• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.06a
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• pp.201-203
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• 2022

Increasing global market of used electric vehicle (EV) battery encourages international firms to establish its subsidiary companies or business units specializing in battery recycling. Such kind of companies predominantly use closed loop supply chain (CLSC) for their operations of battery manufacturing and used battery recycling/reusing in global scale. However, EV battery recycling, as a relatively new industry, makes its global CLSC be exposed to various types of risks, which leads to inefficiency of supply processes and makes supply chains more complicated and vulnerable. Identifying, evaluating, and analyzing possible risks in CLSC has a great importance for optimization and increasing effectiveness for the global supply chain of used EV battery. Itwill assist to elaborate the efficient CLSC management and possible risk mitigation strategies to keep the global EV battery supply chain resilient and sustainable. This study aims to develop a conceptual framework for risk assessment in this new sector. Therefore, it will populate the framework with possible failure modes identified from various literature on EV battery recycling and closed loop supply chains so that future research can validate and utilize the conceptual framework.

• Structural Engineering and Mechanics
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• v.88 no.5
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• pp.493-500
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• 2023

The multiparameter eigenvalue method can be used to solve the damped finite element model updating problems. This method transforms the original problems into multiparameter eigenvalue problems. Comparing with the numerical methods based on various optimization methods, a big advantage of this method is that it can provide all possible choices of physical parameters. However, when solving the transformed singular multiparameter eigenvalue problem, the proposed method based on the generalised inverse of a singular matrix has some computational challenges and may fail. In this paper, more details on the transformation from the dynamic model updating problem to the multiparameter eigenvalue problem are presented and the structure of the transformed problem is also exposed. Based on this structure, the rigorous mathematical deduction gives the upper bound of the number of possible choices of the physical parameters, which confirms the singularity of the transformed multiparameter eigenvalue problem. More importantly, we present a row and column compression method to overcome the defect of the proposed numerical method based on the generalised inverse of a singular matrix. Also, two numerical experiments are presented to validate the feasibility and effectiveness of our method.

• Korea Trade Review
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• v.46 no.3
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• pp.99-117
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• 2021

Korea's FTA e-commerce regulations are evolving into a standardized norm. However, "location of computing facilities", which was not covered by Korea's existing FTA, was newly established in Korea's first Mega FTA, RCEP. China, a member of RCEP, restricts data movement and requires data localization through its Cybersecurity law. These facts have led to start this study with interest in data-related regulations. It examined country-specific and regulatory characteristics in the process of forming digital trade norms, using the TAPED established by Burri et al. (2020). It also analyzed the current status of introducing norms related to 'data flow', 'data localization' and 'data protection' of the EU, USA and China, which are leading the formation of e-commerce trade norms. Finally, the legal review was conducted to compare the exact meaning of the wording expressed in each agreement for the six recently enacted Mega FTAs and Digital Economic Agreements. These findings are meaningful in that they provided implications for the effectiveness of RCEP and the direction of negotiations on Korea's digital trade norms.

• Korea Trade Review
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• v.46 no.6
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• pp.39-54
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• 2021

This study comprehensively reviews the research conducted until recently in order to derive realistic alternatives in consideration of local industries. The case analysis was performed on a competitive port of similar size, and strategies and revitalization measures were suggested in consideration of the conditions of Gunsan Port. Literature review focused on papers and major reports. The case of similar size were analyzed for Daesan port, Boryeong port, and Mokpo port. In order to find strategies to revitalize the regional port logistics industry behind Gunsan Port, the recent opportunities and threat factors of Gunsan Port were derived. In order to foster the regional port logistics industry with Gunsan Port as its main base, this study proposes a three-step development strategy. It is necessary to increase the effectiveness of the public-private joint port sales and maintain the incentive system, but use it as a means to strengthen the competitiveness of Gunsan Port. Since the possibility of opening various routes is not high due to the conditions of Gunsan Port, various business models can be devised to link the currently opened routes. Start-up in the logistics field can stand out if they provide predictive data or provide consulting services by securing and analyzing logistics data, not directly providing logistics services.

• Journal of Distribution Science
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• v.21 no.12
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• pp.113-125
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• 2023

Purpose: Support policies for small and medium-sized retailers (SMSRs) have been promoted in various ways over the past 20 years, but they are generally regarded as unsuccessful. The purpose of this study is to analyze the process and impact of policy changes, identify the reasons for the lack of success, and explore policy alternatives. Research design, data and methodology: This study explored major policies in various categories such as the retail industry, traditional markets, and Micro-Enterprises from the mid-1990s to the present. It also analyzed the short- and long-term impacts of major policies at the retail format level like SMSRs, using data from Statistics Korea's service industry survey. Results: This research found that sudden shifts in policy philosophy conflicted with the existing market structure and reduced the effectiveness of policies. It also found that policies aimed at improving competitiveness at the SMSRs-level had some effect, while polices aimed at supporting expenses at the individual store-level were difficult to achieve their intended purpose. Conclusions: The failure of the policy to support SMSRs is fundamentally due to the late response and conflicts between policies. It was also not successful due to the policy's focus on individual store-level expenses and maintaining employment rather than structural improvements of SMSRs format.

• Korea Trade Review
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• v.45 no.4
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• pp.83-93
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• 2020

Sanctions by the international community can increase their effectiveness with the participation of major countries with global economic influence, and can lead to efficient sanctions against the target countries when different sanctions procedures and methods can be operated in an integrated manner. To this end, it is being carried out with the aim of maximizing the performance of sanctions through collective economic solidarity by inducing international participation centered on the joint agenda, such as drawing up a resolution for sanctions. In this study, the definition and purpose of sanctions imposed by the international community and by major specific countries were explained and an empirical analysis was conducted on the economic impact of each sanctions, focusing on the United Nations Security Council and the United States, which directly implement them. Based on the selected research model, the effects of economic sanctions on the international community and countries subject to sanctions by certain countries were mutually compared and analyzed in the data. Finally, the conclusion obtained from this study was stated and the implications were derived and the possibility of further research expansion was described.

• Journal of Distribution Science
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• v.22 no.5
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• pp.131-138
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• 2024

Purpose: This study aims to fill the existing gap in the existing literature by investigating the mediating effect of psychological empowerment between leadership and motivation for workers at retail stores, and to extend the previous research to determine the preferences of the researchers and practitioners in leadership and employee motivation in retail through a systematic approach. Research design, data and methodology: This study used a systematic approach to the mediation effect of psychological empowerment on the relationship between leadership and employee motivation in retail stores. To ensure completeness, systematization, and transparency, the preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) approach was applied. Results: The research findings (Total Four Mediating Roles) suggest that psychological empowerment may mediate between leadership and employee motivation. These mediation roles (Empowering Leadership Styles, Organizational Culture and Psychological Empowerment, Customer Psychological Empowerment, and High-Performance Work Systems (HPWS) and Psychological Empowerment) will help practitioners comprehend how these empowerment and motivation leadership styles are interconnected in the retail industry. Conclusions: The research results indicate that psychological empowerment is essential for employee motivation in the retail sector. Through this knowledge, retail store managers can implement strategies designed to empower employees and create a motivated workforce, bolstering organizational effectiveness.

• The Journal of Information Systems
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• v.33 no.2
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• pp.219-236
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• 2024

Purpose The purpose of this study is to investigate the effect of micro and macro-influencers on consumer purchase intentions, specifically focusing on the role of the product's origin (domestic or foreign). The study will specifically analyze the markets of South Korea and Kyrgyzstan to understand how various types of influencers impact consumer behavior within these unique cultural and economic settings. Design/methodology/approach This study evaluates hypotheses using the factorial design method among social media users in South Korea and Kyrgyzstan. The experiments involve scenarios with eight different groups. The analytical research methodology used is analysis of variance (ANOVA). Findings The study findings confirmed that micro- and macro-influencers have varying effects on consumer behavior, which supports previous research. The inclusion of the product origin factor resulted in more accurate data. In both the South Korean and Kyrgyzstan markets, the findings indicated that micro- and macro-influencers have limited success in promoting local products. However, when it comes to promoting foreign products, there are notable differences in effectiveness between micro- and macro-influencers, with macro-influencers being more effective.

• Journal of Research and Publication Ethics
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• v.5 no.1
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• pp.13-18
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• 2024

Purpose: Since 2006, social, ethical, and institutional options have been attempted in Korea to establish research ethics; however, the effectiveness of these attempts has not been thoroughly examined. Studies have been conducted abroad to determine the timeliness of social, ethical and institutional alternatives, such as the adoption of laws governing research ethics, the improvement of research ethics education, the bolstering of systems, the introduction of incentive programs, and the creation of social environments that support research ethics. Research design, data, and methodology: Specific facets of research misconduct or research ethics must be investigated and verified. Aspects of moral growth at the person level must be investigated via research ethics and research ethics education. Results: There is an increasing need for the general public to define and uphold research ethics as the impact of research findings on society grows. Researchers can boost their confidence in their ethical judgments and actions by being aware of research ethics. This may lead to confidence in their capacity to make morally sound decisions. Conclusion: By doing this study, the researcher confirmed that ethically correct behavior can lead to and realize self-growth. Researchers may be more interested in and dedicated to their work when they feel that their research might help them mature and develop ethically.

• Asia-Pacific Journal of Business
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• v.15 no.1
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• pp.335-352
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• 2024

Purpose - Low fertility rate is a serious problem, and this study analyzes factors affecting total fertility rate using panel data from 16 metropolitan cities and provinces in Korea from 2000 to 2022. Design/methodology/approach - Estimating the SAR model considering the weak cross-sectional dependence that exists in variables related to the regional total fertility rate, and using the DKSE estimation method considering the strong cross-sectional dependence. Findings - Estimation results considering weak and strong cross-sectional dependence were similar, confirming the robustness of the results. Female labor force participation rate has a positive effect on total fertility rate, and employment rate has no effect. However, the interaction term is a negative (-) sign. Crude marriage rate has a positive effect on total fertility rate, and apartment price has a slightly positive effect. Environmental factor has no effect, and policy factor has a negative effect. Research implications or Originality - In order for an increase in the female labor force participation rate to lead to an increase in the total fertility rate, qualitative improvements in female employment must be made. Financial investment policies for childbirth must increase their effectiveness. The problem of low fertility rate requires not only population policy but also social, economic, cultural, environmental, and policy conditions to be considered.