• Economic and Environmental Geology
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• v.56 no.4
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• pp.447-456
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• 2023

Even after 2000, oil prices rose enough to be comparable to the past, but the impact on economic variables was relatively stable. Therefore, this study tries to empirically examine that the response of the Korean economy to oil prices has changed since the 1998 financial crisis, when there was a structural change in the Korean economy. Through empirical analysis, it was tested that the influence of oil prices and producer prices on consumer prices had changed in the period before and after 1998, and that the influence of producer prices on the value-added ratio by industry sector also changed. This means that the transfer of the increase in production cost to consumer prices has been alleviated, and the impact on added value has also been alleviated. Various studies should be conducted to understand the causes of the empirical results, such as changes in the relationship between producer prices and consumer prices, factors in the industrial sector due to rising oil prices, and changes in products.

• Journal of the Korea Institute of Building Construction
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• v.23 no.3
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• pp.285-293
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• 2023

In this research, we embarked on a meticulous analysis of the challenges inherent in real-world scenarios relating to the durability design standards of engineered concrete structures and the assessment of carbonation durability in concrete guidelines. Our investigation brought to light substantial issues concerning constructability and quality assurance. The genesis of these problems is the exclusive application of prescribed strength to exterior walls, neglecting other elements to facilitate smoother licensing procedures. While this methodology aims to mitigate financial constraints in alignment with enhanced standards, it invariably invites complications. Furthermore, it is imperative to resolve the uncertainty surrounding durability evaluations by establishing a clear and definitive objective. Alongside this, actionable steps must be formulated to forestall the emergence of fissures between the floors of residential buildings, particularly apartment complexes. It is equally essential to tackle issues connected to application by devising a comprehensive management strategy for potential cracking during the phase of maintenance.

• Journal of Korea Trade
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• v.26 no.7
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• pp.127-144
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• 2022

Purpose - This study aimed to analyze the dynamic effects of progress in globalization on firm performance by employing individual companies' financial statement datasets. Design/methodology - The analysis leveraged the variables of operating revenue (OPRE) and pre-tax profit and loss (PLBT) as measurement variables for firm performance over 2011-2019. As a proxy variable for globalization, the trade index, a subordinate indicator of the KOF Globalization Index, was used. Through panel regression analysis, the relationship among those variables was ascertained, and the local projection (LP) method was subsequently utilized to identify dynamic effects. A subsample analysis was further performed by classifying companies based on their sizes and industries to determine the differential effects of globalization on each group. Findings - The panel regression analysis derived positive effects of an increasing degree of globalization on OPRE of Korea maritime and fishery firms. However, the impulse response functions, obtained from the LP, showed that in the short run, globalization affects PLBT negatively but in the long run, it gradually converted into a positive effect. In addition, according to the subsample analysis based on company size, the effects of globalization on OPRE became greater as each company became larger. Moreover, the industry-based analysis showed heterogeneous effects, depending on the industries in which the maritime and fishery companies operated. Originality/value - The analysis of the dynamic effects of globalization on firm performance, which revealed that the effects vary depending on the time points, is the important contribution of this study. The results also suggest that the effects of globalization vary depending on the company size and industry.

• Journal of the Korea Society of Computer and Information
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• v.14 no.7
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• pp.105-112
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• 2009

Small and medium enterprises have more dependency on their information technology than large enterprises have. but they can't pay much for information technology and information security due to financial restrictions, limited resources, and lack of know-how. So there are many vulnerabilities in small and medium enterprises and these would make many security incidents. Security managers of small and medium enterprises think that information security in their company is simply equivalent to updating the antivirus solutions. managing firewall, and patching systems regularly. However, security policies, prevention of information theft. business continuity, access controls, and many other information security issues should be considered for mitigating security incidents. In this context, we redefined security countermeasures and strategies which are only appropriate to large enterprises. for making them appropriate on a secure operating for information system of small and medium enterprises, and we investigate information security issues in the four views of information system and company, and finally we present information security strategies for each view, in this paper.

• Journal of Digital Convergence
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• v.20 no.3
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• pp.221-229
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• 2022

With the recent full-fledged MyData service, interest in the use of personal data is increasing. However, studies on MyData are still in the early stages, focusing on legal and institutional discussions, and studies from a comprehensive perspective are insufficient. Therefore, this study aimed at finding the potential topics formed by social discussions by analyzing news data from 2018 to the present. News data analysis using LDA topic modeling were conducted and 6 potential topics including digital transformation in finance, scope of Mydata business license, amendments and data-related laws, safe use of big data, data economy promotion policy and strategy of the financial industry were derived. This study has significance in that it comprehensively viewed the issues that emerged with the MyData and deriving gaps in previous discussion. Future research is expected to identify changes after the launch of MyData service and provide specific implications through research by specific industries.

• The Korean Journal of Franchise Management
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• v.2 no.2
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• pp.84-94
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• 2011

Domestic franchise industry is growing rapidly as a promising business in 21st century and also ordinary people business. Domestic franchise headquarters and franchisees have increased exponentially. However, because of tough competition in the industry, headquarters' lack o fawareness of recruiting and managing franchisees, and reckless expansion strategy for the structural problem of profit structure and lack of experts, systematic management and support system are not going well. For these reasons, the need of franchisee management system is growing up in this industry. Domestic franchise industry is focused on appearance, the volume, while absence and lowness of internal management systems are making stores shut down and conflicts proving necessity of management system. In this study, we find and study the way to compensate these problems and systematize by cooperating within surance companies to manage franchisees, and eventually to be able to set up and use new systems including franchise management system, initial services, on goin gservices, lega lservices, tax services, labor services, and financial analysis and planning services.

• The Korean Journal of Franchise Management
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• v.9 no.4
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• pp.45-56
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• 2018

Purpose - Consumers perceive various risks while using food service franchise stores. Food service franchise stores offer consumers not just menus, but services, physical environment, and prices, which can be perceived as risk to consumers. This means that consumer behavior in foos service franchise stores needs to be studied based on perceived risk theory. Perceived risk consists of performance risk, financial risk, social risk, psychological risk, and time risk. The purpose of this study is to investigate the effects of perceived risk on satisfaction and trust, and in turn affect loyalty. The results of this study will provide guidelines for marketers to develop strategies to reduce the perceived risk of consumers. Research design, data, methodology - In order to achieve research purposes, the authors developed several hypotheses. Data were through online survey through an online survey firm. A questionnaire survey was distributed to customers who have visited the restaurant in the past three months. The survey was conducted from March 5, 2017 to October 14, 2017. A total of 1,500 people were e-mailed and 260 were returned. A total of 245 items were used in the analysis except 15 of the questionnaire. Data was analyzed by using SPSS 21.0 and AMOS 21.0. Results - The findings of this study are as follows: First, performance risk, economic risk, and psychological risk had negative effects on satisfaction. Social and time risks did not affect on satisfaction. Performance risk and time risk had negative impact on trust. Second, economic, social, and psychological risks did not affect trust, but satisfaction had significant positive effect on trust and loyalty. Third, satisfaction had positive effect on loyalty. Conclusions - The implications of this study are as follows. First, food service franchise marketers should increase their customer loyalty by establishing a risk reduction strategy. Second, there are various risks to customers visiting the store. Therefore, marketers need to analyze the perceived risks of customers. Third, it is also necessary to eliminate the perceived risks of customers. In addition, a restaurant franchise company needs to find a reasonable way to reduce the material cost and present a reasonable menu price.

• Journal of Veterinary Science
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• v.24 no.4
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• pp.58.1-58.25
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• 2023

Porcine epidemic diarrhea virus (PEDV) has posed significant financial threats to the domestic pig industry over the last three decades in South Korea. PEDV infection will mostly result in endemic persistence in the affected farrow-to-finish (FTF) herds, leading to endemic porcine epidemic diarrhea (PED) followed by year-round recurrent outbreaks. This review aims to encourage collaboration among swine producers, veterinarians, and researchers to offer answers that strengthen our understanding of PEDV in efforts to prevent and control endemic PED and to prepare for the next epidemics or pandemics. We found that collaboratively implementing a PED risk assessment and customized four-pillar-based control measures is vital to interrupt the chain of endemic PED in affected herds: the former can identify on-farm risk factors while the latter aims to compensate for or improve weaknesses via herd immunity stabilization and virus elimination. Under endemic PED, long-term virus survival in slurry and asymptomatically infected gilts ("Trojan Pigs") that can transmit the virus to farrowing houses are key challenges for PEDV eradication in FTF farms and highlight the necessity for active monitoring and surveillance of the virus in herds and their environments. This paper underlines the current knowledge of molecular epidemiology and commercially available vaccines, as well as the risk assessment and customized strategies to control PEDV. The intervention measures for stabilizing herd immunity and eliminating virus circulation may be the cornerstone of establishing regional or national PED eradication programs.

• International conference on construction engineering and project management
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• 2017.10a
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• pp.138-145
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• 2017

As that experienced in other developing countries, Mongolia has already faced multilateral side issues for two decades due to economic growth that created Ger areas or internationally 'Slum', public housing and living conditions for low-income citizens, on the basis of rapid migration from rural areas to urban. Ger areas appear to be the main cause of environmental pollution problems and impending comfortable living conditions of the city's residents by covering more than half area of Ulaanbaatar city. Also, the spread of the Ger areas has many side issues such as prevention of urban development and unaesthetic. Most inhabitants of the areas are on low-incomes, and living in the detached houses or felt yurts (Ger) usually build within a low budget, by themselves or unprofessional people, and by using materials of poor quality. Therefore, Ger areas are an inevitable issue that requires effective, proper and immediate housing policy coordination under the government and even the housing market. Unfortunately housing policies, laws, and projects adopted by Mongolian government have shown inefficient results. The government housing policies, unlike other developing countries did not target low-income households' housing which is the priority issue for two decades. But only in 2014, the Long-term housing policy with the strategy for affordable housing initiated the housing policy for low-income households. This policy has five main broad directions such as redevelopment of Ger area, the land readjustment, public rental housing, new settlements and new city and reconstruction for old apartments, which are rather general and would require tremendous financial resources if each of the directions is implemented simultaneously without prioritization. Therefore this research aims to suggest the efficient and adequate housing policy direction for the low-income households in Ger area based on achievement of other developing countries' strategies, performances and generic characteristic with explanatory models. Also, this research adopts a literature analysis method that uses various research reports, related papers in domestic and international journals, and theses by experts, researchers, public institutions, and agencies.

• Korea Trade Review
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• v.48 no.2
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• pp.27-43
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• 2023

The maritime industry is playing an increasingly vital part in global economic expansion. Specifically, the Baltic Dry Index is highly correlated with global commodity prices. Hence, the importance of BDI prediction research increases. But, since the global situation has become more volatile, it has become methodologically more difficult to predict the BDI accurately. This paper proposes an integrated machine-learning strategy for accurately forecasting BDI trends. This study combines the benefits of a convolutional neural network (CNN) and long short-term memory neural network (LSTM) for research on prediction. We collected daily BDI data for over 27 years for model fitting. The research findings indicate that CNN successfully extracts BDI data features. On this basis, LSTM predicts BDI accurately. Model R2 attains 94.7 percent. Our research offers a novel, machine-learning-integrated approach to the field of shipping economic indicators research. In addition, this study provides a foundation for risk management decision-making in the fields of shipping institutions and financial investment.