JAMB Economics Past Questions & Answers - Page 108

536.

A smaller industry that grows to cater for the need of the major industry is

A.

Subsidiary industry

B.

Constructive industry

C.

Manufacturing industry

D.

Infant industry

Correct answer is A

A subsidiary, subsidiary company or daughter company is a company that is owned or controlled by another company, which is called the parent company, parent, or holding company. The subsidiary can be a company, corporation, or limited liability company. 

537.

How can a firm benefit from external economies?

A.

Increasing its expenditure on advertising

B.

Increasing the workforce

C.

Locating in an area in which the industry is already established

D.

Merging with another domestic firm engaged in the same industry

Correct answer is C

External economies is the benefit which a firm derives from the centration of similar firms which leads to an increase in output and a reduction in the unit cost

The firm will benefit from the area where the industry islocated.d

538.

In a situation where Mux represent the marginal utility of product X while Px represent the price respectively. Utility can be maximized when

A.

MUX = MUA

B.

MUX = PX

C.

PX = X

D.

PX = PY

Correct answer is B

A consumer utility is maximized when the marginal utility per amount spent on a product is equal to the price.

539.

When elasticity is zero, demand curve is

A.

Perfectly elastic

B.

Perfectly inelastic

C.

Down-ward sloping

D.

Upward sloping

Correct answer is B

Perfectly inelastic is when a change in price has an no effect on quantity demanded. The coefficient is zero.

540.

What does the accelerator principles state?

A.

Consumption is a function of the rate of change of income

B.

Income is a function of the rate of change of investment

C.

Investment is a function of the rate of change of income

D.

Investment is a function of the rate of interest

Correct answer is C

Investment depends on the rate of change in income and that a change in income will cause a greater proportionate change in investment.