B
Evidence Grade B
Graded
under review
Safe to Cite
Current
20%
20% -- spending increase rate for Rewards program members after joining (2026)
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
20%
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Spiegel Research Center
Primary
Tier C
https://loyally.ai/blog/posts/stamps-points-cashback-restaurant-loyalty-programs ↗
Source Article
Stamps, points or cashback for restaurants — Loyally.ai
Most restaurant owners know they need a loyalty program. The harder question is which kind. Stamp cards, points programs and cashback each have genuine strengths, and each has a way of backfiring if you pick the wrong one for your business. This article breaks down how each model works in practice, …
Original Research
Spiegel Research Center
· Original study ↗
Methodology
Spiegel Research Center study cited via Clover
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Rewards program members after joining: 20% spending increase rate. Source: Spiegel Research Center (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/rewards-members-spending-increase-spiegel
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<blockquote cite="https://lighthousedata.io/data/rewards-members-spending-increase-spiegel" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>20%</strong> -- spending increase rate for Rewards program members after joining<br><small>Source: Spiegel Research Center (2026) · <a href="https://lighthousedata.io/data/rewards-members-spending-increase-spiegel" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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