πŸ’Ž On brands admitting a flaw (to make all their other claims more believable)

Guinness and AMV publicised the slowness of the pour with “Good things come to those who wait”. The National Dairy Council alluded to the high calorific content of cream cakes with “Naughty, but Nice”. (Incidentally, that strapline was coined by Salman Rushdie while working at Ogilvy & Mather.)

Admitting weakness is a tangible demonstration of honesty and, therefore, makes other claims more believable. Further to that, the best straplines harness the trade-off effect. We know from bitter experience that we don’t get anything for free in life. By admitting a weakness, a brand credibly establishes a related positive attribute.

Guinness may take longer to pour but boy, it’s worth it. Avis might not have the most sales but it’s desperate to keep you happy.

Excerpt from: The Choice Factory: 25 behavioural biases that influence what we buy by Richard Shotton

πŸ’Ž On how admitting a weakness on a minor issue makes a brand’s other claims more believable (Listerine, L’Oreal, and Avis)

When asking ourselves about such a person’s trustworthiness, we should keep in mind a little tactic compliance practitioners often use to assure us of their sincerity: They will seem to argue to a degree against their own interest. Correctly done, this can be a subtly effective device for proving their honesty. Perhaps they will mention a small shortcoming in their position or product (“Oh, the disadvantages of Benson & Hedges”). Invariably, though, the drawback will be a secondary one that is easily overcome by a more significant advantages — “Listerine, the taste you hate three times a day”; “Avis: We’re number two, but we try harder”; “L’Oreal, a bit more expensive but worth it.” By establishing their basic truthfulness on minor issues, the compliance professionals who se this ploy can then be more believable when stressing the important aspects of their argument.

Excerpt from: Influence: The Psychology of Persuasion by Robert Cialdini

πŸ’Ž On giving the reader permission to believe

Despite universal cynicism towards salesmen in general and ads in particular, there’s a part of us that really wants to believe we’ll have more and better sex if we use a certain aftershave or hair conditioner. Unfortunately that part is patrolled by a beefy armed guard who can easily wrestle inanities like this to the ground. What our beefy armed guard needs is enough supporting logic to accept your premise and not look like an idiot. DDB’s advertising for Avis didn’t just say Avis tried harder; it said when you’re only number two you have to β€” or else.

Excerpt from: D&Ad Copy Book by D&AD