Journal of the military operations research society of Korea
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v.35
no.3
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pp.157-176
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2009
The main purpose of this study is to investigate the relationships among individual career management behavior, organizational career management help and organizational commitment based on psychological contract. The research model takes multi-dimensional perspective. The empirical study has been done using data collected from 360 military officers. The research findings are as follows: First, individual career management behavior is directly linked to the experience of organizational career management help. Second, both individual and organizational career management behaviors are connected to organizational commitment. Especially, career help from military organizations is closely related to affective commitment. Third, psychological contract fulfillment plays a key role in mediating the relationship between organizational career management help and affective commitment. These findings provide some support for the dimensional effects of individual career management behavior on organizational career management, psychological contract fulfillment and organizational commitment in military sector.
Journal of the Korea Academia-Industrial cooperation Society
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v.17
no.2
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pp.635-641
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2016
The aim of this study was to suggest characteristics and strategies of urban development focused on Transit Oriented Development (TOD). For this study, the relevant concepts of TOD were reviewed, and the types of urban development based on TOD was surveyed. As a case study, 7 TOD projects implemented in advanced countries were analyzed in the terms to change in urban spatial structure, urban balance development and connection of public transportation. The conclusions are as follows. First, the regal system and the support mechanism for success of the public-private partnership are essential for TOD. Second, the role of public sector leads planning, implementation and management should be emphasized in the development process, and mitigation of the development density and revision of a municipal ordinance for promoting TOD are necessary. Third, a public transportation plan and land-use plan in the downtown areas should be integrated, and the enlargement of the urban infrastructure through public assets by the local authority is essential.
Power loss reduction and total harmonic distortion(THD) minimization are two important goals of improving three-level inverters. In this paper, an optimized pulse width modulation (PWM) strategy that can reduce switching losses and balance the neutral point with an optional THD of three-level neutral-point-clamped inverters is proposed. An analysis of the two-level discontinuous PWM (DPWM) strategy indicates that the optimal goal of the proposed PWM strategy is to reduce switching losses to a minimum without increasing the THD compared to that of traditional SVPWMs. Thus, the analysis of the two-level DPWM strategy is introduced. Through the rational allocation of the zero vector, only two-phase switching devices are active in each sector, and their switching losses can be reduced by one-third compared with those of traditional PWM strategies. A detailed analysis of the impact of small vectors, which correspond to different zero vectors, on the neutral-point potential is conducted, and a hysteresis control method is proposed to balance the neutral point. This method is simple, does not judge the direction of midpoint currents, and can adjust the switching times of devices and the fluctuation of the neutral-point potential by changing the hysteresis loop width. Simulation and experimental results prove the effectiveness and feasibility of the proposed strategy.
Under the on-going evolution of the COVID-19 pandemic, estimating the economic impact of the pandemic is highly uncertain and challenging. This situation makes it difficult for policymakers, governors, and economic entities to formulate appropriate responses and decision makings. To provide useful information about the effect of the COVID-19 pandemic on the Korean economy, this study examined macroeconomic impact analysis stemming from the pandemic shocks with different scenarios for the Korean economy. Based on three scenarios using the growth rate of 2020 GDP and consumer expenditure patterns, the 2021 GDP by industry sector was forecast with two new approaches. First, the recovering process of the Korean economy from the shock was analyzed by applying a Flex-IO method. Second, a new forecasting approach combined with an IO coefficient matrix was applied to forecast the future GDP changes. The findings of this study are summarized as follows: First, the total GDP growth rate under the Pessimistic Scenario demonstrates less rebound from the shock than that of the Base Scenario. Second, agriculture, culture, and tourism-related sectors that are suffering from the severe losses of COVID-19 showed lower resilience than other different industries. Third, information and communications technology (ICT) industry maintains a stable growth trend and is expected to take the leading role for the Korean economy in the post-COVID-19 and the Industry 4.0 eras. The findings deliver that it needs to analyze how government expenditure responding the shock into the forecasting model, which can be more useful and reliable to simulate the resilience from the pandemic.
As global competition for green car, that is environmentally friendly car, is getting tougher, the governments and the related industries are putting their core efforts in its diffusion. However, the green car sales are disappointing so far. To overcome the gridlock, it is necessary to develop concrete analytical framework to understand the diffusion process. Based on causal loop analysis from the previous work, we have identified main variables and relationships of them in the diffusion process and developed a stock-flow diagram and mathematical formula for the main components. The model would be applied for further quantitative simulation on the diffusion process of green car and other innovative goods as well. Also, we have suggested constructive insights for the policy makers and for the related industries. First, it is important to increase consumers' willingness to consider through marketing and word of mouth to accelerate the diffusion process. Second, in the perspective of the industry, the market share of green car should be increased at the earliest possible stage and this could be done by enhancing each components of green car attractiveness(e.g. price, driving range, social infra). Third, companies should develop a balanced investment between consumer and technology sector through a flexible financial policy. Fourth, the government continuously has the role of investing in the related R&D and social infra building. We expect the green car diffusion model and related formula from the research can provide meaningful tools to analyze the diffusion process of other new and innovative goods based on its deep researched literature review.
This study was to examine the degree of market orientated effort by hospital type and size,. and analyzed the moderating effect of environments between market orientation and it's performance. First, there was no significant differences by hospital type, such public hospital, university hospital, and private hospital. However, the orders of market orientation implementation was university hospital. private hospital, and public hospital This finding suggest that university hospital and public hospital, should be market-oriented, or customer-oriented more now, relatively. Second, there were no significant differences in marketing as management policy by hospital types, i.e. public, university or private sector hospitals. However, as to the intensity of the implementation of the market-oriented approach, private hospitals came first, followed by the university hospitals, then the public ones. This finding suggests that university and public hospitals should be more market or customer oriented to compete in the market. Third, only the competitive environment does active moderating roll on hospital performance. The competitive environmental factor forces the organization to be more market oriented. This means the more you are positively situated in the competitive environment, the more you are looking for a market oriented approach. You become more aware of the value of customers and you become more focused on the customer satisfaction and thus become more patient oriented in every facet of decision making. And market oriented hospitals recognize the importance of utilization of high tech medical treatment skills and equipment in patient care. Fourth, according the analysis, market oriented effort gives more influence on hospital performance than the environmental factors. This means that the market oriented effort should become a culture of the hospital which seeks to out distance themselves from its competitors.
The objective of this study is to establish a theoretical framework of factors and strategies for success , by probing into design management strategies and the resulting product development details of firms from many parts of the world that improved their images and competitiveness through industrial design. As a means for a company to successfully develop products and to survive, strategies for successful product development were unfolded by many leading businesses of industrial design, whose methods and strategies were respectively unique. International companies such as Philips, Sony, Braun, Ford, and Alessi employed industrial design to not only renew their brand perceptions, but also added values to human life by embedding exclusive designs that customers prefer in their products. They have used design as a business strategic tool, whose elemental processes are, planning, organizing, directing, and controlling. In conclusion, the successful strategies of the leading global companies' design management and product development share the following First, these companies seek design strategies that foresee upcoming changes and are ahead of their time. Second, the CEO is aware of the importance of design, has an appreciative eye for design, and puts in effort into supporting and developing his or her design sector. Third, the director is provided with the conditions in which he or she can take control of one's tasks, and has the abilities and qualities to provide visions for the future. Fourth, the product development team uses original and logical processes and is highly organized. Fifth, the design organization effectively utilizes necessary experts of internal and external company. Sixth, the firm produces innovative products that meet the customers' demand and predict the future. Seventh, the products developed shall employ cutting-edge technologies and are new and original. Eighth, the product must have an identity as a product that represents the company.
Journal of Family Resource Management and Policy Review
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v.12
no.3
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pp.119-145
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2008
This study was designed to verify the influence of mothers on their young adults in pro-environmental consuming consciousness and behavior. The compiled data are based on the responses of questionnaires from 278 young adults who reside in Seoul, Korea. The data were analyzed by frequency, standard deviation, mean, unitary dispersion, rank revolution analysis, analysis of variance (ANOVA), and multiple regression analysis by SPSS 14.0K for Windows. This study has discovered the following: First. A mother's pro-environmental consuming behavior is one of the most important factors significantly influencing a young adult's consciousness and behavior. Second. A friendly and positive consciousness about the environment enhances pro-environmental consuming behavior. A close inter-relationship exists between consciousness and behavior. However, some significant discrepancy was found between pro-environmental consuming consciousness and pro-environmental consuming behavior; that is, the level of pro-environmental consciousness was higher than the level of pro-environmental behavior. Third. Sensitivity to environmental information influenced pro-environmental consumption consciousness and behavior. Female students are more concerned about and sensitive to environmental matters than are male students. Fourth. Among the subordinate dependent variables, recycling behavior is most influenced by independent variables. Among the pro-environmental consuming behavior sector, a mother's disposal behavior exerts the most influence on the young adult's behavior. In the results of this study, it is pointed out that it is absolutely necessary fur young adults to bring up their practice level of pro-environmental purchase and consuming behaviors, and it is advised that appropriate and relevant education programs should be developed.
This theoretical model makes three contributions to the study on economic growth and environment. First, emissions are generated during final goods production and technology accumulation. Second, this paper assumes that pollution is directly increasing with increase in final goods output or in consumption. Third, we use reproducible factors associated with labor and capital input in production function and assume constant return to scale in reproducible factors. From growth rate condition we derived, increases in reproducible factors, increases in productivity of either the abatment or technology sector, and decrease in social discount rate would increase the sustainable growth rate. In empirical test, the environmental degradation did not effect the economic growth rate though other factors satisfied the growth rate condition equation. However, through the reinterpretation of this result, we found indirectly the fact of that an inverted U relationship between air pollution and economic growth rate would exist in 20 OECD countries using a panel data for the period of 1986~1995.
The rise of K-Pop in the latecomer environment is unusual. There is little research on K-Pop from the catch-up perspective though it would yield some insight into a strategic direction of creative industries in the latecomer environment. Thus, this study aims to compare the firm capability, market development, and product strategy of K-Pop firms with ones of manufacturing firms during the catch-up period. It reveals first that K-Pop firms developed project execution capability to carry out discrete projects effectively by adopting in-house (vertical) system in music production and increasing the size of firms. Second, they pursued global market and utilized the window of opportunities based on a proven music genre. Third, K-Pop firms pursued the incremental innovation in the product development. Since these characteristics have many similarities with the catch-up strategy in the manufacturing sector, Korean catch-up experience could provide valuable insight into the development of creative industries in Korea.
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