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Prior research found extremeness aversion effects to be common and robust. Nevertheless, most research neglected the spatial arrangement's influence on a consumer's choice and placed the compromise option of a choice set simultaneously in the spatial middle. Following these findings, five bachelor theses were conducted to investigate both aspects by analyzing numerical and spatial choice architectures – their data comprised three online surveys and three field experiments. This study aimed to compare their findings and analyze their data sets to search for overarching effects. Therefore, we hypothesized that there is either information-format compatibility or a general tendency towards the spatial middle of a choice set. To research this hypothesis, we brought the data sets into a comparable format, analyzed our findings, and conducted t-tests to test for statistical significance. Even though the study could not find overarching effects across the data, it supports the notion that a choice set's spatial arrangement, like the numerical one, can influence consumer behavior. Furthermore, it led to valuable insights for future research approaches concerning expanding extremeness aversion into a spatial dimension.
The objective of this paper is to build on well-established theories like extremeness aversion and extend those to a spatial context. Extremeness aversion occurs as disadvantages loom larger than advantages. Therefore decision-makers tend to avoid the extremes and choose the middle alternative, implying that a product that becomes the intermediate alternative becomes more attractive. However, a vast majority of literature seems to neglect spatial aspects. Therefore, we propose that positioning a product in the middle of a choice architecture will lead to a relative increase in likelihood of its being chosen. In a six-week field experiment in a retail market, we displayed three choice sets of different categories. Results are inconsistent with previous research, as there was no increase in choice for the product positioned in the middle of the choice architecture.
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.