I few years ago Emma Macdonald and I published this work showing the power of familiarity. When we did this in the late 1990s there wasn’t a great deal of interest in heuristics, snap judgements, and gut feeling. But today psychologists and behavioural economists are gaining a great deal of attention for their work showing how reluctant consumers are undertake a lot of cognitive effort when buying.
I’ve often said it is wrong to call much buying “consumer decision making”, it’s more buying (doing) than decision making (thinking).
Macdonald, Emma and Byron Sharp (2000) “Brand Awareness Effects on Consumer Decision Making for a Common, Repeat Purchase Product: A Replication” Journal of Business Research, 48 (Number 1, April), 5-15.