What is midpoint elasticity?

Midpoint elasticity, also known as arc elasticity, measures the responsiveness of quantity demanded or supplied to a change in price over a specified range, rather than at a single point. It calculates elasticity by using the average of the initial and final quantities and prices, providing a more accurate representation of elasticity over a range of values. The formula is (\text{Elasticity} = \frac{(Q_2 - Q_1) / ((Q_2 + Q_1)/2)}{(P_2 - P_1) / ((P_2 + P_1)/2)}), where (Q) represents quantity and (P) represents price. This method is particularly useful for analyzing larger changes in price and quantity.