Analytical precision for real commerce problems
L&Y Decision is a specialist consultancy that brings rigorous statistical methods to marketing decisions — built for e-commerce, DTC, and retail brands that want to know what's actually driving their results.
Why most analytics work fails — and what we do differently
Data without decisions is waste
Most analytics projects produce dashboards that nobody acts on. We design every engagement around the decisions you need to make — not the reports you could theoretically generate.
Correlation is not causation
Virtually every standard ad platform reports correlation as if it were cause. We use statistical methods — causal inference, A/B testing, holdout experiments — to measure what advertising actually causes.
Rigour should be accessible
Causal inference and marketing mix modeling have historically been reserved for brands with large data science teams. We bring the same methods to smaller, fast-moving commerce brands.
Outcomes over outputs
Our engagement isn't done when we deliver a model. It's done when you've reallocated budget, changed a decision, and seen the result. We measure ourselves by what changes after we've worked together.
Every engagement follows the same rigorous process
Diagnose
Every engagement begins with a structured audit of your data, measurement setup, and decision-making process. We find the gaps between the data you have and the decisions you need to make.
Model
We build models calibrated to your data and your questions — causal attribution, A/B test frameworks, ROI models. Rigorous statistics in service of practical commerce decisions.
Optimise
We translate model outputs into prioritised action: which channels to increase, which to cut, which assumptions to test next. We stay engaged until the decision is made and the result is measured.
We solve commerce problems with analytical precision
L&Y Decision combines statistical rigour with deep e-commerce, DTC, and retail practicality — built for brands that are serious about ROI but don't have enterprise-scale data teams.
- Director-level analytics leadership in commercial settings
- Proven revenue impact across e-commerce, DTC & retail
- Specialised in marketing attribution & causal modeling
- A/B testing frameworks that reduce risk & grow conversion
- Platform-agnostic — we work with your existing tools
- No lock-in: you own everything we build
Combining statistical rigour with e-commerce, DTC, and retail practicality — built for brands serious about marketing ROI.
Ready to prove your marketing ROI?
Book a free 30-minute consultation. No commitment, just 30 minutes of clarity on what's actually driving your results.
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