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This study aims to investigate the effects of two visual design principles, repetition and compositional lines, in a food image on purchase intention in the context of a mobile food delivery app and test the effect of crossmodal correspondences between vision and taste as a processing mechanism.

In this study, two experiments were conducted using burgers and iced tea as stimuli.

The results demonstrate that repetition of an identical food product increases visual appeal for both burgers and iced tea. However, the optimal level of repetition was different between the two products. The findings show that different compositional lines generate different levels of visual appeal and the effects of compositional lines vary between burgers and iced tea. The results also validate the serial mediation effects of vision and taste between design principles and purchase intention.

The findings of this study add substantially to the understanding of visual information processing in food retailing by demonstrating how design principles such as repetition and compositional lines facilitate crossmodal responses between vision and taste and influence purchase decisions in a mobile platform. Also this study provides guidance as to how food retailers use design principles (e.g. repetition and compositional lines) for different products effectively when the food retailers develop visual digital content for a mobile app.

Addressing stigmatized identity threat cues customers experience, this study aimed to uncover the effects of frontline employees' ethnic and body-size diversity which lead to customer self-objectification and negative store attitude.

The researchers conducted two studies: Study 1 utilized a one-way ANOVA and a PROCESS mediation model to test the effect of Western beauty-ideal stereotypes on stigmatized identity threat and self-objectification. Study 2 utilized a 2 × 2 experimental design to examine the effects of body-size diversity and ethnic diversity on perceived warmth of sales associates and store attitude.

Results demonstrate that retail store environments which present Western beauty-ideal stereotypes among sales associates cultivate higher levels of stigmatized identity threat cues with their customers, which leads to self-objectification. Also, our findings demonstrated that a lack of ethnic and body-size diversity (i.e. thin and White) among sales associates decreased the perceived sales associate warmth and in turn lowered store attitude.

Participants of the first study were limited by the White participants. The implications highlight the integral need for retailers to hire sales associates who fall outside the parameters of typical Western beauty standards because today's customers desire inclusive brands who do not discriminate based on ethnicity, body size and other characteristics.

This research utilized social identity theory to uncover the effect of retail sales associate stereotype on customer perception of employees, which has not to our knowledge been previously studied.