Ben Franklin Effect
Doing someone a favor makes you like them more — not the reverse.
Origin & History
Benjamin Franklin described the underlying dynamic in his autobiography, noting that asking a political rival to lend him a book converted the rival into a friend. Franklin wrote: 'He that has once done you a kindness will be more ready to do you another, than he whom you yourself have obliged.' Psychologists Jon Jecker and David Landy confirmed the effect experimentally in 1969, showing that participants who were asked to return money by the experimenter liked the experimenter more than those who were not asked.
Real-World Examples
Franklin asked a rival legislator to lend him a rare book. The rival obliged. From that point on, the rival treated Franklin with warmth he had never previously shown — and they eventually became close allies.
Participants who were asked (by an experimenter) to return money they had won in an experiment liked the experimenter more than those who weren't asked — even though being asked was an imposition.
Employees who ask colleagues for help on small tasks consistently build stronger relationships with those colleagues than those who try to avoid imposing. The act of helping creates investment in the relationship.
Why It Matters
The Ben Franklin Effect operates through cognitive dissonance: when someone does you a favor, their mind rationalizes it by concluding they must like you — otherwise, why would they have helped? This is the opposite of the intuitive reciprocity model, where doing someone a favor should make them like you more. In practice: if you want to build a relationship, don't do all the giving — ask. Small, appropriate requests create investment in the relationship from the other side.
Related Laws
Can You Spot Ben Franklin Effect in the Wild?
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Play the Game — Free →Frequently Asked Questions
The finding that doing someone a favor makes you like them more — because your brain rationalizes the helping behavior by concluding you must like them.
Cognitive dissonance: when someone helps you, they reason they must like you (otherwise why help?). The act of helping creates positive feeling toward the recipient.
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