
— The Brand Equity Builder · Omnichannel, eCommerce & New-Age CPG
Long-term vs. short-term brand advertising returns across 1,000+ brands
Dr. Koen Pauwels, Northeastern UniversityDays before brand effects begin surfacing in measurable revenue data
LiftLab webinar, February 2026Years of peer-reviewed marketing science underlying LiftLab’s LT multiplier framework
Dr. Koen Pauwels, Northeastern UniversityIf your MMM does not account for long-term brand effects, each optimization cycle can gradually erode the brand equity that supports organic growth, lowers CAC, and maintains price elasticity, even as dashboards indicate positive results.
Your Model Rewards Short-Term Efficiency. Your Brand Pays the Price.
If your MMM does not account for long-term brand effects, each optimization cycle can gradually erode the brand equity that supports organic growth, lowers CAC, and maintains price elasticity, even as dashboards indicate positive results.
01 — MODEL BIAS
Standard MMMs focus on outcomes that are immediately attributable, such as short-term conversions and clicks. However, brand advertising delivers compounding value over time, resulting in lower future CAC, higher LTV, and increased organic demand. Without calibrating the long-term multiplier—the ratio of total to short-term advertising value—the model consistently undervalues brand campaigns and overlooks the 2 to 2.5 times long-term uplift observed across more than 1,000 brands.
02 — MISATTRIBUTION
Attribution systems assign credit to the channel present at the time of conversion, while brand advertising that generated purchase intent earlier receives none. This inflates performance ROAS and makes brand investments appear inefficient, often leading to reduced brand spend. CAC then rises 6 to 18 months later, but the delay prevents clear attribution, and models focused only on short-term effects cannot reveal this connection.
03 — LANGUAGE GAP
Metrics such as awareness, consideration, NPS, and share of voice are valid leading indicators, but they operate on a different timescale than the CFO's reporting cycle. Unless brand equity is quantified in terms of reduced future CAC and higher LTV, with a net present value that Finance can audit, brand spend is typically the first to be reduced during a downturn.
04 — DEMAND DECAY
Performance channels convert demand generated by brand investment. When brand spending decreases, performance efficiency declines over time, but the lag often obscures the connection until negative effects are evident. Conversion rates decrease, organic traffic declines, and CAC rises, yet the model fails to capture these changes.
LiftLab’s Agile MMM extends beyond short-term ROAS by calibrating long-term advertising multipliers. These research-backed ratios, tailored to your brand, category, and channel mix, are integrated into scenario planning to ensure brand and performance investments are evaluated on equal, evidence-based terms.
LiftLab’s two-stage Agile MMM separates ad-auction dynamics (CPM/CPC costs) from true consumer response, producing accurate short-term iROAS and mROAS curves at the channel, tactic, and campaign level — without any platform self-reporting bias distorting the baseline.
Explore Agile MMM →LiftLab leverages over 30 years of peer-reviewed marketing science, based on Dr. Koen Pauwels’ research with more than 1,000 brands, to determine your brand’s specific long-term to short-term advertising value ratio. This LT:ST ratio is influenced by brand lifecycle, product category, funnel position, and channel mix.
See Trust Engine Calibration →Long-term advertising multipliers, calibrated to your brand lifecycle, product category, funnel position, and market context, translate compounding brand value into a net present value that Finance can review, challenge, and approve. This approach is supported by over 30 years of peer-reviewed marketing science from Dr. Koen Pauwels at Northeastern University.
Watch the Dr. Pauwels Webinar →Budget scenarios use total advertising value, calculated by scaling short-term ROAS with the LT:ST multiplier, as the objective function. This allows brand and performance spending to be evaluated consistently. As a result, scenarios often recommend allocating more budget to top-of-funnel investments, since the compounding multiplier clarifies the financial case for brand. Brand investment then achieves the same level of defensibility as your best-performing performance channel.
See Scenario Planner →LiftLab's brand measurement integrates with all platform capabilities. Brand does not operate separately from performance, and your measurement system should reflect this connection.
Your MMM reports a 0.9x ROAS on brand, while the actual figure is 2.1x. LiftLab calibrates the long-term-to-short-term advertising value ratio, based on over 30 years of Dr. Koen Pauwels' research with more than 1,000 brands, and integrates it into Scenario Planning. This ensures brand investment is evaluated on equal financial terms with all performance channels.
Explore Long-Term Brand Value Measurement →
Brand and performance are modeled together, making their interdependence clear. When upper-funnel investment decreases, lower-funnel efficiency declines as well. LiftLab demonstrates this causal link before the impact appears in CAC, allowing proactive action.
Explore Full-Funnel Budget Planning →
"What happens to blended CAC in 12 months if brand spend is cut by 30%?" LiftLab provides P&L-linked outcome ranges to answer this, offering the Head of Branding a powerful budget defense tool that most measurement systems cannot deliver.
Explore Scenario Planning & Forecasting →
Demonstrate brand lift causally using geo holdouts rather than survey correlations. Each test informs the AMM through the Trust Engine™, continuously refining brand response curves and calibrating LT multipliers with real-world causal data.
Explore Incrementality & Calibration →
Identify where performance channels are saturating to make the need for brand investment clear. Declining performance efficiency often indicates a depletion of brand demand. Only upper-funnel investment can address this, and LiftLab highlights these trends before budget adjustments occur.
FiExplore Diminishing Returns →
A weekly modeling cadence ensures the brand’s contribution to performance efficiency is visible within the quarter. Establish guardrails to protect brand investment before optimization, so brand spend is not the first item reallocated if monthly targets are missed.
Explore Real-Time Budget Optimization →
DIAGNOSTIC
Six warning signals that your measurement framework is systematically undervaluing brand — and the readiness checklist to fix it with LiftLab.