B Evidence Grade B Graded accuracy verified by the review judge Safe to Cite Current

40%

40% -- share of users with positive social influence on purchases for Cyworld users (2026)

Name: Share Of Users With Positive Social Influence On Purchases Statistics
Creator: Lighthouse Intelligence
Published: 2026-09-24

2026 · n=208 · Harvard Business School

Social effect (social influence of friends on purchases) is positive for 40 percent of Cyworld users studied.

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Attribution: Harvard Business School View source

Lighthouse Research Team

Last verified: 2026-09-24 · How we verify data →

Source verified Evidence graded

Value

40%

Unit

Percentage

Data Vintage

2026

Entity

Cyworld users

Sample Size

208

Evidence Quality

Strong, reliable evidence

Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.

61/100 confidence

Single source - not yet corroborated

Score breakdown

Extraction

Source Trust

Citation Chain

Independence

Methodology

Freshness

Source

Harvard Business School Primary Tier B

http://reputationaldemocracy.wordpress.com/ ↗

Confidence: 53/100 Vintage: 2026 Channel: Common Crawl

Source Article

Social Media Strategy

Original Research

Harvard Business School · Original study ↗

Methodology

Harvard Business School study using 10 weeks of purchase and non-purchase data from 208 Cyworld users

Methodology documented

Segmentation

Industrymarketing

Cite this stat

Plain Text

Cyworld users: 40% share of users with positive social influence on purchases. Source: Harvard Business School (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/cyworld-social-effect-positive-users

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<blockquote cite="https://lighthousedata.io/data/cyworld-social-effect-positive-users" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>40%</strong> -- share of users with positive social influence on purchases for Cyworld users<br><small>Source: Harvard Business School (2026) · <a href="https://lighthousedata.io/data/cyworld-social-effect-positive-users" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>

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