H·09
Habits & Behaviour
Bind Your Future Self
People who impose costly deadlines on themselves perform better than people who keep their options open.
- Evidence
- solid
- Topic
- Habits
- Things to do
- 3
- Read
- 1 min
solidHow strong is the evidence?
Good evidence behind it, but fewer people have checked it independently.
- Bryan, Karlan & Nelson, Annual Review of Economics, 2010
- Giné, Karlan & Zinman, AEJ: Applied, 2010 — smoking-cessation commitment contracts, Philippines RCT
- Thaler & Benartzi, Save More Tomorrow, 2004
Check it yourself: doi.org/10.1146/annurev.economics.102308.124324
A correction to this entry
This law used to cite Ariely & Wertenbroch (2002), which was retracted on 2 September 2026. The finding itself survives on independent field evidence, so the law stands and the source has been replaced — but you should know the change happened.
Why it works
Your present self knows your future self will rationalise. A commitment made now removes the future negotiation entirely.
What to do about it
- Put money, reputation or another person on the line: a deposit, a public date, a co-signer.
- Schedule the escalation in advance — the automatic increase in savings, the pre-booked next session.
- Make the escape route expensive, not impossible. Impossible commitments get abandoned wholesale.
Where people go wrong
Commitments with no enforcer. A promise to yourself, unwitnessed and uncosted, is a preference.
Read next
- The If-Then PlanA goal becomes an action only when it names a trigger: “When X happens, I will do Y.”proven
- Friction Beats WillpowerTwenty seconds of added effort kills a habit; twenty seconds removed creates one.proven
- Habits Live in Contexts, Not in YouAbout 43% of daily behaviour is repeated in the same context. Change the context and the habit has nothing to hold on to.proven
- Temptation BundlingChain the thing you should do to the thing you want to do, and let the want carry both.solid