In: Economics
1What is the relationship between the form of elasticity (e.g. unitary) and total revenue?
2Define each of the following: a) elastic demand b) unitary demand c) inelastic demand.
Let P be the price and Q be the quantity of a commodity.
The total revenue earned , TR=P*Q
Differentiating both sides wrt Q we get,
dTR/dQ= P+Q(dP/dQ)
dTR/dQ=P- (-){(Q/P)*(dP/dQ)}*P
dTR/dQ = P(1- 1/Elasticity )