Price Elasticity of Demand

mechanism

Higher prices usually shrink the pool of willing buyers, but the crucial variable is how sharply demand changes at each price point.

Raise a product’s price and you do more than earn extra money per sale: you make some buyers disappear. The surprising part is that a price increase can therefore reduce, rather than increase, the money a product brings in.

E1

Price filters the buyer pool

Every buyer has a limit to what they are willing to pay. As price rises, it crosses more of those limits, leaving fewer willing buyers; as price falls, it brings more people within reach. The demand curve captures that direction, while price elasticity asks about the size of the response. A small increase may barely affect purchases at one price yet cause a sharp drop at another. Pricing therefore changes two moving parts at once: revenue per sale and the number of sales.

E1

Direction is not sensitivity

The rule tells you that willingness to buy generally falls as price rises; it does not tell you how many buyers will leave, where the sharp drop begins, or whether higher revenue per remaining sale offsets the lost volume. Those quantities must be estimated for the particular product and price range.

E1

Measure the slope before choosing the price

Test two or more nearby price points and compare both conversion and total revenue. Do not choose the price with the most buyers or the highest margin per sale automatically; use the observed change in demand to locate the stronger trade-off.

Episodes that teach this