Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Management Science Review
Journal Basic Information
Journal DOI :
The Korean Operations and Management Science Society
Editor in Chief :
Volume & Issues
Volume 32, Issue 4 - Dec 2015
Volume 32, Issue 3 - Sep 2015
Volume 32, Issue 2 - Jun 2015
Volume 32, Issue 1 - Mar 2015
Selecting the target year
Exploring Prospective Research Areas in UI/UX through the Analysis of Patents
Lim, Chaeguk ; Yun, Dooseob ; Park, Inchae ; Park, Gwangman ; Koh, Soonju ; Yoon, Byungun ;
Korean Management Science Review, volume 32, issue 4, 2015, Pages 1~18
DOI : 10.7737/KMSR.2015.32.4.001
On UX/UI fields, understanding emerging technology is important for preoccupancy of a future market. Most of emerging field searching methods are qualitative methods. However, it is suitable for large companies to adduce its milestone, not for small enterprises. Thus, this study aims at purposing the improvement of utilizability for research field searching processes. We draw core patents with modified patent citation data, apply the Girvan-Newman clustering method based on bibliographic coupling patent relationship and then, draw emerging technology research UX/UI fields. Finally, the results were validated in comparison with a report on emerging research.
A Linear Programming Model for Production Planning of Photovoltaic Materials
Lee, Seon-Jong ; Lee, Hyun Cheol ; Kim, Jaehee ;
Korean Management Science Review, volume 32, issue 4, 2015, Pages 19~28
DOI : 10.7737/KMSR.2015.32.4.019
This study presents a mathematical programming model to develop production planning in the manufacturing processes for photovoltaic silicon ingots and wafers. The model is formulated as a linear programming model that maximizes total growth margin, which is composed of production cost, inventory cost, shortage cost, and sales profit while considering the constraints associated with the production environments of photovoltaic materials. In order to demonstrate the utility of the model for production planning, we run operations for a planning horizon of a year for a case study. When the primary results of this mathematical programming are compared with the historical records, the model could have resulted in the considerable increase of the total growth margin by effectively reducing inventory cost if a decision maker had employed the model as a decision support system with perfect information for sales demand.
The Word-of-Mouth Effects from Purchasers and Non-purchasers
Lee, Yeong-Ran ; Park, Sang-June ;
Korean Management Science Review, volume 32, issue 4, 2015, Pages 29~43
DOI : 10.7737/KMSR.2015.32.4.029
Word-of-Mouth (WOM), which is the unpaid spread of a positive marketing message from person to person, has been shown to be even more effective in influencing purchase decisions than traditional advertising channels. The effects of WOM might be different by types of persuaders (purchasers vs. non-purchasers), however, the current body of research has not given attention to the differential effects of WOM. This study focuses on whether or not potential customers are influenced by the WOM from non-purchasers as well as from purchasers, and it investigates if the impacts of WOM from non-purchasers are different with those from purchasers. Based on conjoint analyses, it concludes that potential customers are affected by the communication with non-purchasers as well as with purchasers but the impacts of non-purchasers are not greater than those of purchasers.
Analysis on Key Success Factors for Partner Relationship Management
Park, Chulsoo ; Chang, Byungman ; Kang, Pilsung ;
Korean Management Science Review, volume 32, issue 4, 2015, Pages 45~56
DOI : 10.7737/KMSR.2015.32.4.045
Partner relationship management (PRM) refers to processes and methodologies associated with managing the relationship between corporations and their partners. Recently, the importance of PRM has been increasingly emphasized, and it is considered as a core competitive factor for firms whose sales heavily rely on the intermediate distributor. In this paper, we identify key success factors for PRM system based on literature review on CRM system and interviews with domain experts, and prioritize them from two different perspectives, firms and partners, based on analytical hierarchy process. Partners responded that trust-building between firms and partners, quality of system, and satisfaction level for information system have high priorities, while firms responded that quality of system, information share, and trust building between firms and partners. Identified factors and evaluated priorities can provide a strategic guideline when planning the PRM system building.
Performance Analysis on Trading System using Foreign Investors' Trading Information
Kim, Sunwoong ; Choi, Heungsik ;
Korean Management Science Review, volume 32, issue 4, 2015, Pages 57~67
DOI : 10.7737/KMSR.2015.32.4.057
It is a familiar Wall Street adage that "It takes volume to make prices move." Numerous researches have found the positive correlation between trading volume and price changes. Recent studies have documented that informed traders have strong influences on stock market prices through their trading with distinctive information power. Ever since 1992 capital market liberalization in Korea, it is said that foreign investors make consistent profits with their superior information and analytical skills. This study aims at whether we can make a profitable trading strategy by using the foreign investors' trading information. We analyse the relation between the KOSPI index returns and the foreign investors trading volume using GARCH models and VAR models. This study suggests the profitable trading strategies based on the documented relation between the foreign investors' trading volume and KOSPI index returns. We simulate the trading system with the real stock market data. The data include the daily KOSPI index returns and foreign investors' trading volume for 2001~2013. We estimate the GARCH and VAR models using 2001~2011 data and simulate the suggested trading system with the remaining out-of-sample data. Empirical results are as follows. First, we found the significant positive relation between the KOSPI index returns and contemporaneous foreign investors' trading volume. Second, we also found the positive relation between the KOSPI index returns and lagged foreign investors' trading volume. But the relation showed no statistical significance. Third, our suggested trading system showed better trading performance than B&H strategy, especially trading system 2. Our results provide good information for uninformed traders in the Korean stock market.
A Study on Multi-criteria Trade-off Structure between Throughput and WIP Balancing for Semiconductor Scheduling
Kim, Kwanghee ; Chung, Jaewoo ;
Korean Management Science Review, volume 32, issue 4, 2015, Pages 69~80
DOI : 10.7737/KMSR.2015.32.4.069
The semiconductor industry is one of those in which the most intricate processes are involved and there are many critical factors that are controlled with precision in those processes. Naturally production scheduling in the semiconductor industry is also very complex and studied by the industry and academia for many years; however, still there are many issues left unclear in the problem. This paper proposes an multi-objective optimization-based scheduling method for semiconductor fabrication(fab). Two main objectives are throughput maximization and meeting target production quantities. The first objective aims to reduce production cost, especially the fixed cost incurred by a large investment constructing a new fab facility. The other is meeting customer orders on time and also helps a fab maintain stable throughput through controlled WIP balancing in the long run. The paper shows a trade-off structure between the two objectives through experimental studies, which provides industrial practitioners with useful references.
Interaction Effect of Network Structure and Knowledge Search on Knowledge Diffusion
Park, Chulsoon ;
Korean Management Science Review, volume 32, issue 4, 2015, Pages 81~96
DOI : 10.7737/KMSR.2015.32.4.081
This paper models knowledge diffusion on an inter-organizational network. Based on literatures related to knowledge diffusion, the model considers critical factors that affect diffusion behavior including nodal property, relational property, and environmental property. We examine the relationships among network structure, knowledge search, and diffusion performance. Through a massive simulation runs based on the agent-based model, we find that the average path length of a network decreases a firm's cumulative knowledge stock, whereas the clustering coefficient of a firm has no significant relationship with the firm's knowledge. We also find that there is an interaction effect of network structure and the range of knowledge search on knowledge diffusion. Specifically, in a network of a larger average path length (APL) the marginal effect of search conduct is significantly greater than in that of a smaller APL.
Analysis of Users' Satisfaction Utility for Precipitation Probabilistic Forecast Using Collective Value Score
Yoon, Seung Chul ; Lee, Ki-Kwang ;
Korean Management Science Review, volume 32, issue 4, 2015, Pages 97~108
DOI : 10.7737/KMSR.2015.32.4.097
A Study on the Allocation and Engagement Scheduling of Air Defense Missiles by Using Mixed Integer Programming
Lee, Dae Ryeock ; Yang, Jaehwan ;
Korean Management Science Review, volume 32, issue 4, 2015, Pages 109~133
DOI : 10.7737/KMSR.2015.32.4.109
This paper considers the allocation and engagement scheduling of air defense missiles by using MIP (mixed integer programming). Specifically, it focuses on developing a realistic MIP model for a real battle situation where multiple enemy missiles are headed toward valuable defended assets and there exist multiple air defense missiles to counteract the threats. In addition to the conventional objective such as the minimization of surviving target value, the maximization of total intercept altitude is introduced as a new objective. The intercept altitude of incoming missiles is important in order to minimize damages from debris of the intercepted missiles and moreover it can be critical if the enemy warhead contains an atomic or chemical bomb. The concept of so called the time window is used to model the engagement situation and a continuous time is assumed for flying times of the both missiles. Lastly, the model is extended to simulate the situation where the guidance radar, which guides a defense missile to its target, has the maximum guidance capacity. The initial mathematical model developed contains several non-linear constraints and a non-linear objective function. Hence, the linearization of those terms is performed before it is solved by a commercially available software. Then to thoroughly examine the MIP model, the model is empirically evaluated with several test problems. Specifically, the models with different objective functions are compared and several battle scenarios are generated to evaluate performance of the models including the extended one. The results indicate that the new model consistently presents better and more realistic results than the compared models.
SNS Technology Contribution to B2C Channel Benefits
Son, Jin-Ryeom ; Han, Hyun-Soo ;
Korean Management Science Review, volume 32, issue 4, 2015, Pages 135~153
DOI : 10.7737/KMSR.2015.32.4.135
In this paper, we intend to understand distinguishable SNS technology contributions for B2C commerce. In order to theorize this, we draw upon Technology-to-Performance chain (TPC) theory to develop the model that could explain how the technology value of the SNS could be realizable. For the purpose of capturing SNS technology effect to B2C channel effectiveness, on the basis of TPC theory, personal productivity is selected as a performance variable instead of satisfaction from SNS usage. Accordingly, as the antecedents of personal productivity, two variables of locatability and timeliness are extracted to reflect Task-technology-fit (TTF) dimension of performance precursors. For the utilization dimension of TPC framework, convenience and recreation tendency of the personal traits in shopping are included as the precursors of SNS utilization in the sense of reflecting utilitarian and hedonic value of SNS adoption. Empirical validation is conducted with reference to promotion and sales event on Facebook, which is chosen as the typical SNS based B2C commerce scenario. The data analysis result provide useful insights to further investigate the firm's SNS usage potentials for business applications.
A Study on the Development and Application of Performance Evaluation Criteria for Co-op Programs in Universities: Focused on the Case of KOREATECH
Oh, Chang-Heon ; Om, Kiyong ;
Korean Management Science Review, volume 32, issue 4, 2015, Pages 155~173
DOI : 10.7737/KMSR.2015.32.4.155
Koreatech has adopted a long-term co-op program called IPP (Industry Professional Practice) to address problems in higher education of Korea since 2012, but it was anticipated to face many difficulties in implementing the program due to lack of relevant experiences in Korea. In this regard, a performance evaluation scheme was urgently required to judge the effectiveness of the Co-op program and improve the operational efficiency at the same time. This study aimed to develop comprehensive performance evaluation criteria for the co-op programs on the basis of Kirkpatrick's four-level performance evaluation model for training programs, and apply it to a real Co-op operation to test its feasibility. For this purpose, thorough review on the training program evaluation literature and in-depth analyses of overseas cases of co-op performance evaluation were conducted. Then, a set of Co-op performance evaluation criteria was developed and applied to the Koreatech's Co-op operation in 2013. Two Co-op student questionnaire surveys were administered before and after Co-op terms to measure students' reactions to the Co-op program (Level 1) and changes in participating students' attitudes and competencies (Level 2). In addition, employment rates of Co-op participating and non-participating students were compared (Level 4). The analysis findings showed that participating students were quite satisfied with their jobs and companies, and the Co-op program was effective to a certain degree at enhancing non-major competencies and attitudes to occupation of students. Together, the employment rate of Co-op participants, particularly in small- and medium-sized companies, grew significantly in comparison with that of non-participants. In the last part, several directions for improving the effectiveness of the Co-op programs were discussed.
Analysis on Determinant Affecting Open Innovation of Korean ICT Service Industry : Focusing on Network Service
Kim, Eung-Do ; Kim, Hongbum ; Bae, Khee-Su ;
Korean Management Science Review, volume 32, issue 4, 2015, Pages 175~192
DOI : 10.7737/KMSR.2015.32.4.175
Due to the emergence of open innovation driven by development of network service technologies and convergence in ICT service industry, It is necessary for ICT service firms to examine their capabilities for open innovation. The purpose of this paper is to empirically examine determinants affecting open innovation in Korean ICT service industry. In order to analyze, this paper uses logistic and multiple regression models based on survey data of Korean ICT service firms. Estimation results show that external network for collaboration is positive on the technological innovation activity regardless of the innovation type. Specifically, user networks are significant in all types of technology innovation, revealing that it is important to innovation activities of the ICT service firms.
Measuring the Dynamic Efficiency of Government Research Institutes in R&D and Commercialization by DEA Window Analysis
Lee, Seonghee ; Kim, Taesoo ; Lee, Hakyeon ;
Korean Management Science Review, volume 32, issue 4, 2015, Pages 193~207
DOI : 10.7737/KMSR.2015.32.4.193
Government-funded research institutes (GRIs) have played a pivotal role in national R&D in Korea. To achieve desired goals of GRIs with the limited R&D budget, their performance along with time needs to be measured and compared so that appropriate R&D policies can be formulated and implemented. This study measures the dynamic performance of GRIs from the efficiency perspective using the window model of data envelopment analysis (DEA). DEA is a non-parametric approach to measuring the relative efficiency of decision-making units (DMUs) with multiple inputs and outputs, and the DEA window model can capture the dynamic changes in efficiency of DMUs during multiple periods. The relative efficiency of GRIs is measured from the two perspectives: R&D and R&BD. Patents, papers, technology transfers are selected as outputs for R&D while compensated technology transfers and technology royalty are employed as outputs for R&BD. This study measures and compares the two types of performance of 20 Korean GRIs under the control of National Research Council of Science and Technology during the period of six years from 2008 to 2013. The results are expected to provide fruitful implications for national R&D policy making.
A Study on the Supplementary Service Adoption of Platform
Kim, Yongsik ; Park, Yoonseo ;
Korean Management Science Review, volume 32, issue 4, 2015, Pages 209~236
DOI : 10.7737/KMSR.2015.32.4.209
This study focuses on the network externality effect related to the platform supplementary services. This study designs the network externality of platform and suggests a supplementary service adoption model. Additionally, this study examines the moderating effect of demand forecasting for the platform. Using AMOS program, a structural equation modeling has been used to analyze the research model. The findings can be summarized as follows : First, we find out the structural relationship among the factors (usefulness, perceived value, purchase intention) affecting adoption of the supplementary services. Second, positive perception of platform flow can promote the platform interaction. Third, positive perception of present users based on platform can arouse friendly evaluation in the platform interaction. Fourth, loyalty to the platform brand can improve the perceived usefulness of supplementary services, but cannot lessen the resistance to supplementary service cost. In addition, the moderating effects of demand forecasting for the platform in the path leading from platform factors to supplementary service factors were identified. In conclusion, traditional brand strategy may be effective in platform marketing activities but the extent of performance in the strategy can appear to be quite different. Therefore, taking the relationship with network externality into consideration should be involved in the marketing strategy in platform.
Classifying and Analyzing the Creative Employment in Korea
Lee, Kyoungsun ; Park, Taezoon ; Chung, Kwanghun ;
Korean Management Science Review, volume 32, issue 4, 2015, Pages 237~254
DOI : 10.7737/KMSR.2015.32.4.237
The objective of this study is developing a classification scheme of the creative employment and analyzing trends of the creative employment in Korea. Many countries have pursued the creative economy to generate new jobs and tried to estimate the creative employment as a way to measure the creative economy. However, the definition of the creative employment is still ambiguous partly because it depends on the characteristics of diverse industries and the direction of economic policies that each country has. Therefore, we propose a classification scheme of the creative employment, which reflects the creative economy in Korea. Then, we examine how the creative employment changes in Korea. Our results show that the jobs requiring the highest level of creative skills increase stably and steadily over the years.