---
id: "prereq-cohort-analysis"
type: "prereq"
source_timestamps: ["¶6", "§ What Executives Should Do"]
tags: ["analytics", "finance"]
related: ["action-ab-test-defaults", "claim-auto-cancel-yields-more-subs"]
reason: "Necessary to execute the recommended 12+ month A/B tests and understand why short-term retention metrics are deceptive."
sources: ["commercial"]
sourceVaultSlug: "hbr-seg-commercial"
originDay: 5
articleStem: "hbr-tier2-08-subscription-auto-renew"
sourceUrl: "https://hbr.org/2026/05/should-your-subscription-business-use-auto-renew"
sourceTitle: "Should Your Subscription Business Use Auto-Renew?"
---
# Cohort Analysis and LTV

**Prerequisite:** Working knowledge of **cohort analysis and Lifetime Value (LTV)** calculations.

The findings rely on tracking specific user groups over **20+ months** to detect the crossover point where auto-cancel outpaces auto-renew in total subscribers ([[claim-auto-cancel-yields-more-subs]]). Without cohort thinking, the early retention advantage of auto-renew looks like a win and the later reversal is invisible.

**Why it matters:** Necessary to execute the recommended **12+ month A/B tests** ([[action-ab-test-defaults]]) and to understand why short-term retention metrics are deceptive.