Big idea Quote by Nir Eyal
““we humans evolved the tendency to reciprocate kindness because it improved our species’ ability to survive. As it turns out, we invest in products and services for the same reasons we put effort into our relationships. The big idea behind the Investment Phase is to leverage the user’s understanding that the service will get better with use (and personal investment). Like a good friendship, the more effort people put in, the more both parties benefit.””
About This Quote
Source Book: Hooked: How to Build Habit-Forming Products, 2014
Human reciprocity evolved to support survival, and this same drive makes users invest more when they feel a service improves with their effort, similar to friendships.
In simple terms: People give more when they see mutual benefit and growth.
Key Takeaway
Design products that reward user effort with better experiences.
Themes
reciprocity
habit formation
user engagement
Mood
thoughtful
analytical
Type
theoretical
practical
When to use this quote
- product design
- marketing strategies
- customer loyalty programs
Key Concepts
behavioral economics
social psychology
Questions to Reflect On
- What genuine value can you offer for user effort?
- How do you avoid exploiting reciprocity?
A Different Perspective
Overemphasis on reciprocity can feel manipulative if not genuine.
![“Instead of asking ‘what problem should I solve?’ ask ‘what problem do I wish someone else would solve for me?’”[cxxxi]” quote by Nir Eyal](https://sms4smile.com/quotes/img-quotes/805/nir-eyal-1258_problem-solving_instead-of-asking-what-problem-should-i_78727.jpg)
