If two commodities are good substitutes for one another, e.g butter and margarine,an increase in the demand for one will reduce the demand for the other. This type of demand is called

AuduGambo

8 years ago

That is the correct answer. it is said to be competitive demand when the price of one commodity is higher than the complementary one. example, Omo and clean, if the price of one is greater dan d other one, you will go for the one that has a lesser price.