All claims

People are 4x more likely to buy when referred by a friend (Nielsen)

Unsourced Confidence: high

No primary data found; the trail ends in a roundup, a disowned quote or a circular citation.

Commonly cited as
"Customers are 4x more likely to buy when referred by a friend" — Nielsen
True origin
None. The Nielsen release usually cited does not contain it — Nielsen Global Online Consumer Survey press release (July 2009)
Type
Stat check: A widely repeated statistic traced back to its origin.
Year
2009 (cited source)
Data as of
2009 (cited source)
Last checked
What the source says
nine in every ten Internet consumers worldwide (90 percent) trust recommendations from people they know
Method & sample
The cited Nielsen release is an online survey of 25,000+ internet consumers in 50 countries about trust in ad formats; it reports trust, not purchase likelihood, and has no '4x'.
Drift between quote and source
  • Attribution: a trust finding rewritten as a purchase multiplier credited to Nielsen
Interest
n/a

Safe rephrasing

Don't cite '4x'. Nielsen's 2009 global survey found 90% trust recommendations from people they know.

Sources we opened

Machine-readable: /api/claims/4x-more-likely-to-buy-when-referred-nielsen.json · Last checked 2026-10-16

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