Mental accounting
The cognitive tendency to categorize money into separate mental “buckets” (e.g., savings, vacation fund, fun money, found money) and treat each bucket differently — even though money is fungible.
Theory developed by Richard Thaler; central to his 2017 Nobel Memorial Prize in Economic Sciences.
Key idea
A rational agent treats $100 the same regardless of source. People don’t. A $100 tax refund feels spendable; $100 from a paycheck feels like savings; $100 of “casino winnings” gets gambled back. Each bucket has its own implicit rules for what it can be spent on and how easily.
Why it matters for monetization
Payment decoupling is mental accounting weaponized: by converting cash into virtual currencies, mobile games move the money out of the “real money” bucket and into a less-painful one. Once money is gems, the rules change — gems are for spending in the game, not for guarding.
Related
- Richard Thaler
- Payment decoupling — the applied version
- Endowment effect — adjacent Thaler/Kahneman concept