• The Journal of Asian Finance, Economics and Business
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• 제8권8호
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• pp.583-592
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• 2021

This study examines social identity and self-identity as the antecedents of the theory of planned behavior (TPB) model in predicting purchase intention of certified coffee, whereas perceived trustworthiness (PT) is evaluated whether it directly affects intention and/or indirectly through attitude. In addition, ethics and luxury are investigated as the salient beliefs affecting attitude formation in this regard. A face-to-face survey was conducted with 727 coffee consumers in Thailand. Confirmatory factor analysis is applied to assess the adequacy of the model, followed by structural equation modeling to evaluate the hypotheses proposed for the relationships between constructs in an extended TPB model. The results confirm that self-identity is the most influential antecedent on attitude when compared to social identity, and attitude, in turn, is the strongest determinant in predicting purchase intention. PT has a direct positive effect on purchase intention, meanwhile, ethical, luxury beliefs, and PT are confirmed to portrait the attitude formation. As such the marketing campaigns can address manipulating consumers' beliefs on both ethical and luxury aspects as well as PT, along with consumers' social identity and self-identity to fortify a positive attitude toward certified coffee. Then the actual purchase behavior can be foreseen based on empirical evidence.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권10호
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• pp.3333-3354
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• 2022

The 5G Core Network (5GC) is an essential part of the mobile communication network, but its security protection strategy based on the boundary construction is difficult to ensure the security inside the network. For example, the Network Function (NF) mutual authentication mechanism that relies on the transport layer security mechanism and OAuth2.0's Client Credentials cannot identify the hijacked NF. To address this problem, this paper proposes a trust model for 5GC based on NF interaction behavior to identify malicious NFs and improve the inherent security of 5GC. First, based on the interaction behavior and context awareness of NF, the trust between NFs is quantified through the frequency ratio of interaction behavior and the success rate of interaction behavior. Second, introduce trust transmit to make NF comprehensively refer to the trust evaluation results of other NFs. Last, classify the possible malicious behavior of NF and define the corresponding punishment mechanism. The experimental results show that the trust value of NFs converges to stable values, and the proposed trust model can effectively evaluate the trustworthiness of NFs and quickly and accurately identify different types of malicious NFs.

• 한국콘텐츠학회논문지
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• 제22권10호
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• pp.563-574
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• 2022

본 연구는 정치정보원이 다양화되면서 그동안 설득커뮤니케이션 영역에서 주목받지 못했던 정보원의 속성을 정치 콘텐츠를 노출시키는 정치 유튜버에 적용해 그 영향력을 분석하였다. 이를 위해 전국의 20세 이상 성인남녀 326명을 대상으로 국내 여론조사 기관을 통해 온라인 설문조사를 실시했다. 연구결과 정치 유튜버의 유사성, 카리스마, 전문성의 순으로 해당 콘텐츠에 대한 시청자의 태도에 긍정적인 영향을 끼쳤다. 콘텐츠를 통해 노출되는 정치인/정당에 대한 태도에는 정치 유튜버의 친숙성, 카리스마, 유사성, 매력성, 신뢰성 순으로 긍정적인 영향을 미쳤다. 유튜브를 통해 노출되는 정치콘텐츠의 경우 콘텐츠에 대한 태도와 그 콘텐츠에 등장하는 정치인/정당에 대한 태도에 영향을 미치는 속성이 다르게 나타났으며, 콘텐츠에 대한 태도는 정치인/정당에 대한 태도와 이들에 대한 지지에 긍정적인 영향을 미쳤다.

• 동아시아경상학회지
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• 제11권1호
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• pp.31-40
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• 2023

Purpose - The prior literature indicated that green consumerism encouragements and programs have led to strict standards against environmental issues, thus reducing emissions from motors and engines and improving clean-burning energy options. The present study seeks to elaborate on the responsibility of ecological education in amplifying potential green consumers. Research design, Data, and methodology -The justification of the qualitative literature method used in this research is essential because, through the extensive explanation, justification and description of the methods used, researchers can enhance the trustworthiness of the research to a particular or designated audience. Result - Environmental education helps customers worldwide recognize the barriers to purchasing green products at every purchase level. Prior studies pointed out that after environmental education, consumers are much more willing to go greener in their consumption and safeguard the environment. Customers want to act green; however, they anticipate companies to lead the way. Conclusion - This research suggests that reusing prevailing resources creatively implies that fewer dollars are spent buying novel stock to generate green products. Although establishing a green company is expensive, it saves a lot of cash over time. Greening procedures can lead to efficiency gains by minimizing energy costs, permitting companies to acquire green tax credits.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권2호
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• pp.609-631
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• 2022

The main goal of VANETs is to improve the safety of all road users. Therefore, the accuracy and trustworthiness of messages transmitted in VANETs are essential, given that life may rely on them. VANETs are provided with basic security services through the use of public key infrastructure-based authentication. However, the trust of users is still an open issue in VANETs. It is important to prevent bogus message attacks from internal vehicles as well as protect vehicle privacy. In this paper, we propose a trust management scheme that ensures trust in VANETs while maintaining vehicle privacy. The trust scheme establishes trust between vehicles where a trust value is assigned to every vehicle based on its behavior and messages are accepted only from vehicles whose trust value is greater than a threshold, therefore, protecting VANETs from malicious vehicles and eliminating bogus messages. If a traffic event happens, vehicles upload event messages to the reachable roadside unit (RSU). Once the RSU has confirmed that the event happened, it announces the event to vehicles in its vicinity and records it into the blockchain. Using this mechanism, RSUs are prevented from sending fake or unverified event notifications. Simulations are carried out in the context of bogus message attacks to evaluate the trust scheme's reliability and efficiency. The results of the simulation indicate that the proposed scheme outperforms the compared schemes and is highly resistant to bogus message attacks.

• 유통과학연구
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• 제21권6호
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• pp.1-11
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• 2023

Purpose: As a modern distribution channel, the growth of e-commerce has brought more competitive pressures on e-marketplace, making trust and loyalty become top priority. As one of many sources of trust and loyalty issues, understanding the effect of careless marketing communications on consumers' perception is critical. This study examines the effect of careless marketing communications (e.g. misspellings, incomplete information) in website on consumers' trust toward and confidence in purchasing a product from an e-commerce. Research design and methodology: An experimental research design (with two experimental studies) was used in to test the hypotheses. Study 1 employs a single-factor design and study 2 employs a 2x2, full-factorial, between-subjects design. Results: Results of the two experimental studies (Study 1, n = 60; Study 2, n = 140) demonstrate that simple mistakes significantly decrease consumers' trust toward an e-commerce and their confidence to purchase from the e-commerce. The effect is found to be significant in the case of high-involvement products; whereas no effect is found in low-involvement products. Conclusions: E-commerce relies heavily on carefully crafted marketing communications to establish consumers' trust and confidence. These studies confirm the equal importance of distribution and communication in maintaining consumers' trust and sustainability of the business.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제17권5호
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• pp.1484-1502
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• 2023

The medical sector actively changes and implements innovative features in response to technical development and revolutions. Many of the most crucial elements in IoT-connected health services are safeguarding critical patient records from prospective attackers. As a result, BlockChain (BC) is gaining traction in the business sector owing to its large implementations. As a result, BC can efficiently handle everyday life activities as a distributed and decentralized technology. Compared to other industries, the medical sector is one of the most prominent areas where the BC network might be valuable. It generates a wide range of possibilities and probabilities in existing medical institutions. So, throughout this study, we address BC technology's widespread application and influence in modern medical systems, focusing on the critical requirements for such systems, such as trustworthiness, security, and safety. Furthermore, we built the shared ledger for blockchain-based healthcare providers for patient information, contractual between several other parties. The study's findings demonstrate the usefulness of BC technology in IoHT for keeping patient health data. The BDSA-IoHT eliminates 2.01 seconds of service delay and 1.9 seconds of processing time, enhancing efficiency by nearly 30%.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제26권2호
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• pp.63-82
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• 2023

In the context of Korean educational research, the number of qualitative research studies has gradually increased since 2000. It has become one of the most important research methods today. The field of math education is no exception to this trend, and qualitative approaches are now becoming one of the main research methods. This increase in qualitative research has contributed to the provision of detailed information about educational practice, but at the same time, the overall level of credibility in the results of qualitative research seems to be lower than that of quantitative research. This study started with the problem consciousness that the number of qualitative studies is increasing in the field of mathematical education, but there is a lack of discussion on the methodology of applying qualitative research methods. In this study, among the papers published in the journal related to mathematical education, papers using a qualitative approach are analyzed focusing on cross-case analysis. Based on the analysis results, the tendency to use qualitative approaches is diagnosed, ways of improving the validity and trustworthiness of qualitative research results in the field of mathematical education are examined, and implications and suggestions are presented.

• Asia Marketing Journal
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• 제5권3호
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• pp.106-131
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• 2003

본 연구는 소비자 신뢰의 형성과 역할에 대한 모델을 전자상거래에 적용시켜서 온라인 구매의사결정에 관한 연구모델을 제시하고 그 모델의 유효성을 실험적 조사를 통해 평가하는데 주목적이 있다. 모델의 검증을 위하여 신뢰가 성립하기 위한 선행변수(거래 안전성, 웹사이트 실체성, 검색 기능성)와 조절변수(웹사이트 친숙도), 그리고 결과변수(구매의향)로 구성된 연구모델의 변수간의 구조적 관계를 검증하였다. 본 연구의 개념적 모델에서 신뢰도는 만족도와 함께 온라인 구매의향에 유의한 영향을 미친다고 설정되었다. 122 명의 대학생을 연구 참여자로 선정하여 전산실에서의 통제된 시뮬레이션 상황에서 4 개의 사이트(한솔 CS, 롯데, 메타랜드, 지그타운)를 대상으로 실행된 본 연구의 주요분석 결과는 다음과 같다. 첫째, 웹사이트 신뢰도는 사이트 안전성과 실체성에는 반응하였으나 기능성은 신뢰도에 영향을 미치지 못하였으며, 웹사이트 만족도는 웹사이트의 안전성, 실체성, 기능성에 모두 민감히 반응하였다. 둘째, 4 개 사이트 중에서 3 개가 웹사이트 만족도 보다는 신뢰도가 구매의향에 영향을 더 많이 주는 것으로 나타났다. 셋째, 2 개 사이트에서 웹사이트 신뢰도는 만족도와 서로가 구매의향에 대해 상대적인 조절역할을 하는 것으로 나타났다. 본 연구의 결과는 전자상거래에서 점차 중시되고 있는 신뢰도에 대한 개념을 웹사이트 만족도와 온라인 구매의향과 연관하여 파악함으로써 신뢰도의 원천과 영향력에 대한 실체적이고 현실성 있는 접근방법을 제시하여 줌으로써 웹사이트의 개발에 관련하여 인터넷 마케터들에게 효과적인 마케팅 전략의 수립을 위한 이론적, 실무적 근거를 제공하여 준다.

• 아태비즈니스연구
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• 제14권2호
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• pp.141-151
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• 2023

Purpose - This study aims to determine whether four characteristics of tourism content on YouTube (i.e., entertainment; credibility; diversity; and informativeness) influence tourists' destination choices. Design/methodology/approach - A total of 201 Koreans and Mongolians who use YouTube were surveyed in the research. Validity and reliability, correlation, and regression analyze were performed in SPSS 29.0. Findings - As a result of the study, it was found that the features of YouTube tourism content, such as entertainment, credibility, and diversity, have a positive effect on tourists' choice of destination. Also, it was found that there is no difference in the perception of tourism content features between Korean and Mongolian YouTube users and it is not statistically significant. Research implications or Originality - Tourists' YouTube content shows that YouTube features such as entertainment, variety, and trustworthiness, influencing tourists' travel destination choices. The limitations of this study and suggestions for future research were discussed.