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Benjamin Franklin effect

Proposed psychological phenomenon

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  • 6 chapters

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Through Cognitive dissonance and Perception

Franklin's observation of effect

Benjamin Franklin, after whom the effect is named, quoted what he described as an "old maxim" in his autobiography: "He that has once done you a kindness will be more ready to do you another, than he whom you yourself have obliged."

Franklin explains how he dealt with the animosity of a rival legislator when he served as a member of the Pennsylvania Provincial Assembly in the 18th century:

Having heard that he had in his library a certain very scarce and curious book, I wrote a note to him, expressing my desire of perusing that book, and requesting he would do me the favour of lending it to me for a few days. He sent it immediately, and I return'd it in about a week with another note, expressing strongly my sense of the favour. When we next met in the House, he spoke to me (which he had never done before), and with great civility; and he ever after manifested a readiness to serve me on all occasions, so that we became great friends, and our friendship continued to his death.

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