A perfectly inelastic demand curve has an elasticity of: MCQ with Answer and Explanation

A perfectly inelastic demand curve has an elasticity of:
A. zero
B. one
C. greater than one
D. infinity
Answer: Option A
Solution (By JKSSB Mock Tests)
With perfectly inelastic demand, quantity demanded does not change as price changes; elasticity is zero.

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Practice More Economy Set 1 Questions

Question #1
In the context of public economics, the 'Samuelson Condition' for optimal provision of pure public goods states that:
A. The sum of marginal rates of substitution equals the marginal rate of transformation
B. Only the median voter determines the quantity
C. Each individual's marginal rate of substitution equals the marginal cost
D. Private provision is always optimal

Correct Answer: Option A


Explanation:
The Samuelson condition requires that the sum of the marginal rates of substitution between the public good and a private good across all individuals equals the marginal rate of transformation (marginal cost).

This question belongs to: Economy GK Economy Set 1
Question #2
Which of the following is a feature of the 'Uncovered Interest Parity' puzzle or forward-premium puzzle?
A. Forward rates are perfect predictors of future spot rates
B. High-interest currencies tend to appreciate rather than depreciate as uncovered interest parity would predict
C. Interest differentials are always zero
D. High-interest currencies always depreciate as predicted

Correct Answer: Option B


Explanation:
Empirical evidence often shows that currencies with high interest rates tend to appreciate, contrary to the prediction of uncovered interest parity that they should depreciate; this is known as the forward-premium puzzle.

This question belongs to: Economy GK Economy Set 1
Question #3
The concept of 'Pre-distribution' in policy debates refers to:
A. Only post-tax outcomes
B. Only redistribution through taxes and transfers
C. Only monetary policy
D. Policies that shape the distribution of market incomes before taxes and transfers, such as education, minimum wages and competition policy

Correct Answer: Option D


Explanation:
Pre-distribution emphasises interventions that affect the underlying distribution of market incomes—through skills, bargaining power, market structure and institutions—rather than relying solely on subsequent fiscal redistribution.

This question belongs to: Economy GK Economy Set 1