B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
13.5%
13.5% -- revenue lift for direct mail acquisition + email retention strategy (2026)
Using direct mail for acquisition and email for retention lifted revenue by up to 13.5%.
- up to 13.5%
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
13.5%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Ariyh
Primary
Tier B
https://app.sciencesays.com/archive?ref=benjaminach.fr&page=17 ↗
Source Article
Science Says
Original Research
Ariyh
· Original study ↗
Methodology
Marketing strategy research summary (Ariyh/Science Says)
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
direct mail acquisition + email retention strategy: 13.5% revenue lift. Source: Ariyh (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/direct-mail-email-revenue-lift-13-5
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<blockquote cite="https://lighthousedata.io/data/direct-mail-email-revenue-lift-13-5" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>13.5%</strong> -- revenue lift for direct mail acquisition + email retention strategy<br><small>Source: Ariyh (2026) · <a href="https://lighthousedata.io/data/direct-mail-email-revenue-lift-13-5" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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