WAEC Economics Past Questions & Answers - Page 82

406.

In a socialist economy, prices of commodities are determined by

A.

Forces of demand and supply

B.

Producers of the commodities

C.

The central planning authority

D.

Consumers who are sovereign

Correct answer is C

No explanation has been provided for this answer.

407.

Scale of preference is important for the following reasons except in

A.

Satisfying wants

B.

Making rational

C.

Making optinum allocation of resources

D.

Using scarce resources efficiently

Correct answer is A

No explanation has been provided for this answer.

408.

Human wants are insatiable because wants are

A.

Limited while means are scarce

B.

Unlimited and means are also unlimited

C.

Limited and means are also limited

D.

Unlimited while means are scarce

Correct answer is D

No explanation has been provided for this answer.

409.

If the marginal propensity to save is 0.8, calculate the multiplier?

A.

1.25

B.

5.00

C.

1.30

D.

2.25

Correct answer is B

The multiplier effect refers to the increase in final income arising from any new injection of spending. The size of the multiplier depends upon household's marginal decisions to spend, called the marginal propensity to consume (mpc), or to save, called the marginal propensity to save (mps).

The following general formula to calculate the multiplier uses marginal propensities, as follows:

    1      
1 - mpc

Hence, if consumers save 0.8 and spend 0.2 of every N1 of extra income, the multiplier will be:
   1      =        1      = 5
1 - 0.8         0.2

410.

Petroleum has the following positive contributions to the Nigerian economy except

A.

Generate employment

B.

Source of government revenue

C.

Development of mono economy

D.

Infrastructure development

Correct answer is C

Oil production brings about a billion investments in the country's economy as well as the development of related sectors of the economy and infrastructure. Besides, it supplies new jobs for Nigerian citizens and improvement of social and living standards in general.