Economics questions and answers

Economics Questions and Answers

Economics questions and answers to help you prepare for JAMB, WAEC, NECO, Post UTME and job aptitude tests or interviews.

216.

A firm's average cost decreases in the long-run because of

A.

Increasing returns to scale

B.

Diminishing average returns

C.

Decreasing marginal returns

D.

Decreasing average fixed cost

Correct answer is A

A firm's average cost decreases in the long-run because of the law of increasing returns to scale. Law of increasing returns to scale shows that as output increases, the average cost fall. The law is applied to the long run analysis of production.

217.

A price floor is usually fixed

A.

At the equilibrium and causes no shortage

B.

Above the equilibrium and causes shortage

C.

Below the equilibrium and causes surpluses

D.

Above the equilibrium and causes surpluses

Correct answer is D

Price floor or minimum price legislation is when price is fixed above the equilibrium. When the government fix the price above the equilibrium, there will be excess supply over demand and there will be surplus.

218.

If the marginal utility of commodity is equal to its price, then

A.

The consumer is in equilibrium

B.

More of the commodity can be consumed

C.

Total utility is also equal to its price

D.

The market is not in equilibrium

Correct answer is A

A consumer is in equilibrium when the marginal utility of a commodity is equal to its price if only one commodity is consumed i.e MU x=Px where :
MU = Marginal utility
P= Price of the commodity
x = The commodity

219.

A supply curve parallel to the X-axis indicates

A.

Fairly elastic supply

B.

Infinitely elastic supply

C.

Fairly inelastic supply

D.

Perfectly inelastic supply

Correct answer is B

Infinitely elastic supply curve is parallel to the x-axis i.e at a fixed price, there is change in quantity supplied. es = ∞

220.

Palm oil and palm kernel are in

A.

Joint supply

B.

Competitive demand

C.

Competitive supply

D.

Complementary demand

Correct answer is A

Joint supply is the supply of two or more commodities from the same source or origin e.g palm oil and palm kernel are supply from the same palm tree.