Scientists suggest that we get more satisfaction from eating our favourite foods repeatedly than from having a wide variety of options.
A new study, which will appear in the March 2006 issue of the Journal of Consumer Research, contradicts not only conventional food industry thinking about the need for choice, but also consumers belief in their desire for variety.
For example, the study shows that when it comes to choosing foods for others, we even more egregiously overestimate the desire for variety.
"People will choose more variety for others than for themselves, and this tendency is even larger when they have to justify their choices," said Incheol Choi and Youjae Yi from Seoul National University.
Their findings imply that food makers should concentrate on quality instead of quantity, and stop telling consumes that variety is the spice of life.
The subjects in the study were shown nine different snacks and asked to select a total of five snacks for their partner to receive at the end of the study. They could choose any combination, such as five of the same snack, five different snacks, or any other combination.
One group of subjects was asked to write down their reasons for choosing particular snacks, while the other group was not asked to justify their selections. Those held accountable for their choices selected a higher variety of snacks for their partners.
The authors believe that this tendency is due to two factors: a desire to conform to a "social norm advocating variety for others," and a tendency "to focus on the consumptions per se without considering other activities those others would engage in during the inter-consumption period."
In other words, subjects appear to forget that the person for whom they're choosing snacks won't eat them all at once. More likely, the person will have one or two now, do other activities, and then have another later.
Choi and Yi also show that consumers expect someone else's satisfaction after eating the same snack five days in a row to be lower than our own would be.
However, when the researchers had subjects list the daily activities their partner might do on the five days for which they were choosing snacks, this "de-focusing" task caused a significant reduction in the variety of snacks chosen.