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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean Management Science Review
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Journal DOI :
The Korean Operations and Management Science Society
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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
A Study on Developing Competency Model of Techno Leadership
Park, Bum Joo ; Lee, Hae Jun ; Shin, Wan Seon ;
Korean Management Science Review, volume 32, issue 2, 2015, Pages 1~14
DOI : 10.7737/KMSR.2015.32.2.001
The importance of technical innovation is increasing gradually in accordance with the life cycle of technology being shortened and the convergence being accelerate. This thesis aims to present the Framework of Competency Model of Techno Leadership capable of utilizing in promoting R&D (Research and Development) Leaders systematically by the technology based enterprise. The characteristic of core behavior necessary for Techno Leaders has been sorted out through the literature investigation and the analysis course of meaning, etc., the competency model of Techno Leadership has been deducted by analyzing the relation with MOT (Management of Technology) capacity being common skill of task necessary for Techno Leaders and the characteristic of behavior based on this through the questionnaire survey. The possibility of application in the field as well has been verified by applying the developed competency model in the actual field of enterprise. The competency model of techno Leadership developed in this research may be utilized in the direction establishment for the promotion of Techno Leadership in the enterprise or laboratory, especially, if would be effective to self-diagnose the core competency necessary for R&D manpower to be grown as the Techno leader in the IT oriented enterprise and to establish the improvement direction.
A Study on Applying Social Network Centrality Metrics to the Ownership Networks of Large Business Groups
Park, Chan-Kyoo ;
Korean Management Science Review, volume 32, issue 2, 2015, Pages 15~35
DOI : 10.7737/KMSR.2015.32.2.015
Large business groups typically have central firms through which their controlling families establish (or acquire) new firms and maintain control over other member firms. Research on corporate governance has developed metrics to identify those central firms and investigated an impact of the centrality on ownership structure and firm's financial performance. This paper introduces centrality metrics used in social network analysis (SNA) to measure how crucial a role each firm plays in the ownership structure of its business group. Then, the SNA centrality metrics are compared with the metrics developed in corporate governance field. Also, we test the relationship between the SNA centrality metrics and firm's value. Experimental results show that the SNA centrality metrics are closely correlated with the centrality metrics used in corporate governance and are significantly correlated with firm's value.
A Study on A method to Evaluate Market Dominance Transfer through Bundling Services in a Telecommunication Market
Shin, Minsoo ; Kim, Iljung ;
Korean Management Science Review, volume 32, issue 2, 2015, Pages 37~50
DOI : 10.7737/KMSR.2015.32.2.037
The number of contracts for bundling services in a domestic telecommunication market records 1.3 miilion as of the first half year in 2007, and steadily increased to 8.97 million in 2010, to 12.76 million in 2013. In 2014, 70.4% of telecommunication service consumers are found to subscribe to bundling service. Bundling services provide consumers with benefits such as price discount, convenience, increase ARPU. However, a market dominant player in a specific market may transfer its market power to another market by selling bundling services. SSNIP has been adopted to provide a market definition. However, SSNIP is not suitable to measure the effect of market power transition through bundling services because SSNIP cannot measure the effect of changeover sales of bundling services. Thus, in this study, we have investigated the effect of market power transition through bundling services reflecting market power effect and quality upgrade using Gross Upward Market Power Pressure Index metho and reviewed UPP and derivative UPP models.
Relationship between Creativity and Performance in Government-funded Research Institute
Park, Daesig ; Cho, Keuntae ;
Korean Management Science Review, volume 32, issue 2, 2015, Pages 51~68
DOI : 10.7737/KMSR.2015.32.2.051
The objective of this study is to empirically examine the relationship between creativity and performance in 10 government- funded research institutes of industrial science and technology. In order to analyze the relationship, the institutes are categorized into the high performance group and the low performance group based on research paper and patents The study uses discriminant analysis to identify the factors causing the difference between the two groups. The results show that there is no significant difference of individual creativity between the two groups whereas there is significant difference of group creativity and organization creativity. The study suggests that performance of government-funded research institutes depends on group and organizational creativity.
Estimating Heterogeneous Customer Arrivals to a Large Retail store : A Bayesian Poisson model perspective
Kim, Bumsoo ; Lee, Joonkyum ;
Korean Management Science Review, volume 32, issue 2, 2015, Pages 69~78
DOI : 10.7737/KMSR.2015.32.2.069
This paper considers a Bayesian Poisson model for multivariate count data using multiplicative rates. More specifically we compose the parameter for overall arrival rates by the product of two parameters, a common effect and an individual effect. The common effect is composed of autoregressive evolution of the parameter, which allows for analysis on seasonal effects on all multivariate time series. In addition, analysis on individual effects allows the researcher to differentiate the time series by whatevercharacterization of their choice. This type of model allows the researcher to specifically analyze two different forms of effects separately and produce a more robust result. We illustrate a simple MCMC generation combined with a Gibbs sampler step in estimating the posterior joint distribution of all parameters in the model. On the whole, the model presented in this study is an intuitive model which may handle complicated problems, and we highlight the properties and possible applications of the model with an example, analyzing real time series data involving customer arrivals to a large retail store.
OHSAS Practices Analysis : A Case Study using Audit Results
Park, Dong-Joon ; Kang, Byung-Hwan ; Kim, Ho-Gyun ;
Korean Management Science Review, volume 32, issue 2, 2015, Pages 79~89
DOI : 10.7737/KMSR.2015.32.2.079
The firms with OHSAS (Occupational Health and Safety Management System) registration should be audited every six months and they have to be reregistered every three years by a third party. In our article audit data were collected from the audit processes of fifty four firms that OHSAS 18001:2007 was implemented and audited by LRQA (Lloyd's Register Quality Assurance). Fifty four firms are largely classified as four categories: civil engineering and construction industry, metal and heavy industry, chemical industry, and other industries including electric, electronic, food, and services. Especially the minor conformity data are analyzed by statistical methods to find out the relationship between four categories of 54 firms and the average number of minor nonconformities. The most frequently appeared minor nonconformities among sub-requirements of OHSAS 18001:2007 are investigated and the reasons for minor nonconformities are specifically explained. The average number of minor nonconformities of firms before and after OHSAS 18001:2007 registration are compared to understand the maturity of OHSAS implementation. Some comments and suggestions are provided for OHSAS to be effectively implemented to the firms if revision is necessary.
An Empirical Analysis of the Characteristics of Acquiring Manufacturing Firms in Korea : The Focus on Environmental Factors and Firm Performance
Lee, Younsuk ; Park, Soohoon ;
Korean Management Science Review, volume 32, issue 2, 2015, Pages 91~109
DOI : 10.7737/KMSR.2015.32.2.091
The M&A of firms has been emerged as the effective means of fast diversification and growth in dynamic environment. However, the empirical research about M&A in Korea has not been implemented rich due to the difficulty of obtaining M&A data. In this research, we empirically investigate the relationships among M&A, environment and firms' performance focused on Korean manufacturing firms, understanding the current practice of M&A in Korea. We use the Manufacturing Productivity Panel Survey Data, which are collected by Korea Productivity Center in 2013. The sample size is 575 and the sample is divided into M&A group and non-M&A group. We conduct logit analysis with the independent variables of environment factors (munificence, dynamic, uncertainty), and firms' performance (sales growth, ROS, labor productivity and Inventory turnover), and dependent variable of M&A group or non M&A group. The results show that M&A is closely related to environment feature and firm performance: M&A firms are likely to be the higher munificence and dynamic and the lower sales growth and higher profitability than non-M&A group. In addition, we also examine the characteristics of firms by M&A types (competitors, customer/supplier and firms from unrelated industry). These results imply that if firms confront the pressure of uncertainty (dynamic) and the lower growth, they tend to choose M&A. Futhermore, to profoundly understand the behavior of firms about M&A, it is required to classify the M&A firms by merge types.
Investigating the Effect of Both Team Diversity and Task Difficulty on Team Creativity : Multi-Agent Simulation Approach
Chae, Seong Wook ; Seo, Young Wook ; Lee, Kun Chang ;
Korean Management Science Review, volume 32, issue 2, 2015, Pages 111~124
DOI : 10.7737/KMSR.2015.32.2.111
In the management literature, it has been widely accepted among both researchers and practitioners that the level of team creativity is significantly related to the organizational performance. Besides, researchers posited with confidence that team diversity and task difficulty would affect team creativity through team members' activities of exploration and exploitation. However, empirical approaches to proving this belief suffered from lack of real data and proper methods as well. To tackle the research void like this, we propose a multi-agent simulation (MAS) mechanism. By adopting a set of parameters which validity were proven in the related literature, we conducted a series of experiments in the environment of the MAS platform named NetLogo. There sults suggest that managers can differentiate team diversity strategies according to task difficulty. In the case of a difficult task, managers need to increase team diversity so that their teams can maximize team creativity through rigorous exploration and exploitation. It is desirable to maintain an average level of team diversity when performing an easy task.
Dynamic Interaction of Performance Information and Word-of-Mouth in Film Industry
Lee, Wonhee ;
Korean Management Science Review, volume 32, issue 2, 2015, Pages 125~143
DOI : 10.7737/KMSR.2015.32.2.125
When studying the film industry, researchers have seldom addressed the dynamic interaction between marketing information and word of mouth in the motion picture industry mainly because of the limitation of traditional research methodologies. This study explores integration and competition among important variables influencing on audience's choice on movie selection, particularly by using a new method of agent-based modeling including competitive environment. Decision process of moviegoer composed of transition probability based on multinomial logit model, considering marketing and box-office information, critique, and word of mouth from other moviegoers. After validating the fitness of market share among released movies, this study conducted a set of simulation experiments considering several variables such as market size, change of weight between variables, and movie performance under competition. Propositions are derived from the simulation results is also suggested for future research.