The impact of internal control system effectiveness on store performance in the retail media sector in the age of sustainability: Case of D&R store

This study mainly aimed to examine the impact of the effectiveness of the internal control system on store performance through the example of D&R Store in the retail media sector in Türkiye. In the study, it was investigated whether the effectiveness of the internal control system has a significant and positive effect on the perception of store performance through the COSO internal control components. It was also investigated whether these perceptions differed according to demographic characteristics. Methodologically, a descriptive online survey method including a questionnaire prepared in accordance with the 5-point Likert scale was used to collect data. 302 employees responded to the survey included statements regarding demographic characteristics and COSO’s main internal control components. The data were analyzed with SPSS-22. The study concluded that all COSO internal control components (control environment, risk assessment, control activities, information-communication, monitoring) have a positive and significant effect on store’s performance perception. Furthermore, the study revealed that these perceptions differed according to demographic characteristics. While statistically significant differences in perceptions were found according to demographic characteristics such as gender, job position, and years of professional experience, no significant differences were found based on demographic criteria such as age and educational level. The study is considered to contribute to the literature because it is the first study to investigate the impact of the effectiveness of the COSO internal control system components on store performance together with the example of D&R Store in the retail media sector. The study is limited by the selected sample store, number of participants, survey questions-answers, the applied statistical analysis methods and tests. Therefore, in order to reach more general results, it is suggested to expand the studies with more diverse and larger numbers of stores in the retail media sector, employees, survey questions and statistical methods. Key Words:Internal control model, COSO, store performance, internal audit