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Lesson 4 of 13 · about 4 minutes

Price elasticity and value

What a price move does to units, sales and margin.

In one line

Price elasticity is the percentage change in volume for a 1% change in price. At −1.5, a 1% price rise loses about 1.5% of volume.

What it does

  1. Volume moves against price. If elasticity is above 1 in size, a rise loses more in volume than it gains in price, so sales value falls.
  2. Margin per unit rises with price while unit cost stays put. Whether gross profit rises depends on how many units go: at the elasticities most packaged goods face, the lost units eat most or all of the extra margin.
  3. Shoppers react more to a deal than to the same cut in the shelf price: published deal elasticities are several times regular ones. Habit stretches the response over a few quarters.

Business and brand

Impact on the businessP&L, cash, share price

  • A price rise lifts profit only when buyers barely react; at typical elasticities it gives up sales and share for little or no extra profit.
  • A price cut buys volume at a real cost in margin, and rivals may match it.
  • Analysts watch price and mix separately from volume in the results.

Impact on the brandMemory, loyalty, pricing power

  • A brand that holds price without losing many buyers has pricing power.
  • Repeated deep cuts teach shoppers the brand is cheap and to wait for deals.
  • Quality backs a premium: better products earn part of their price back.

Try it

Set the price, or run a deal

Move the shelf price, or switch to a deal, and see volume, sales value and gross profit against the plan you started from.

Lever
+5%
Measured over

Against holding price, Brightwater, first quarter

  • Volume▼ 8.4%
  • Sales value▼ 6.2%
  • Gross profit▼ 2.7%

Notice: A 5% price rise moves volume ▼ 8.4%, sales value ▼ 6.2% and gross profit ▼ 2.7% in the quarter. Volume falls faster than price rises, so the extra margin per unit doesn't cover the lost units and gross profit falls.

Runs Countermove's market engine: the reference soft-drinks market, three brands, rivals holding their plans so only your change moves the result.

Sources

  • Bijmolt, van Heerde & Pieters (2005), Journal of Marketing Research: 1,851 price elasticities, mean −2.62
  • Jedidi, Mela & Gupta (1999), Marketing Science: deals and long-run price sensitivity

Check itThree questions, instant answers

Question 1 of 3Elasticity is −2. You raise price 3%. Roughly what happens to volume?
Question 2 of 3Elasticity is −0.8. You raise price 5%. What happens to sales value?
Question 3 of 3Why can gross profit rise after a price increase even when sales value falls?