B
Evidence Grade B
Use with Hedging
Dated
4x
4x — marketing ratio for sustained lead nurturing email series (2023)
Source:
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Curated by Aaron Agius
· Founder, Louder Online
Last verified:
·
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Source verified
Evidence graded
Value
4x
Unit
Ratio
Data Vintage
2023
Entity
Study Type
Case_study
Trend
Stable
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Score breakdown
Extraction
95
Source Trust
1
Citation Chain
90
Independence
70
Methodology
50
Freshness
40
Sources (5)
Kantar
Primary
Tier A
https://www.kantar.com/inspiration ↗
Also cited by
Whitelabel Loyalty
https://whitelabel-loyalty.com/blog/loyalty/incredible-customer-loyalty-statisti…
2026-02-16
2026-03-09
NYU Stern Center for Business & Human Rights
https://www.fiercehealthcare.com/finance/nyu-stern-report-private-equitys-impact…
2026-04-02
Original Research
Invesp
· Original study ↗
Segmentation
RoleDemand Gen
Channelemail
Cite this stat
Plain Text
sustained lead nurturing email series: 4x marketing ratio. Source: Kantar (2023). Via Lighthouse Research Data — https://lighthousedata.io/data/lead-nurturing-email-response-rate-2023
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<blockquote cite="https://lighthousedata.io/data/lead-nurturing-email-response-rate-2023" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>4x</strong> — marketing ratio for sustained lead nurturing email series<br><small>Source: Kantar (2023) · <a href="https://lighthousedata.io/data/lead-nurturing-email-response-rate-2023" target="_blank" rel="noopener">Lighthouse Data</a></small></blockquote>
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