Price vs. Advertising: What Moves Sales More

ConversionSethuraman, R.; Tellis, G. J. · 1991Journal of Marketing Research

Topicsprice elasticity·advertising elasticity·elasticity ratio·meta-analysis·price discounting·pass-through·product life cycle

You have one budget and two levers. Do you fund a price promotion or a bigger advertising push to hit this quarter's sales number? The instinct is to protect advertising and treat discounting as a last resort. But for the short-term sales you are chasing, a 1% price cut moves the needle roughly 20 times harder than a 1% increase in advertising (an equal percentage move, not an equal budget), most of all on mature, everyday products. That does not settle the call. A move that sells more units can still make less money once you count thin margins, the part of a trade deal the retailer keeps, and the loyal buyers who grab the discount they would have paid full price for.

Short-term sales move far more on price than on advertising, but a bigger sales jump is not the same as a bigger profit.

Pooling many studies, a short-term price cut moves sales about 20 times more than an equal-percentage increase in advertising does, and the gap is even wider for mature products and everyday consumer goods. Before you shift budget toward discounting, know what that gap does and does not say: it measures how hard sales react, not which move makes more money.

Data chart

A price cut moves short-term sales far more than advertising does

A price cut moves short-term sales far more than advertising does, and most of all for everyday consumer goods, but this is reaction, not profit.

Action guide

Read the price-vs-advertising gap as reaction, not return.Short-term sales move far more on a price cut than on added advertising, but the study is explicit that this does not prove which lever is more profitable. Use it as a starting diagnostic, not a budget verdict.
For a mature, everyday product, treat price as the stronger short-term lever, then check that it pays.The reaction gap is largest here, roughly 25 to 1. Before you commit, confirm your margin, the retailer pass-through, and how many already-loyal buyers will take the discount they would have paid full price for.
Do not assume discounting wins for big-ticket durable goods.For durables the reaction gap is only about 5 to 1 in the raw comparison (and the product-type difference washes out once other factors are controlled), so neither lever clearly leads. Let your margin structure and non-price support, such as technical and sales help, drive the call.
Test whether a high-spending everyday brand is overspending on advertising at the margin.When advertising runs at 7 to 11 percent of sales, the weak short-term sales reaction to advertising is a reason to check that spend against what your margin justifies, while still crediting advertising's longer-term brand effect this study does not measure. Treat this as a tentative signal: the paper's optimal-spend comparison rests on assumed pass-through and loyal-buyer values it did not estimate.
Match the measurement window to the decision before you compare the levers.The measured gap is larger when sales are tracked monthly rather than yearly, and the authors leave the right window an open question. Test how sensitive your read is to the time window rather than trusting yearly figures alone.
When you measure your own price and advertising effects, include last period's sales, last period's advertising, and product quality.Leaving any of these out bends the price-vs-advertising comparison and distorts the tradeoff you are trying to judge.

Evidence

Across the studies pooled, a 1% price cut moves short-term sales about 20 times more than a 1% increase in advertising. That is equal percentage moves, not equal budgets: matching the profit of a price cut can take a far larger advertising increase.
That "20 times" says how much sales react to each lever, not which lever earns more profit.
The gap is widest for everyday consumer goods (about 25 times) and for mature products.
For big-ticket durable goods the gap is only about 5 times, so once you weigh the factors that affect profitability, neither lever clearly wins.
Whether a discount pays still turns on your margin, retailer pass-through (how much of the deal reaches shoppers), and how many loyal buyers take it.
These are short-term reactions only; a small advertising number does not mean advertising fails to build the brand over time.

Key takeaway

Sales react far more to price than to advertising, but a bigger reaction is not a bigger profit.

Source

Sethuraman, R., & Tellis, G. J. (1991). An analysis of the tradeoff between advertising and price discounting. Journal of Marketing Research, 28(2), 160–174. https://doi.org/10.1177/002224379102800204

Read the paper ↗

Evidence strength: Moderate (262 published short-term estimates from 16 studies, 1960-1988, predominantly everyday consumer goods, with both price and advertising effects estimated in the same model). Generalizes most confidently to mature, frequently purchased everyday consumer goods in U.S. and European markets; less so to big-ticket durable goods, early life cycle products, other geographies, and long-term or competitive-reaction settings.