R을 이용한 구조방정식모델링: 매개효과분석/조절효과분석 및 다중집단분석

곽기영,Kwahk, Kee-Young 한국지식경영학회 2019 지식경영연구 Vol.20 No.2

This tutorial introduces procedures and methods for performing structural equation modeling using R. To do this, we present advanced analysis methods based on structural equation model such as mediation effect analysis, moderation effect analysis, moderated mediation effect analysis, and multiple-group analysis with R program code using R lavaan package that supports structural equation modeling. R is flexible and scalable, unlike traditional commercial statistical packages. Therefore, new analytical techniques are likely to be implemented ahead of any other statistical package. From this point of view, R will be a very appropriate choice for applying new analytical techniques or advanced techniques that researchers need. Considering that various studies in the social sciences are applying structural equations modeling techniques and increasing interest in open source R, this tutorial is expected to be useful for researchers who are looking for alternatives to existing commercial statistical packages.

조직변화에 대한 태도와 정보시스템 수용

곽기영(Kee Young Kwahk) 한국경영학회 2005 經營學硏究 Vol.34 No.5

정보시스템수용 동기요인에 관한 개념적 고찰

곽기영(Kee-Young Kwahk) 계명대학교 산학연구소 2004 經營經濟 Vol.37 No.1

온라인 브랜드 커뮤니티 몰입이 브랜드 충성도에 미치는 영향

곽기영(Kee-Young Kwahk),옥정봉(Jung-Bong Ock) 한국경영과학회 2011 한국경영과학회지 Vol.36 No.3

As brand is increasingly important as a competitive source and information and communication technology based on Internet is rapidly advanced, many companies have paid attention to online brand community that is expected to help strengthen the customer’s awareness on their products and services. This study suggests four factors-interaction, purpose, playfulness, reward-that facilitate online brand community commitment, and examines the effect of online brand community commitment on brand loyalty from the perspective of social identity theory. For this purpose, 243 sample data were collected from three online brand community sites and the proposed research model was empirically tested using LISREL 8.7 based on structural equation model. In conclusion, this study proposed theoretical and practical implications along with its limitations and future studies.

IT기반 조직민첩성이 기업성과에 미치는 영향

곽기영(Kee Young Kwahk),홍문경(Moon Kyung Hong) 한국경영학회 2010 한국경영학회 통합학술발표논문집 Vol.2010 No.08

온라인 커뮤니티 몰입의 브랜드 충성도로의 전이

곽기영(Kee-Young Kwahk),옥정봉(Jung-Bong Ock) 한국경영과학회 2010 한국경영과학회 학술대회논문집 Vol.2010 No.10

다른 기업과 차별화되는 경쟁원천으로서 브랜드의 중요성이 점차 증대하고 인터넷을 바탕으로 한 정보통신기술이 급속히 발달함에 따라, 제품 및 서비스에 대한 고객의 인지도를 강화시킬 수 있는 방법으로서 브랜드를 바탕으로 한 온라인 커뮤니티의 활용이 많은 기업들로부터 주목받고 있다. 본 연구에서는 이용과충족이론을 바탕으로 온라인 브랜드 커뮤니티에 대한 충성도(즉 몰입)를 증가시키는 요인으로서 상호작용성, 목적성, 즐거움, 활동보상을 제시하고, 사회정체성이론의 관점에서 온라인 커뮤니티 몰입이 브랜드 충성도로 전이되는 메커니즘을 규명하고자 한다. 이를 위해 세 개 온라인 브랜드 커뮤니티 사이트로부터 234개의 표본을 수집하였고, 구조방정식모델을 기반으로 한 LISREL 8.70을 이용하여 제안된 연구모델을 실증적으로 검증하였다. 연구결과에 대한 토의를 바탕으로 학문적ㆍ실무적 시사점을 제시하였고 연구의 한계점 및 미래 연구방향을 제안하였다. As brand is increasingly important as a competitive source and information and communication technology based on Internet is rapidly advanced, many companies have paid attention to online brand community that is expected to help strengthen the customer’s awareness on their products and services. This study suggests four factors?interaction, purpose, playfulness, reward?that facilitate online brand community commitment (i.e., loyalty for online brand community) based on the use and gratification theory, and examines the mechanism of loyalty transfer from online community to brand from the perspective of social identity theory. For this purpose, 243 sample data were collected from three online brand community sites and the proposed research model was empirically tested using LISREL 8.7 based on structural equation model. In conclusion, this study proposed theoretical and practical implications along with its limitations and future studies.

ERP시스템 사용성과 결정요인에 관한 연구

곽기영(Kee Young Kwahk),길진호(Jin Ho Kil) 한국경영학회 2010 經營學硏究 Vol.39 No.2

Turbulent changes of competitive environment have forced organizations to continue enhancing their capabilities to respond to the dynamic environment. With the competitive pressure and the development of information and communication technology (ICT), many organizations have introduced various kinds of enterprise-wide systems like enterprise resource planning (ERP) systems as strategic tools for the purpose of improving organizational performance. Despite their promised strategic benefits, however, their implementation has suffered from a high failure rate and difficulty in realizing the anticipated benefits. Many factors have been widely reported to account for the success and failure of ERP systems implementation, which are not limited to technical issues but various causes arising from the interactions among people, task, and technology. Previous studies have indicated that one of the most critical failure reasons is the lack of knowledge sharing and utilization across organizations. Individuals need to share and transfer their knowledge in order to attain successful usage of and performance benefits from ERP systems, while organizations have to focus on integration of existing knowledge with new one from ERP systems in order to achieve successful organizational change. As a consequence, many information systems (IS) researchers have paid attention to examining the effect of absorptive capacity closely associated with knowledge sharing and transferring on IS usage performance. Knowledge sharing and absorptive capacity can be interpreted in the context of social exchange, in which individuals anticipate future rewards without explicit promise in exchange for their contributions. Based on the social exchange, organizational citizenship behavior (OCB) can be described as a set of behaviors resulting from communications and interactions among individuals that help their colleagues spontaneously, comply with the rules and policy of organizations, prevent possible problems related to their tasks, and commit themselves to working for organizations. ERP systems implementation involves changes not only in systems but also in processes and other social dimensions, which requires appropriate communications and interactions among organizational members. A lack of communications and interactions due to a lack of OCB might lead to weak absorptive capacity and thus negatively influence knowledge sharing across organizations, because OCB facilitates a successful collaboration among functional units and positively impacts individual’s attitude toward radical organizational change. In addition, this kind of spontaneous activities of individuals facilitates enhancing their learning capabilities about the new knowledge and thereby positively influences knowledge sharing across organizations. With this motivation, this study has two research objectives. First, it introduces and tests a theoretical model accounting for the relationships among performance of ERP system usage, absorptive capacity, and OCB. Second, it examines a mediating role of absorptive capacity between OCB and performance of EPR system usage. In order to test the proposed model, the overall approach employed was a field study using the structural equation model. We developed our data collection instrument by adopting existing validated questions wherever possible. A total of 168 complete and valid responses were obtained from 15 organizations. We carried out data analysis using a twostep methodology with LISREL 8.7. The empirical results supported the proposed model and identified the role of the full mediation of absorptive capacity. As a result of the analysis, the following conclusions were reached. First, organizational citizenship behavior significantly influences absorptive capacity. Second, it was revealed that the absorptive capacity of the members of an organization significantly influences the usage performance of ERP systems. Third, absorptive capacity was found to

변화준비성의 강화 : IT기반 조직변화 관점

곽기영(Kee-Young Kwahk) 한국산업경영학회 2008 經營硏究 Vol.23 No.1

  IT를 기반으로 한 조직변화라는 관점에서 볼 때 ERP 시스템의 구현은 시스템에 있어서의 변화 뿐만 아니라 프로세스 및 기타 조직적 차원에 있어서의 변화도 수반한다. ERP 시스템이 비즈니스 및 시스템의 통합으로부터 프로세스 개선 및 이를 통한 중요한 전략적 이득을 가져다 줄 것으로 기대하고 있지만, 다른 한편으로는 높은 실패율과 기대에 못 미치는 성과로 인해 어려움을 겪어왔다. 그러한 실패를 가져오는 대표적 이유 중의 하나가 조직구성원 즉 잠재적 사용자의 변화에 대한 저항인 것으로 알려져 있다. 변화에 대한 준비성이 ERP 시스템 구현과 같은 IT 기반의 조직변화 상황에서 변화에 대한 저항을 줄이는 한 방안이라는 인식하에, 본 연구에서는 변화에 대한 준비성의 형성요인과 ERP 시스템의 사용의도에 미치는 영향을 분석하였다. 실증분석 결과, 변화에 대한 준비성은 두 영역으로부터의 네 요인에 의해 향상될 수 있다는 사실을 발견하였다: (1) 개인적 특성 영역 ? 조직몰입과 지각된 개인역량, (2) 기술적 특성 영역 ? 지각된 유용성과 지각된 사용용이성. 또한, 변화에 대한 준비성이 대상 시스템의 기술적 특성과 함께 ERP 시스템 사용의도에 유의한 영향을 미친다는 사실을 발견하였다. 이러한 연구결과는 정보시스템 관련 이론을 발전시키는데 도움을 주고, ERP 시스템 관련 실무자들에게 통찰력을 줄 것으로 기대한다.   ERP(Enterprise Resource Planning) systems require the restructuring of an organization’s portfolio of transaction-processing application systems to achieve integration of business processes, systems and information. Thus, ERP systems implementation requires changes not only in systems but also in processes and other social or organizational dimensions. Although ERP systems have promised major strategic benefits and process improvements from business and technology integration, their implementation has been plagued by a high failure rate and difficulty in realizing the promised benefits. One of the most critical failure reasons is potential user resistance to change. Based on this background, this study focuses on the development of readiness for change as a way to ease an IT-driven organizational change, including ERP systems implementations. By recognizing that readiness for change is a way for reducing resistance to change in IT-driven organizational change such as ERP systems implementations, we have examined the formation of readiness for change and its effect on ERP usage intention. We have found that readiness for change can be enhanced with the identification of four factors across two domains: individuals’ attachment to an organization and perceived competence regardless of the focal system(organizational commitment and perceived personal competence) and technological characteristics of the focal system(perceived usefulness and perceived ease of use). In addition, we have found that readiness for change positively impacts ERP usage intention together with the technological characteristics of the focal system. This study offers several contributions to theory and practice. From the theoretical perspective, we examine how readiness for change is formed by identifying the antecedents, and consider what role it plays by explaining its effects on the adoption of ERP systems by users. From the practical perspective, we offer managerial insights for ERP practitioners on the development and effect of readiness for change in an ERP project. Theoretical and practical implications of the study are discussed along with its limitations.

통합적인 관점에서의 웹사이트 평가 방법

곽기영(Kee-Young Kwahk) 한국산업정보학회 2002 한국산업정보학회논문지 Vol.7 No.4

정보기술동화의 결정요인 및 기업성과에 미치는 영향

곽기영(Kee-Young Kwahk),임소연(So-Yeon Im) 한국경영과학회 2008 韓國經營科學會誌 Vol.33 No.1

Many organizations have introduced information technology (IT) as an innovation to gain competitive advantages as business environments have become increasingly complex and rapidly changing. Despite the large investment of IT, there have been mixed results about whether IT creates business values. Considering that IT assimilation may play an important role in explaining IT productivity paradox, this study examines the formation of IT assimilation and its effect on the organizational performance. To do so, this study suggests a research model based on Innovation Diffusion Theory by incorporating organization system, communication channel, change acceptability, and innovation factors, and then attempts to empirically explore the role of IT assimilation for enhanced organizational performance using data collected at the organizational level. Structural equation analysis using AMOS provides significant support for part of proposed relationships. Specifically, we have found encouraging results on the role of IT assimilation by identifying its mediating effect on the organizational performance. Theoretical and practical implications of the findings are discussed accordingly.