The competitor cut their price. The email from the sales team arrives within minutes: “we need to match”. It is retail’s most common reflex — and, without doing the math first, one of the costliest. Because cutting price doesn’t cost just the discount: it costs margin on every sale you would have made anyway. The right question isn’t “do I match?”, it’s “how much more do I need to sell for matching to be worth it?”.
And context matters: Brazilians compare prices like no one else. Before deciding how to react, it pays to look at the size of the pressure.
36%
abandon the cart when they find the product cheaper on another site
Opinion Box, 2025
82%
of consumers research prices before buying
CNDL / SPC Brasil, 2025
#1
price is the factor that most influences the Brazilian purchase decision
Neogrid, 2024
60%
abandon the cart over shipping that costs more than expected
Opinion Box, 2025
Why matching costs more than it seems
When you cut your price to keep up with the competitor, the margin loss falls on every unit — including the ones you would sell with no discount at all. For the math to work, the extra volume generated by the lower price has to cover that lost margin. That is what we call the discount break-even.
Extra volume needed to break even on profit, by price cut (starting margin of 40%)
Fonte: Discount break-even calculation: uplift = starting margin ÷ new margin − 1
Elasticity decides whether the volume shows up
The extra volume only appears if the category is price-sensitive — what economists call price elasticity of demand. Most retail products sit in a range of 0 to 3.5; fashion and items with many substitutes are quite elastic (cut the price, sell more), while items with a strong brand, urgency, or no substitute are inelastic (cutting price just burns margin without bringing proportional volume).
Match, hold, or differentiate?
With the math and the elasticity on the table, the decision stops being a reflex and becomes a rule:
When MATCHING makes sense
Elastic category (fashion, electronics, commodity), comfortable margin, a product identical to the competitor’s, and a customer comparing side by side. Here price is the game — not keeping up loses direct sales.
When to HOLD / DIFFERENTIATE
Tight margin, a brand or curation the competitor doesn’t have, better shipping/delivery times, or a product with few substitutes. Here it pays to close the value gap (free shipping, bundle, warranty, content) instead of entering a price war.
The decision process in 4 steps
Step 1
Confirm it is the same product and condition
Same SKU, cash vs installments, with or without a coupon. An apparent gap is misleading.
Step 2
Calculate the discount break-even
How much extra volume would matching require? Is it plausible for your category?
Step 3
Weigh elasticity and margin
Elastic category + comfortable margin → match. Otherwise → differentiate.
Step 4
If you won’t match, close the value gap
Free shipping, delivery time, warranty, bundle — they convert even at a slightly higher price.
Referências e leitura complementar
- Opinion Box (2025). Cart abandonment in e-commerce: causes and numbers. Opinion Box link .
- CNDL; SPC Brasil (2025). Consumer behavior: price research before purchase. CNDL / SPC Brasil link .
- Neogrid (2024). Price is the factor that most influences the Brazilian consumer’s purchase decision. Neogrid link .
- Dealavo (2025). Price Elasticity of Demand in E-commerce. Dealavo link .
- RELEX Solutions (2025). Understanding Price Elasticity in Retail. RELEX Solutions link .
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