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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Management Science and Financial Engineering
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Journal DOI :
The Korean Operations and Management Science Society
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Volume & Issues
Volume 16, Issue 3 - Nov 2010
Volume 16, Issue 2 - Sep 2010
Volume 16, Issue 1 - May 2010
Selecting the target year
Competition among Firms in Digital Convergence era
Yoo, Byung-Joon ; Lim, Hyun-Young ;
Management Science and Financial Engineering, volume 16, issue 2, 2010, Pages 1~15
Digital convergence which means the convergence of industry areas related to digital technologies is an important phenomenon in business, which will decide the fates of firms in the near future. The only firms which can create synergy effects from digital convergence are expected to be the winners in the fierce competition of digital convergence era. In our analysis, we examine the strategy of an integrated firm which has businesses in two different industry areas which are related to each other. By using a game theoretical model, we show how the integrated firm can win over two single separated firms which have business in only one industry area each by leveraging the two businesses the integrated firm has. In our welfare analysis, we also show that this convergence may be even beneficial to consumers, which seems counter-intuitive to social concerns about anti-competitive behaviors by integrated firms. Additionally, we study comparison between industry convergence and product convergence.
Customer Churn Identifying Model Based on Dual Customer Value Gap
Hou, Lun ; Tang, Xiaowo ;
Management Science and Financial Engineering, volume 16, issue 2, 2010, Pages 17~27
The customer churn and the forecast of customer churn have been important research topics for a long time in the academic domain of customer relationship management. The customer value is studied to construct a gap model based on dual customer values; a basic description of customer value is given, then the gaps between products and services in different periods for the customers and companies are analyzed. The main factors that influence the perceived customer value are analyzed to define the "recognized value gap" and a gap model for the dual customer value is constructed. Based on the dual customer gap a con-ceptual model to determine potential churn customers is proposed in the paper.
User-Created Content Recommendation Using Tag Information and Content Metadata
Rhie, Byung-Woon ; Kim, Jong-Woo ; Lee, Hong-Joo ;
Management Science and Financial Engineering, volume 16, issue 2, 2010, Pages 29~38
As the Internet is more embedded in people's lives, Internet users draw on new Internet applications to express themselves through "user-created content (UCC)." In addition, there is a noticeable shift from text-centered contents mainly posted on bulletin boards to multimedia contents such as images and videos on UCC web sites. The changes require different way of recommendations comparing to traditional products or contents recommendation on the Internet. This paper aims to design UCC recommendation methods with user behavior data and contents metadata such as tags and titles, and compare performances of the suggested methods. Real web logs data of a major Korean video UCC site was used to empirical experiments. The results of the experiments show that collaborative filtering technique based on similarity of UCC customers' preferences performs better than other content-based recommendation methods based on tag information and content metadata.
A Comparative Study on Mis Research at Mainland China and Abroad (2002~2007)
Shao, Peiji ; Wang, Yiwen ; Tao, Zongcong ;
Management Science and Financial Engineering, volume 16, issue 2, 2010, Pages 39~51
Based on the literatures about MIS published in Mainland China and foreign journals from 2002 to 2007, this paper compares and analyzes the various research topics, research methods and the distribution of publication in MIS research. It brings forward three aspects of differences between the domestic and foreign MIS research and gives some suggestions to advance domestic research.
Determining Absolute Interpolation Weights for Neighborhood-Based Collaborative Filtering
Kim, Hyoung-Do ;
Management Science and Financial Engineering, volume 16, issue 2, 2010, Pages 53~65
Despite the overall success of neighbor-based CF methods, there are some fundamental questions about neighbor selection and prediction mechanism including arbitrary similarity, over-fitting interpolation weights, no trust consideration between neighbours, etc. This paper proposes a simple method to compute absolute interpolation weights based on similarity values. In order to supplement the method, two schemes are additionally devised for high-quality neighbour selection and trust metrics based on co-ratings. The former requires that one or more neighbour's similarity should be better than a pre-specified level which is higher than the minimum level. The latter gives higher trust to neighbours that have more co-ratings. Experimental results show that the proposed method outperforms the pure IBCF by about 8% improvement. Furthermore, it can be easily combined with other predictors for achieving better prediction quality.
A Study of Consumer Loyalty on Instant Messaging Services
Kim, Sun-Tae ; Kim, Jong-Woo ;
Management Science and Financial Engineering, volume 16, issue 2, 2010, Pages 67~80
This study is focused on instant messaging service (IMS) providers' efforts to maintain a steadfast group of consumers who are willing to continuously use one service without switching to another. Various factors, carefully selected to reflect the unique features of instant messaging, were tested to verify their relationship with consumer loyalty. The results suggest that consumer loyalty of IMS users is most significantly affected by trust and perceived reputation a consumer has on the provider of IMS. Network externality, or the size and proximity of relationships formed through an IMS, also proves to have effect on consumer loyalty. Consumer loyalty in IMS users of different age or different internet usage is affected differently by each factor.
The Impact of Multi-dimensional Trust for Customer Satisfaction
Choi, Jae-Won ; Sohn, Chang-Soo ; Lee, Hong-Joo ;
Management Science and Financial Engineering, volume 16, issue 2, 2010, Pages 81~97
Trust is one of the most important aspects of the relationship between retailers and consumers in e-commerce. Users may have concerns about transaction security or personal information leakage when they engage in transactions over the Internet. It can be difficult to attract customers if the retailers or service providers cannot establish trust with their customers. There have been many studies of trust-building mechanisms between customers and e-storefronts. However, little work has been done on identifying the relationships between customer satisfaction, purchase intention, and trust. In addition, trust building occurs in the pre- and post-purchase phases of an e-commerce transaction, as well as gradually over repeated transactions. Thus we distinguish between cue-based trust and experience-based trust. The objective of this study was to explain the impact of trust on customer satisfaction and purchase intention in relation to e-commerce sites from the perspective of a multi-dimensional concept of trust. We surveyed 350 undergraduate students and obtained 331 responses for analysis. The result of our analysis showed that cue-based trust has a positive relationship with trust based on experience. Although the two concepts of trust have positive relationships with satisfaction, the path coefficient of trust based on experience was higher than that of cue-based trust. In addition, the purchase intention mediates the relationship between cue-based trust and experience-based trust.
Firm Size and Different Behaviors in IT Investment Decisions
Shim, Seon-Young ; Lee, Byung-Tae ;
Management Science and Financial Engineering, volume 16, issue 2, 2010, Pages 99~114
The influencing factors of large-scale IT investment decisions are rarely investigated in an empirical perspective. We find out different behaviors in IT investment decisions according to the size of organization. Large scale IT-investment decisions (e.g. system downsizing) can be the outcome of decision-makers' motivation to adopt and control new IT systems- However, this phenomenon is salient in the large-sized organization rather than small-sized ones. Based on our investigation, we predict general IT decision-making behaviors in organizations when making IT investment decisions.
The Impact of Mobile Technology Paradox Perception and Personal Risk-Taking Behaviors on Mobile Technology Adoption
Chae, Myung-Sin ; Yeum, Dae-Sung ;
Management Science and Financial Engineering, volume 16, issue 2, 2010, Pages 115~138
People acknowledge that mobile technology has improved their lives in terms of convenience, flexibility, connectedness, and new freedom of choice. However, as people increase usage of technology, they may become frustrated, challenged, annoyed, and irritated with it. This is the main characteristic of mobile technology paradoxes. Once technology gets into people's daily life, which it already has, people will look for a way to minimize the dependency on the technology, as well as finding a way to use the technology to improve the quality of their life. The focus of this study is to understand the mobile technology paradoxes and to develop coping strategies. As mobile technology is already a part of people's daily life, it is inevitable that people need to utilize technology as part of their lifestyles. This study developed a research model regarding the relationship between mobile technology perception and choice of coping strategies, including personal risk propensity as a mediating factor. Discussion on the importance of the technology paradoxes for developing mobile solution and services from the customers' perspectives followed after hypotheses testing.