1] Joint demand – Joint demand is also known as complementary demand. When more than one commodity is used to satisfy the same want these commodities are known as complements of each other. A change in demand of one commodities leads to a change in demand for the other commodities in the same proportion and the same direction. E.g. Car and petrol, ink and pen etc
2] Competitive demand – It is also known as cross demand. These goods are substitutes of each other. A change in demand of one commodity leads to a change in demand for the other in the same proportion and opposite direction. i.e. demand for one good is inversely related to the other. Eg tea or coffee, car or bike etc.
3] Composite demand – It is also known as aggregate demand. In this case the commodity demanded has more than one use.ie it has a composite demand. A change in demand for one composite will affect the supply of the commodity in its other uses and therefore its price will change. Eg electricity used for railways, industry domestic etc.( coal, steel, water)
4] Direct demand –It is also known as pure, conventional or autonomous demand. When a commodity yields a direct satisfaction to the consumer, it is said to have direct demand.All consumer goods have a direct demand.eg a cup of coffee.
5] Derived demand – It is also known as induced demand. When a commodity or a service is does not yields satisfaction to the consumer through some other commodity ie indirectly it is said to have a derived demand.eg demand for sugar, coffee powder is derived in the demand for a in a cup of coffee. (e.g. all factors of production )