short non-fiction · money
A pound can feel different after it receives a label
A short idea drawn from Misbehaving: The Making of Behavioral Economics by Richard H. Thaler.
Classical arithmetic treats two equal sums as interchangeable. People often do not. Richard Thaler's “mental accounting” describes the budgets we build in our heads: a refund may feel spendable, rent money protected, a windfall separate from wages. Labels make a sprawling financial life easier to manage, but they can also hide the fact that all accounts share one balance sheet.
The mechanism is not sheer irrationality. Categories can create useful restraint and make plans easier to follow. Trouble appears when the label blocks comparison—for example, preserving one pot while expensive debt grows elsewhere. The same unit of currency can acquire several emotional job descriptions without changing its arithmetic value.
Based on the work of
Richard H. Thaler
· 2015
Why this bookA participant's history of the experiments that made economics take ordinary irrationality seriously.
Read the first pagesWhat to keep in view
Mental accounts can be useful commitment devices; the framework does not make every earmarked budget a mistake.