Retention Cohort Audit
Focused review of one retention question — such as first-year churn by signup channel — with a concise memo and three chart plates suitable for board packets.
View engagement →Est. 2016 · Busan · Ref. WP-001
Customer groups mapped with the patience of instrument makers
We prepare segmentation studies and cohort reports that board members can read without a glossary — annotated charts, written findings, and briefings delivered from our Suyeong-gu office.
Primary engagement
Cohort Segmentation Report
Our flagship deliverable traces how customer groups form and fade across twelve months of transaction history. You receive a bound report, annotated chart plates, and a ninety-minute briefing — not a login, not a subscription.
Sample retention curve · Month 0–6
Illustrative cohort decay for a Busan specialty retailer, Q1 acquisition cohort.
- Who it serves: Retail chains and membership clubs with twelve or more months of purchase records.
- Timeline: Four to six weeks from data intake to bound delivery.
- Starting rate: From ₩4,800,000 — scope confirmed at kickoff.
Further engagements
When a full report is more than you need
Shorter audits and half-day briefings cover single questions or help leadership interpret work already done elsewhere.
Executive Segmentation Briefing
Half-day session at your office or ours where we walk leadership through existing segmentation work, answer questions, and draft a prioritized research agenda.
View engagement →From recent clients
Evidence from the field
The cohort report for our Haeundae location showed that weekend-only shoppers were masking a sharper weekday decline. We adjusted staffing before summer — though I wish the draft had arrived two days earlier than promised.
Operations Director, coastal specialty retail group
Willowpath's segmentation memo gave our board a shared vocabulary for three customer rhythms we had been arguing about for months. The printed charts now sit in our quarterly packet.
CFO, Nordic-Korean membership club
Field notes
Recent writing from our analysts
Reading Cohort Decay Curves Without Overfitting
Why the steepest drop in month two often reflects onboarding gaps rather than product failure — and how to annotate curves so executives ask better questions.
Read article →
Segmenting Korean Retail Shoppers by Visit Rhythm
Department stores and specialty retailers in Busan and Seoul often share transaction data but define 'active' differently. We outline a rhythm-based segmentation that travel and holiday peaks do not distort.
Read article →