Speaking of Psychology Tip or skip? What drives our tipping behavior, with Michael Lynn, PhD
Apr 15, 2026
Michael Lynn, PhD, social psychologist and Cornell professor who has studied tipping for 30+ years. He discusses how digital payment prompts and social norms reshape tipping, why tipping varies by place and time, how biases like attractiveness and race influence tips, and the trade-offs of eliminating tipping. The conversation highlights changing norms and ongoing experiments around QR and tablet prompts.
AI Snips
Chapters
Books
Transcript
Episode notes
Social Norms Outweigh Service Quality
- Tipping is driven far more by social norms than by service quality.
- Bill size alone explains about 70% of tip differences, while customers' service ratings explain only ~4%.
Labor Laws Shape State Tipping Differences
- State-level tipping differences correlate with how servers are paid under labor laws.
- States that allow lower server pay see higher tipping percentages as customers try to compensate.
How Digital Prompts Escalate Tip Pressure
- Digital payment screens increase pressure to tip by framing options as one-touch social expectations.
- Screens hide visible cues (like a tip jar's contents) and require actively pressing No Tip, which feels worse than omission.
