An Investigation on the Compromise Effect: Does Familiarity Drive Preference for the Spatial Middle Option?

Prior research agrees that consumer choice is heavily influenced by the choice context. According to the compromise effect, the middle alternative in attribute space is preferred over more extreme options. However, the role of the spatial order of alternatives seems to be neglected by most compromise effect studies. Usually, alternatives are ordered by attributes, meaning that the compromise option is placed in the spatial middle of the choice set, despite the fact that research indicates a consumer preference for the spatial middle of a choice set. To investigate this issue, we hypothesized that an alternative would be chosen more frequently when positioned in the spatial middle of a choice set versus at the edge of a choice set. We assumed that this effect would be stronger when consumers are unfamiliar with a product category. Therefore, we expected to observe a negative correlation between decision-makers’ familiarity with a product category and their tendency to choose an alternative more frequently when positioned in the spatial middle of a choice. To find out, we conducted an online survey targeting 907 university students. The results support our hypothesis and the notion that the compromise effect might be partly driven by a preference for the spatial middle position of a choice set rather than only by a preference for the compromise option