How We Quantified a 60% Erosion in Base Demand the Retailer Missed
How we revealed the hidden, cumulative damage of cutting media spend and reframed the real risk of going dark.
The Story
When businesses face pressure to cut costs, media budgets are often the first target. The logic seems sound: pull back spend, sales dip slightly, then recover once investment returns. The impact feels manageable because it’s immediate impact that gets measured and in the short term, the numbers often seem to confirm the assumption.
But that’s exactly what makes media absence so dangerous. The damage doesn’t show up right away. It accumulates quietly in the base, eroding the demand that media has been building over months and years. By the time the decline becomes visible, it’s no longer a short-term fluctuation, it’s now structural.
This retailer had been operating under the assumption that reduced media spend would have a limited, reversible impact on sales. We set out to test that assumption rigorously, and what the model revealed fundamentally changed how they thought about media investment.
Our Impact
25% Decline in Sales Revealed in the Mid-term
Following sustained media reduction
60% Erosion in Base Demand Revealed in the Long-term
Led by continued media absence
How We Solved This Large Retailer’s Problem
Problem
The business assumed that pulling back on media spend would produce a contained, immediate, and recoverable impact on sales. This led to a systematic underestimation of media’s role in sustaining base demand over time and left the company exposed to a form of erosion that doesn’t announce itself until significant damage has already been done.
Solution
We built an MMM framework to fully decompose total sales into their underlying drivers: base demand, media, promotions, and external factors. By analyzing media latency effects over time, we were able to isolate exactly how sustained reductions in media investment flow through to base sales, separating short-term noise from the deeper, cumulative signal that standard reporting tends to miss.
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