Cialdini's seven principles of influence

The levers of persuasion described by Robert Cialdini in Influence: The Psychology of Persuasion. They are the social side of the biases above, and the reason many sales and propaganda techniques work.

Source: en.wikipedia.org · 7 items in the source's own order.

  1. 1Reciprocity
    Feeling obliged to return favours, gifts and concessions, even small or unrequested ones.
  2. 2Commitment and consistency
    Once we commit to a position, even a small one, we feel pressure to act consistently with it.
  3. 3Social proof
    Deciding what is correct or appropriate by looking at what others do, especially similar others, when we are uncertain.
  4. 4Authority → Authority bias
    Giving undue weight to the opinion or commands of an authority figure, in matters even outside their expertise.
  5. 5Liking → Liking bias
    Being more easily persuaded by, and more generous to, people we like, who are attractive, similar to us or flatter us.
  6. 6Scarcity → Scarcity error
    Valuing something more when it appears limited in supply or time.
  7. 7Unity
    We are more easily influenced by people we see as "one of us", sharing group identity, origin or values.

Other lists