• Journal of Korea Port Economic Association
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• v.25 no.3
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• pp.139-164
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• 2009

The purpose of this paper is to investigate the value chain efficiency of Korean port investment by using the newly developed multi-year and multi-stage value chain efficiency model of DEA(Data Envelopment Analysis). Inputs[port investment amount, cargo handling capacity, and berthing capacity], and outputs[cargo handling amount, number of ship calls, revenue, and score of customer service satisfaction] are used during 14 years(1994-2007) for 20 Korean seaports by using two kinds of DEA models. Empirical main results are as follows: First, Model 1 shows that the ranking order of multi-stage value chain efficiency is Stage 2, Stage 3-1, Stage 1, and Stage 3-2. And according to the value chain average efficiency scores, ranking order is stages 2, 1, 3-1, and 3-2. In Model 2, 3(Incheon, Mogpo, and Jeju) out of 9 ports show the ranking order of Stages 2, 3-2, 3-1, and 1. And value chain average efficiency scores rank in order of Stages 2, 3-2, 3-1, and 1. Second, the difference among the value chain efficiency scores of each stage comes from the efficiency deterioration of all ports except Stages 2 and 1 in Model 1. In Model 2, value chain efficiency scores among the Stages 3-1, 3-2 compared to Stage 1 were deteriorated. The main policy implication based on the findings of this study is that the manager of port investment and management of Ministry of Land, Transport and Maritime Affairs in Korea should introduce the multi-year, multi-stage value chain efficiency method for deciding the port investment amount and evaluating the effect of port investment after considering the empirical results of this paper carefully.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2002.05a
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• pp.442-448
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• 2002

오늘날의 경영환경은 불완전할 뿐만 아니라 경쟁이 심화되어 기업간 경쟁의 범위를 벗어나 공급사슬간의 경쟁으로 옮겨가고 있으며, 정보기술관리과 eBusiness가 급격히 발전하면서 공급사슬관리(SCM)를 최적화하기 위해서는 기업의 경쟁전략과 공급사슬전략 그리고 제품 특성을 반영하여 공급사슬이 설계되고 운영되어야 한다. 본 연구에서는 제품의 특성을 수요 측면을 중심으로 혁신적 제품과 기능적 제품으로 특징지을 수 있는 제품의 혁신성을 측정하고, 제품의 혁신성이 공급사슬 전략에 어떠한 영향을 미치는지 알아보기 위하여 각 공급사슬관리(SCM)의사결정영역에서의 공급사슬관리가 어느 정도 이루어지고 있는가를 살펴봄으로써 전략에서의 차이점을 규명하고자 하였다. 본 연구를 통해 제품의 혁신성이 공급사슬관리(SCM)의사결정영역에 미치는 영향을 검증함으로써, 기업들에게 자사 제품에 대한 전략적 분석 필요성의 개념적 근거를 제시하고자 한다. 또한 제품특성, 제품 전략, 공급사슬 전략, 기업경쟁전략의 연계적 개념을 제공하고 자사의 공급사슬의 효율성과 반응성을 진단할 수 있는 프레임워크를 제공하고자 한다.

• Journal of Korea Society of Industrial Information Systems
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• v.15 no.5
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• pp.221-233
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• 2010

For the education information system, evaluation of the performance have to incorporate the special characteristics od education. This paper is to develop some measures to assess the performance of Korean National Education Information System (NEIS). Performance measures are classified those into three detailed areas as the flow of value chain. which include end-users area, education process area and performance area. Research results show that the users's concern to the information system have an affirmative influence on the satisfaction of users, and attitude change of users have also a positive influence on the administration area of the information system such as task productivity, task innovation, satisfaction of the education users, activity of control process. Also, user's satisfaction for NEIS, that comes from the communication, have an affirmative influence on the better performance of education,