One of the main methods of shopping for many consumers during the COVID-19 pandemic was through online community group-buying. This shopping method caters to the consumer demand of reducing contact and centralized procurement. However, some online community group-buying platforms could not attract many consumers, and consumer participation was low. Therefore, determining which factors affect consumers’ willingness to use online community group buying is important. Based on the Unified Theory of Acceptance and Use of Technology (UTAUT) and perceived risk theory, this research explores the effects of performance expectancy, effort expectancy, social influence, facilitating conditions, and perceived risk on consumers’ willingness to use online community group buying. In this research, a questionnaire survey was used, and the sample randomly collected from online consumers who had experience in online community group buying. A total of 280 respondents were collected. The collected data were analyzed by descriptive statistics, reliability, validity, correlation, and regression analysis. The results show that performance expectancy, effort expectancy, and social influence have a significant positive effect on the purchase intention of community group-buying consumers, while facilitating conditions and perceived risk have no significant positive effect. This research further enriched and improved the research on the use intention of an online community group-buying platform by integrating the UTAUT model and perceived risk theory. In practice, this research provides a new perspective and practical reference for how the online community group-buying platform can better attract consumers and maintain sustainable long-term customer relations.

With the development and maturity of China's financial market, the competition in the banking industry is becoming more and more fierce. In the banking industry, the training of new employees can enable new employees to fully grasp the post business knowledge and skills and quickly adapt to the working environment of the bank. However, there are still many deficiencies in the new employee training system of Yantai commercial bank, which hinders the rapid development and independent innovation of new employees and is not conducive to the stable and sustainable development of the bank. Therefore, it is necessary to study the bank's new employee training system. Through the analysis of the current situation of Bank new employee training, this paper finds out the relevant problems. It also puts forward countermeasures and suggestions to improve the training level of new employees in commercial banks.

Due to the rapid development of economy and society, the living standard of residents has been continuously improved, and people's pursuit of life has been continuously improved. More and more brands are available for consumers to choose, and the competition among major brands is becoming more and more fierce. Making good use of brand communication and realizing the optimization and upgrading of brand communication effect has become more and more important in the brand development of retail industry. Taking YZ supermarket as the research object, this paper uses the methods of questionnaire, interview and literature research to study the problems existing in brand communication, and puts forward the corresponding improvement countermeasures. It is hoped that this study can help the supermarket brand communication and provide reference for the communication of other brands.