The rapid growth of the domestic food delivery market has led to intense market competition as the use of delivery applications has grown quickly. This study explored the variables of personal innovativeness, trust, perceived ease of use, perceived usefulness, and intention to use such applications by testing the extended technology acceptance model (ETAM). By using Google Forms, data were collected from 10 May 2022 for a period of two weeks from Koreans who have experience using mobile food delivery applications. A total of 296 responses were used to test the hypotheses. The findings revealed that personal innovativeness had a positive effect on perceived ease of use. Trust was found to positively affect perceived usefulness and perceived ease of use. The variables perceived ease of use and perceived usefulness significantly influenced intention to use food delivery applications. This current research study provides practical implications by suggesting that ease of use with food delivery applications deserves further consideration. It was shown to be a key factor in increasing the intention to use such applications and can help to influence the creation of strategies to enhance continuous usage.

The promotion of healthful dietary intake in adolescents is an important public health concern, as obesity is on the rise among adolescents. The current study aimed to determine the association between sociodemographic characteristics and dietary intake (breakfast, vegetables, milk, fruits, fast food, carbohydrate beverages, and caffeine beverages) and to examine the influences of physical and mental health on dietary intake. A nationally representative sample of 187,622 adolescents who attended middle and high schools and participated in the Korean Youth Risk Behavior Survey (2015, 2017, and 2019) was used. The results showed a decrease in breakfast, vegetable, milk, and fruit consumption and an increase in the obesity rate from 2015 to 2019. There was a significant association between dietary intake and gender, economic status, BMI, and academic achievement. Multiple logistic regression analysis results revealed that the consumption of breakfast, vegetables, milk, and fruit were associated with greater odds of having enough sleep. Fast food intake was shown to be a significant risk factor for depression with an odds ratio of 1.204 (95% CI = 1.169–1.239), and carbonated beverage consumption was shown to be a significant risk factor for stress with an odds ratio of 1.042 (95% CI = 1.030–1.054). These results provide fundamental data that can be used to develop an effective nutrition intervention program or nutrition policy for adolescents or school food service programs.

While food can function as a component product of tourism, there remains a need for food tourism to become more sustainable. This study sought to discover what risk dimensions tourists perceive in food tourism and to enhance understanding of what actions and coping behaviors tourists take to lower levels of perceived risk in a food tourism setting. Data were collected in March 2023 for two weeks from Chinese tourists who considered traveling to Jeju Island, South Korea. A total of 303 responses were analyzed using exploratory factor analysis, confirmatory factor analysis, and structural equation modeling to test 13 hypotheses. Results identified physical risk, communication risk, and food-related risk as concerns for tourists, and the results confirmed support for 11 of the hypotheses tested. This study has theoretical implications for supplementing insufficient prior research by examining the risk factors perceived by tourists when participating in food tourism. Practical implications from this study include ways to reduce the level of perceived risk dimensions for sustainable food tourism experiences.

Understanding how park visitor experiences contribute to visitor satisfaction is essential for promoting sustainable tourism in protected natural areas. While prior research has established a positive relationship between tourist experiences and satisfaction, less attention has been paid to examining the influence of experience dimensions and their influence on psychological outcomes. By applying three tourist experience dimensions (learning, enjoyment, and escape), this study examined the structural relationships among perceived restorativeness, happiness, and satisfaction among national park visitors in Kazakhstan. Using structural equation modeling, the study examined 253 park visitors’ responses collected from February to April 2025 to test hypotheses. The results revealed that learning, enjoyment, and escape all positively influenced perceived restorativeness. Perceived restorativeness, in turn, significantly enhanced happiness and satisfaction, while happiness also had a positive effect on satisfaction. Moreover, all three experience dimensions exerted significant indirect effects on satisfaction through perceived restorativeness and through the sequential pathway of perceived restorativeness and happiness. Theoretically, the study contributes to the understanding of tourist experience and psychological benefits in a national park setting. Practically, the results highlight the importance of providing psychological restoration experiences to enhance connections to nature among tourists.

This study empirically examined how autonomy and competence from Self-Determination Theory (SDT), along with perceived risk, influenced customers’ well-being and continued use intention of restaurant self-service kiosks in South Korea. Despite the rapid adoption of kiosk-based services, limited research has explored how psychological factors shape both hedonic and eudaimonic well-being in technology-mediated service contexts. To address this gap, this study investigates the role of autonomy, competence, and perceived risk in influencing well-being and subsequent behavioral intentions. Data were collected from Korean customers who had used restaurant self-service kiosks, for one month starting on 10 October 2024, and a total of 360 valid responses were used for hypothesis testing. The results indicated that both autonomy and competence positively affected on hedonic well-being, while only autonomy significantly affected eudaimonic well-being. Perceived risk negatively influenced both hedonic and eudaimonic well-being, which in turn positively influenced continued use intention. The findings contribute to the literature by extending SDT research in a kiosk-based service environment and highlighting the pivotal role of hedonic and eudaimonic well-being in shaping technology use behavior. Practical implications are offered and provide insights into the design of user-centered kiosk services that promote sustainable dining experiences.