Describe any five problems of distribution in Nigeria. 
 

(a) Define population census.
(b) State the implications of
(i) optimum population.
(ii) over- population. 
 

With the aid of a diagram, explain the super-normal profit of a monopolist. 
 

 What is money? Why do people prefer to hold money? 
 

Explain any five reasons why a joint stock company is preferable to a one-man business.