The Gym: Paying Not to Go

• DellaVigna & Malmendier, “Paying Not to Go to the Gym,” American Economic Review 96(3), 2006, pp. 694–719 (members on flat monthly contracts averaged ~4.3 visits/month, >$17 per visit vs. a $10 ten-visit pass; monthly members slower to cancel than annual)
• Full working-paper PDF (UC Berkeley)

Loyalty Programs: The Forgotten Member

• Bond Brand Loyalty — The Loyalty Report 2023 (U.S. consumers belong to ~18 programs, active in about half)
• McKinsey — “Next in loyalty: Eight levers to turn customers into fans” (programs built around top-tier customers; active members spend ~10% more, redeemers ~25% more than inactive)

The Design Principle: Perpetual Intermediates

• Alan Cooper, About Face: The Essentials of Interaction Design — most users are “perpetual intermediates”; interfaces neglect the majority in the middle

The Office Ribbon: Jensen Harris

• Jensen Harris, “The Story of the Ribbon” (Microsoft Learn archive of his Office UI blog)
• Jensen Harris, “No Distaste for Paste (Why the UI, Part 7)” — command-usage data from the Customer Experience Improvement Program (Paste ~11%; top 5 commands ~32% of all usage in Word)
• “The Most Frequently Used Features in Microsoft Office” — summary of Harris’s Word 2003 command data
• Harvard Business Review, “Why Microsoft Had to Destroy Word” (2009) — customers kept requesting features Office already had, just buried; the Ribbon was built to surface them

Product Mentioned

• Website Reality Check — Johns & Taylor Services

The Research: Why Perfect Doesn’t Sell

• Northwestern University Medill Spiegel Research Center — How Online Reviews Influence Sales (purchase likelihood peaks at 4.0–4.7 stars; “five stars is too good to be true”)
• PowerReviews & Northwestern’s Spiegel Research Center — Five-Star Product Ratings Are “Too Good to Be True”
• PowerReviews — How Fake Reviews Destroy Consumer Trust (only 6% of shoppers say a perfect 5.0 is ideal)

The Trust Crisis

• Pangram Labs — Three Percent of Front-Page Amazon Reviews Are AI-Generated
• Bazaarvoice — Shopper Experience Index 2025 (authenticity as the top shopping frustration)

The Law

• FTC — Final Rule Banning Fake Reviews and Testimonials (August 2024)

The Fashion Nova Case

• FTC — Fashion Nova Will Pay $4.2 Million to Settle Allegations It Blocked Negative Reviews (January 2022)
• FTC — Finalizes Order with Fashion Nova Over Blocked Reviews (March 2022)
• FTC — Sends Refunds to Consumers Affected by Fashion Nova’s Deceptive Review Practices (January 2025)

The Amazon Origin Story

• Inc. — Jeff Bezos on why Amazon allowed negative reviews: “we make money when we help customers make purchase decisions” (quoting John Rossman’s Think Like Amazon)

Product Mentioned

• Experience Helpdesk

The Cost of Disengagement

• Gallup — The World’s $8.8 Trillion Workplace Problem (State of the Global Workplace)

Employee Experience Drives Customer Experience

• Glassdoor Research — The Link Between Glassdoor Reviews and Customer Satisfaction (Chamberlain & Zhao)
• Harvard Business Review — Engaged Employees Create Better Customer Experiences (April 2023)
• Harvard Business Review Analytic Services — The Impact of Employee Engagement on Customer Experience (report PDF)

Costco Case Study

• CFO Dive — Costco raises minimum hourly wage to $19.50
• Macrotrends — Costco (COST) Market Cap
• The Motley Fool — Jim Sinegal on Costco’s “Promote From Within” Strategy
• Yahoo Finance — Nine Out of Ten Costco Members Renew
• A-Z Quotes — James Sinegal: “When employees are happy, they are your very best ambassadors”

Products Mentioned

• Experience Helpdesk
• Website Reality Check