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The article deals with a comprehensive, interdisciplinary examination of the effect of lighting on the purchasing decisions of consumers and the perception of lighting on the food market. It is the integration of questionnaire survey and measuring of light intensity and color temperature (chromaticity), respectively, of emitted color spectrum in grocery shops. The object of the study is the accent lighting in served shop departments of fresh food (meat, deli, dairy products, fruit, vegetables, bread, pastry) but also in other departments of supermarkets (wine, alcohol, organic food, specials, seasonal goods). Based on the light tests conducted in retail stores, we have identified the light conditions in national and international chains operating in Slovakia. Using EEG equipment in simulated conditions, we discovered true consumer preferences for different lighting conditions (color temperature, color rendering index) for the selected type of food. The article concludes with certain managerial implications in the sphere of food retailing and recommendations for further research studies.
Horská et al. (2014) studied this question.