Prove Marketing ROI WithDecision Science
We help e-commerce brands, DTC companies, and retail businesses replace guesswork with data, so every marketing dollar is justified.
Most experts sell creative.
We sell decision science.
If you're serious about proving marketing ROI, L&Y Decision is your partner.
Statistical Validation
Rigorous testing ensures your ad campaigns produce real, statistically significant results, not noise.
Causal Inference
We measure true ROI, not correlation. Causal models isolate what's actually driving your marketing results.
A/B Testing Frameworks
Structured testing protocols that reduce risk and generate statistically reliable, actionable insights.
Attribution Models
Multi-touch attribution that reveals true revenue drivers across every channel and customer touchpoint.
End-to-end decision science for modern commerce
From analytics audits to causal inference, every service is built around measurable outcomes.
Marketing Analytics Audit
Full review of your data stack, KPIs, and attribution gaps for e-commerce, DTC, or retail.
Advertising ROI Modeling
Causal models linking ad spend to revenue to profit for e-commerce, DTC, and retail channels.
Conversion Rate Optimization
A/B test design, funnel analysis, and uplift measurement for online stores and retail digital.
Multi-Touch Attribution
Attribution model for accurate campaign ROI across e-commerce, DTC, and retail touchpoints.
Marketing Dashboard
Custom Google Sheets or BI dashboard connecting store, ad platform, and retail POS data.
Causal Inference for Ads
Measure true ad impact, not correlation, on e-commerce, DTC, and retail sales.
Built for serious
commerce brands
We work with small and medium businesses that are ready to take marketing decisions seriously.
E-Commerce
$500K - $50M revenue, scaling on Facebook & Google
DTC
Direct-to-consumer brands proving ROI across channels
Retail
Online and in-store revenue, measured together
Measurable outcomes,
not vanity metrics
CAC Reduction
Helped an e-commerce brand reduce customer acquisition cost by isolating true ad performance drivers using causal inference.
Annual Revenue Attributed
Built a multi-touch attribution model for a DTC brand that directly attributed over two million dollars in annual revenue to specific channels.
Conversion Rate Uplift
Designed an A/B testing framework for a retail digital experience, achieving a statistically significant uplift in conversions.
We solve commerce problems with analytical precision
L&Y Decision brings rigorous analytical methods to real commerce problems. We cut through the noise to show you exactly what's driving revenue, and where to invest for maximum return.
- Director-level analytics leadership in commercial settings
- Proven revenue impact across e-commerce, DTC & retail
- Specialized in marketing attribution & causal modeling
- A/B testing frameworks that reduce risk & grow conversion
Combining statistical rigor with e-commerce, DTC, and retail practicality, built for brands serious about 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.
Book Free ConsultationNo commitment. Just 30 minutes of clarity.