Decision Science for E-Commerce, DTC & Retail

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.

Book Free ConsultationView Services
ROI by Channel
Causal attribution model · Q4 2024
LIVE
4.2x2.8x2.1x3.6x1.4xPaid SearchSocialEmailOrganicInfluencer
CAC
0%
↓ reduced
CVR
+0%
↑ uplift
Revenue
$0M+
↑ attributed
0%
CAC Reduction
$0M+
Annual Revenue Built
0%
Conversion Uplift
0+
Specialized Services
Why L&Y Decision

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.

Our Process

Three steps from broken data to confident decisions

Every engagement follows the same rigorous methodology — regardless of your industry, data maturity, or the service you choose.

01

Diagnose

We audit your data stack, attribution setup, and KPIs to surface exactly where measurement is broken — and quantify what it's costing you in misdirected budget.

02

Model

We build causal models that connect marketing actions to revenue outcomes, using statistical methods that go beyond correlation to isolate true impact.

03

Optimise

We deliver prioritised, evidence-backed recommendations and support you through budget reallocation — so every dollar goes where it actually works.

End-to-end decision science for modern commerce

From analytics audits to causal inference, every service is built around measurable outcomes.

01

Marketing Analytics Audit

A comprehensive review of your data stack, KPIs, and attribution gaps. We surface exactly where your measurement is broken and what it's costing you.

$3,000 – $8,000
02

Advertising ROI Modeling

Causal models that link ad spend directly to revenue and profit — not correlation, not last-click. Built for e-commerce, DTC, and retail teams who need to justify every dollar.

$5,000 – $15,000
03

Conversion Rate Optimization

Structured testing frameworks that eliminate guesswork. We design experiments with proper statistical power, monitor them correctly, and deliver conclusions you can act on with confidence.

$4,000 – $12,000
04

Multi-Touch Attribution

A custom multi-touch attribution model that accurately maps how each channel contributes to conversions — across the full customer journey, not just the last click.

$6,000 – $20,000
05

Marketing Dashboard

A custom dashboard that consolidates your store, ad platform, and analytics data into one clear view — so every decision starts from the same facts.

$2,500 – $7,000
06

Causal Inference for Ads

The most rigorous approach to ad measurement: geo-holdout experiments, synthetic controls, and Bayesian causal models that isolate exactly what your advertising is actually causing.

$8,000 – $25,000

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

0%

CAC Reduction

Helped an e-commerce brand reduce customer acquisition cost by isolating true ad performance drivers using causal inference.

E-Commerce Brand
$0M+

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.

DTC Brand
0%

Conversion Rate Uplift

Designed an A/B testing framework for a retail digital experience, achieving a statistically significant uplift in conversions.

Retail Digital Experience
FAQ

Common questions

If your question isn't here, email us at [email protected]

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
Decision

Combining statistical rigor with e-commerce, DTC, and retail practicality, built for brands serious about ROI.

[email protected]
Working with clients worldwide.
Currently accepting new clients

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 Consultation

No commitment. Just 30 minutes of clarity.