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).
Marketing Science 