Maximum Marks : 100
Note : Answer questions from each Section as per
instructions.
Section—A
Note : Answer any two questions from this Section
in about 500 words each. 2×20=40
Q1.(a) Why does a supply curve shift ? Give reasons.
(b) Find cross -price elasticity of demand. Are goods substitutes or complements ? Give reasons. Price of Car in ` Quality demanded of petrol in litres
Q4.(a) Explain consumer equilibrium in Multi - commodity case, with the help of a diagram. 10
(b) Using diagram, show that price effect is the sum of income effect and substitution effect in case of a normal commodity.
Q5.(a) What are Isoquants ? Draw isoquants in case of
(i) perfect substitutes and
(ii) perfect complementary factors of production. 10
(b) Why does a producer produce only between upper and lower ridge lines ? Explain.
Q6.(a) Explain the relationship between ATC, AVC and MC cost curves. 10
(b) “Long run average cost curve is also known as efficiency curve.” Explain with the help of a diagram. 10 [ 3 ]
Section—B
Note : Answer any four questions from this
Section. 4×12=48
Q7.Explain the concept of Production Possibility Curve (PPC) and highlight the problem of unemployment and inefficient use of factors of production. Can PPC be a straight line ?
Q8.Critically examine the cardinal utility analysis of demand.
Q9.What are the different types of elasticity of supply ? Prove that supply curve passing through the origin point is unitary elastic supply curve. 6+6=12
Q10.Explain the concept of increasing returns to scale with the help of isoquants. Give reasons for its emergence. 6+6=12
Q11.What is “expansion path” ? How does it look when both the factors of production are variable ? 4+8=12 [ 4 ]
Q12.Derive the long -run marginal cost curve from the short-run marginal cost curve.
Section—C
Q13.Distinguish between any three from this section. 3×4=12
(a) Cardinal vs. Ordinal utility approach
(b) Inductive vs. Deductive reasoning
(c) Sink cost vs. Fixed cost
(d) Income effect vs. Substitution effect
(e) Uniqueness of equilibrium and Multiple equilibria 2023 -131 2×20=40 [ 6 ]