The above advertisement was produced by the supermarket
chain ALDI in 2011. It is part of a long-running campaign which consists of
numerous advertisements, each one illustrating the difference in price between a
branded item (in this case PG tips) and ALDI’s unbranded alternative.
In addition to the effective use of humour in this advert, the
tactic of establishing a favourable comparison point is utilised (Pratkanis,
2007): in this case the difference in price between the two varieties of tea. By
administering questionnaires to 2,967 adults, Glanz, Basil, Maibach, Goldberg
and Snyder found that, after taste, price is the biggest factor in deciding
which foods to buy. Studies such as this support the effectiveness of this
advert.
The persuasive tactic of fait
accompli (Pratkanis, 2007) could also be applied to this advert. The advert
tag line “Like brands, only cheaper,” coupled with the prices shown in the
advert, encourage a notion of “why choose the more expensive brand, if they’re
exactly the same?” The whole advert suggests that there is no difference
between the products, other than price. Previous studies have found that
presenting an argument which seemingly has only one solution, as ALDI have done
in this advert, is a very persuasive method. For example, in one study (Brehm,
1959) children were given a food item which they disliked and told that they
would definitely have to eat it often in the future, follow up tests showed
that they convinced themselves that the food wasn’t too bad. However, if the
children had not been told they would have to eat it often in future, their
dislike remained the same. The fait accompli theory suggests that this was the
case because changing their opinion was the only
obvious solution for children in the first group.
References
Brehm, J. W. (1959). Increasing cognitive dissonance by a
fait accompli. The Journal of Abnormal
and Social Psychology, 58(3), 379-382.
Glanz, K. Basil, M. Maibach, E. Goldberg, J., & Snyder,
D. (1998). Why Americans eat what they do: taste, nutrition, cost, convenience,
and weight control concerns as influences on food consumption. Journal of the American Dietetic
Association, 98, 1118-1126.
Pratkanis (2007). The science of social influence: Advances
and future progress. Psychology Press.
Brilliant and nice description of the Brehm add.
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