Munkee Choi

Why people use Twitter: social conformity and social value perspectives

Purpose – Based on social conformity and social value perspectives, the authors aim to empirically examine the critical role of social influences on Twitter user behaviour. Design/methodology/approach – An integrative structural model is developed to explain how social influences, which are divided into social conformity and social values, work with other salient factors such as the utilitarian and hedonic values to affect the use of Twitter. The partial least square method was used to verify the proposed model with usable data from 204 adult Korean Twitter users. Findings – Social conformity positively affects the frequent use of Twitter and it is mediated through perceived values such as the hedonic, utilitarian and social appearance values associated with Twitter use. While social appearance negatively affected the trustworthiness of information shared on Twitter, the social capital effect on Twitter use was insignificant. Research limitations/implications – This study has some limitations for general ...

Analysis of the Consumer Preferences toward M-Commerce Applications Based on an Empirical Study

In this paper, new concept of value proposition for m-commerce is set up based on the study on previous value propositions for m-commerce, and clustering a great number of m-commerce applications by 4 sectors. These 4-sector applications are evaluated by 17 detail propositions. Then these propositions are reorganized structurally by factor analysis, of which result can be used point for drawing perceptual map. This paper identifies the degree of importance in respective propositions through experimental analysis. These experimental analyses are able to hold up objectivity of research methods, and suggest multi-points of view. This result can be used for setting up m-commerce strategy. The implications of this paper are providing diagnostic information to design a new applications or devices. And concretizing value propositions for m-commerce make a operators clear in their decisionmaking

Factors affecting smart learning adoption in workplaces: comparing large enterprises and SMEs

The rapid diffusion of learning through smart devices has facilitated information acquisition and improved knowledge sharing. This study analyzes the adoption and diffusion of smart learning from the human resource development (HRD) managerial perspective, based on a modified technology acceptance model which reflects perceived risk (PR) and organizational innovativeness (OI). Further, the results of a comparative analysis on large enterprises and small and medium enterprises (SMEs) reveal that their adoption of smart learning differs. First, large enterprises emphasize perceived ease of use (PEOU) as a reason for adoption, while SMEs emphasize perceived usefulness (PU). Second, while OI affects both types of enterprises, PR is statistically significant only for large enterprises. Finally, mobility and interactivity, important features of smart learning, have different effects on PEOU and PU for the two types of companies. This analysis provides useful guidance for HRD managers, solution providers, and content providers for improving workplace learning and thus creating more value for companies.

Consumer's Privacy Concerns and Willingness to Provide Personal Information in Location-Based Services

Location-based services (LBS) are expected to provide more enhanced values utilizing consumers personal information such as location information, and profile information. However, in contrast to existing mobile applications, LBS could raise more severe consumers privacy concerns because of dynamically changing information such as location information could be more sensitive to consumer. In this context, this study proposes the research model that conceptualizes personal characteristics influencing consumers privacy concerns and investigates the relationship between perceived privacy concerns and willingness to provide personal information. Finally, the model tests moderating effects that makes differences in the strength of relation between personal characteristics and consumers privacy concerns. Data is collected by online survey and the model is verified by structural equation model.

Nature of potential mobile gamers' behavior under future wireless mobile environment

this paper, we formulated an extended TAM (technology acceptance model) specific to mobile game under Wibro environment, and empirically validated it in Korea by SEM (structural equation modeling). Since mobile games under Wibro environment might inherit the properties of game and those of mobile device, we extended TAM with perceived enjoyment, attractiveness, sacrifice, flow experience, and social norm. We collected 1011 usable respondents by on-line survey. Overall, the results uncovered that the effect of perceived ease of use, enjoyment, and social norm are remarkably mighty and usefulness does not influence an individuals attitude and intention to play mobile game under Wibro environment. In addition, we also found out that age work as a key modifier of acceptance of playing mobile games under Wibro environment. The implication and limitation of this study are discussed

Does External Knowledge Sourcing Enhance Market Performance? Evidence from the Korean Manufacturing Industry

Firms continuously search for external knowledge that can contribute to product innovation, which may ultimately increase market performance. The relationship between external knowledge sourcing and market performance is not well-documented. The extant literature primarily examines the causal relationship between external knowledge sources and product innovation performance or to identify factors which moderates the relationship between external knowledge sourcing and product innovation. Non-technological innovations, such as organization and marketing innovations, intervene in the process of external knowledge sourcing to product innovation to market performance but has not been extensively examined. This study addresses two research questions: does external knowledge sourcing lead to market performance and how does external knowledge sourcing interact with a firm’s different innovation activities to enhance market performance. This study proposes a comprehensive model to capture the causal mechanism from external knowledge sourcing to market performance. The research model was tested using survey data from manufacturing firms in South Korea and the results demonstrate a strong statistical relationship in the path of external knowledge sourcing (EKS) to product innovation performance (PIP) to market performance (MP). Organizational innovation is an antecedent to EKS while marketing innovation is a consequence of EKS, which significantly influences PIP and MP. The results imply that any potential EKS effort should also consider organizational innovations which may ultimately enhance market performance. Theoretical and practical implications are discussed as well as concluding remarks.

Five year trends of ICT convergence based on KIPO issued patents

The goal of this study was to examine how ICT technologies are converging with KIPO issued patents. To understand what has been happening in ICT convergences, the patents of 87 main IPCs that combine ICT classifications (OECD, 2008) and the classification of ICT industries [10] were selected from KIPO database, and then the converging technologies were chosen based on the co-classification method. [12] For activity analysis, the patent activity index and normalized Herfindahl index were mainly used.

Use of External Information Sources by Potential Adopters of IT Convergence Products: Focusing on Potential Adopters of Smartphone

In this study, we have examined how the potential users of IT convergence product use the external information sources for purchasing decision focusing on a case of smartphone. Although the specifications and price of IT convergence products, such as smartphone, tablet pc, and smart TV, are considered as major criteria for purchasing decision, the competitiveness of these factors have disappeared as many companies launch similar products in the market. External information sources play a significant role to differentiate the alternatives by offering value-added experience information. The effect of external information sources becomes stronger for experience and high-involvement product whose performance can be evaluated through only users` direct experience. In this study, we categorized the external information sources for smartphone into five; company ads, personal network, expert group, consumers, and media. Through an empirical study with potential smartphone users, we verified how these external information sources affect users` purchasing decision in the perspective of the perceived attributes of information source, quality of information, and individual`s characteristics based on self-regulatory theory.

Analysis on the Mobil IPTV Adoption and Moderator Effect Using Extended TAM Model

Convergence is a key word in all of industries as well as telecommunication industry recently. The most noted case is media (specially, broadcasting) and IT convergent one in Korea. The reason is that broadcasting is under the influence of IT technology development trajectory such as digitalized, broadband, interactive and so on. For example, there are mobile TV (in Korea, DMB), IPTV, and mobile IPTV. Especially, mobile IPTV will be offered TV contents via mobile IP network such as WiMax or 4G all-IP. The determinants influencing mobile IPTV adoption decisions are analyzed using extended TAM model. Furthermore, we verify the moderator effects of experience and similar services of mobile IPTV.

Effectiveness of User Involvement for New Service Development : Focusing on Domestic Digital Content Industry

User involvement in New Service Development(NSD) has attracted the limelight as a good method, but we still lack an empirical analysis of the effectiveness of user involvement. In addition, positive and negative determinants of user involvement in NSD have not often been dealt with in past research, and this deficiency has been identified as a barrier to the effective utilization and diffusion of user involvement in NSD. To our knowledge, this is the first study to empirically investigate the degree of implementation of user involvement in NSD, the effectiveness of user involvement, and the utilization strategy in the digital content industry. First, we reveal that ordinary user involvement is more effective for NSP performance than lead users or business partner companies. Second, we empirically demonstrate that the effectiveness of involving lead user and ordinary user in NSP is different according to the new service type and service development stage. Based on the results of our analyses, we suggest some strategic directions for the companies who want to newly adopt or improve their current level of user involvement in NSD. We expect that the implications of this study will be utilized for efficient diffusion of user involvement in NSD and will eventually contribute to tangible achievements for companies in the digital content industry.