A Cross-National Market Segmentation of Online Game Industry Using SOM

Lee, S., Suh, Y., Kim, J., Lee, K, A Cross-National Market Segmentation of Online Game Industry Using SOM, Expert Systems with Applications, 27:559-570, 2004. – SCIE, ISSN: 0957-4174. pdf

Abstract

To compete successfully in today’s global online game markets, a cross-national analysis for market segmentation is becoming a more important issue, by which companies are able to understand their domestic and foreign loyal customers and concentrate their limited resources into the target customers. However, previous research methodologies for market segmentation were difficult to be conducted on a cross-national analysis because they were performed within a nation. Additionally, the traditional clustering methodologies have not provided a unique clustering nor determined the precise number of clusters. The purpose of our research is to develop a new methodology for cross-national market segmentation. We propose a two-phase approach (TPA) integrating statistical and data mining methods. The first phase is conducted by a statistical method (MCFA: multi-group confirmatory factor analysis) to test the difference between national clustering factors. The second phase is conducted by a data mining method (a twolevel SOM) to develop the actual clusters within each nation. A two-level SOM is useful to effectively reduce the complexity of the reconstruction task and noise. Especially, our research tested the model with Korean and Japanese online game users because they are the frontier of global online game industries.

Keywords

Self-organizational map; Cross-national analysis; Online game; Market segmentation

A Structural Equation Modeling of the Internet Acceptance in Korea

Kim, B., Park, S., Lee, K., A Structural Equation Modeling of the Internet Acceptance in Korea, Electronic Commerce: Research and Applications, 6:425–432, 2007. SSCI. ISSN 1567-4223. pdf

Abstract

The objective of this study is to develop and test an integrated conceptual model of the Internet acceptance. Based on the two dominant theoretical paradigms – the theory of reasoned action (TRA) and the technology acceptance model (TAM) – we propose a model of the Internet acceptance to investigate the relationship between external variables such as individual differences, task characteristics and management support, and individual acceptance of the Internet. The model is tested using data gathered from 374 end users of the Internet in Korean firms and data analysis is conducted using a structural equation modeling with LISREL. Significant relationships are found between experience and usefulness, between experience and ease of use, and between ease of use and usefulness. Organizational support is found to influence usefulness, ease of use and subjective norm. We also observe that actual usage is not influenced by subjective norm, but significantly influenced by experience, usefulness and ease of use. This result implies that individual acceptance of the Internet is significantly related to external factors such as experience, task characteristics and organizational characteristics rather than beliefs

Keywords

Internet acceptance, Technology acceptance model, Self-efficacy, Experience, Task characteristic, Organizational support

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