5೧7 SEMESTER B.A/B.Sc. DEGREE EXAMINATION, MARCH 2020
(CUCBCSS—UG)
Economics

ECO 6B 12—MATHEMATICAL ECONOMICS
Maximum : 80 Marks

Time : Three Hours

Part A
Answer all questions.
Each question carries ¥ mark.

If total revenue, TR = 100 - 100Q?, then what is the marginal revenue ?

(8) 100Q.
(D) 20०५०.

(A) 10095.

(೮) 200Q.
Given the Cobb- Douglas Production function Q = A K®* Lf, A refers to:
(A) Managerial efficiency. (B) Marginal productivity.

(C) Marginal profit. (D) Marginal revenue.
Lagrangian multiplier is a/an :

(A) OLS method.

(B) MLP method.

(C) Constraint optimisation method.

(D) Unconstraint optimisation method.
The marginal revenue curve in monopoly :

(A) Equals the demand curve.

(B) Is parallel with the demand curve.

(C) Lies below and converges with the demand curve.

(D) Lies below and diverges from the demand curve.

The output elasticity of labour measures :

(A) (4Q)/ (AL). (B) (%AQ)/(®AL).

Turn over

(©) (AL)/ (AQ). | (0) (®AL)/ (AL).