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Abstract
The effects of assortment strategy on customer confusion have been discussed for singular channels in the past. However, multi-channel retailers also have to coordinate their assortment across channels. Recent literature has started to investigate which assortment integration strategy is most favourable for retailers, but theoretical and empirical research is still scarce. Until today, customer confusion has not been considered in this discussion. This article seeks to identify the impact of a retailer’s assortment integration on customer overload confusion, assortment perception and their consequences. In an experiment, we manipulate assortment integration internally (online and offline channel of the focal retailer; full and asymmetrical integration) and externally (online channel of the focal retailer and a competing online retailer; full, asymmetrical and no integration). The results indicate that both internal and external assortment integration have an impact on overload confusion and assortment perception. Asymmetrical internal integration induces less overload confusion in terms of its cognitive and affective components and leads to superior assortment perception. Full and asymmetrical external integration evoke less confusion with regard to its cognitive component. Eventually, overload has detrimental short- and long-term effects for the retailer. Multi-channel retailers should consider our results when implementing an assortment integration strategy.