Customer loyalty is a desired and essential result for companies in a business environment with a lot of competition, of which the fashion industry is no exception. For the fashion industry, the competition between businesses is increasingly fierce with the appearance of tailored fashion brands for each customer, also known as a designed fashion brand. The objective of this study is to examine the relationship between the antecedents of the relationship (reputation of designer, social media marketing) and customer relationship (trust and intimacy), and loyalty of customer for a designed fashion brand. The mixed research method is used to achieve research objectives with qualitative and quantitative research method. Qualitative data was collected through in-depth interview with 12 participants in Ho Chi Minh City, while quantitative data was collected by a survey of 799 respondents in Ho Chi Minh City and Hanoi City. The results show that the antecedents of relationship marketing positively affect on customer relationship and customer loyalty. Moreover, customer relationship has a positive impact on the customer loyalty when shopping for fashion products. From the research results, some managerial implications are also proposed for the designed fashion brands to improve the relationship marketing performance.

Online training has been a common form of training all over the world for many years ago; however, it is only a side choice alongside offline training. Not only students but also lecturers prefer offline training to online training. However, in some cases of force majeure, specifically the nCov-19 flu pandemic, online training is considered the best way to teach. This study is based on the Technology Acceptance Model 2 (TAM2) to learn about the lecturers' adoption of using the learning management system (LMS) at universities in Vietnam. Mixed research methods are used to achieve the research objectives. Online group discussions, as well as online surveys, were conducted to collect data to analyze and test the hypotheses as well as the theoretical model. The results of the study are similar to the conclusions of TAM2. Thereby, the study proposes managerial implications to improve the lecturers' adoption.

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Loyalty is an important key performance indicator to assess a business's success, especially in an online business environment with fierce competition. The explosion of social networking sites has created a new form of business: social commerce. Simultaneously, the scale of loyalty in online transactions has some limitations; hence, this research aims to develop and validate an electronic loyalty scale in the context of social commerce. The study used a mixed research method with two phases of a sequential exploratory strategy. Qualitative research generated the scale and was used in the initial filtering to develop an e-loyalty scale for social commerce. This study conducted two quantitative studies with 715 social commerce shoppers in five developed areas in Vietnam: Ho Chi Minh City, Ha Noi City, Hai Phong City, Da Nang City, and Binh Duong Province. Based on our research survey and literature review, the research results showed that electronic loyalty in social commerce is expressed in three dimensions: preference, interaction, and personal information’s disclosure. Then, the research proposed several relevant implications for other researchers and administrators of online businesses.

There is no denying that electronic commerce has brought many benefits to consumers. In the competitive market, capturing the benefit that customers perceived will be the best way for the sustainability of online businesses. However, in the context of increasing human life quality, re-examining the beneficial dimensions of electronic commerce (e-commerce) is a necessity. This study aims to develop and validate a perceived benefit scale of e-commerce concerning the mental viewpoint. The qualitative research and quantitative research method are used according to the development and validation procedure proposed by Churchill in 1979. The research result indicates that the perceived mental benefit of online shopping is in the second-order concept of four dimensions, including perceived shopping enjoyment, perceived social interaction, perceived discreet shopping, and perceived control. Some research and managerial implications are proposed.

Web 2.0, focusing on user involvement and cooperation, is vital for online marketing. To succeed in such a cutthroat industry, every online business must place a premium on earning and retaining clients' trust and loyalty in the digital realm. The study's objective is to ascertain whether or not electronic consumer loyalty and online trust are enhanced by social media marketing. The results of the poll, which included 596 individuals, showed that social media marketing tools had a significant effect on consumers' faith in and commitment to businesses through digital channels. The results of this study will hopefully add to what has been applied to social media marketing for online businesses.

<p class="Default"><em><em><span>Artificial Intelligence (AI), applied in many fields, is the core of the fourth technological revolution. In business, AI is used for customer relationship management as applied in the autoresponder systems, i.e., chatbot. Chatbots were an essential tool in the marketing relationship as many companies applied this function to their website; hence, this study analyzed the influence of chatbots on the enterprise's integrated marketing communication (IMC) activities, resulting in impulse purchase behavior and repurchase intention behavior. The mixed research method was used, particularly the in-depth interview and the survey with 886 online consumers, who shop from the online websites with chatbots system in Vietnam as Tiki, Lazada, Sendo, excetera. The research results showed that the perceived usefulness and ease of use of chatbots have positively affected the attitude of online consumers to the IMC activities of businesses. Simultaneously, IMC leads to impulse buying as well as the repurchase intention behavior of customers. The study proposed some managerial implications for an online business to enhance the chatbot functions to consumer behaviors in the website.</span></em>  </em></p>