• 지능정보연구
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• 제23권1호
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• pp.69-93
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• 2017

ICT는 제조기반 산업사회에서 가치사슬의 효율성/효과성의 지원을 목적으로 도입되었으나 정보기반 산업사회에서는 ICT가 시장 가치 창출의 주체가 되어 다중 가치사슬의 형성 가능성을 기대하게 하였다. 즉, ICT의 발전은 공급 및 수요의 다변화와 다양성의 동인이 되면서 가치를 창출하기 시작했고, 이를 중심으로 하는 신 가치 사슬의 등장은 구 가치사슬과의 충돌의 문제를 야기하였다. 즉, 다중 가치사슬이 존재 가능한 플랫폼에서는 가치사슬 간의 충돌, 중첩, 생성, 상실 등의 동적 상황 등에 따른 신/구 가치의 창출과 소멸 등이 발생하게 된다. 예를 들어, ICT에 기반을 둔 우버택시 서비스는 신 가치사슬을 형성하여 택시서비스 시장에서 신/구 가치사슬간의 충돌을 야기했다. 제조기반 산업사회에서는 단일 가치사슬의 시장 선점이 중요하였으나, ICT 기반 융합 제품/서비스/정보가 유통되는 플랫폼에서는 시장 상황 변수의 동적 변화에 따라 다중의 가치사슬이 존재하면서 서로 충돌과 공존을 야기하게 되었다. 따라서 ICT에 기반을 둔 지능형 정보사회의 발전과 함께 시장가치 최대화를 위해 다중 가치사슬 간 충돌 최소화와 공존의 최대 가능성을 높일 수 있는 모형의 제시가 중요하다. 본 연구에서는 먼저 의료서비스 시장을 중심으로 하는 다중 가치사슬의 동적 플랫폼 형성에 대해 논의한다. 즉, 의료서비스 시장에 ICT 기반 원격 및 지능형 의료서비스 등이 구 시장에 진입함으로써 발생하는 가치사슬 간의 충돌을 최소화하고 공존 가능성을 높이기 위한 공존 요인 변수에 대해 논의 한다. 이를 위해 다중의 공급과 소비 및 서비스가 존재 가능한 다중 가치사슬이 충돌 및 중첩하는 과정에서 공존 요인 변수 등에 기반하여 가치 사슬들을 동적으로 생성/변화/소멸 및 공존하기까지 의료서비스 플랫폼에 대해 논의한다. 또한 플랫폼 내의 각 가치사슬의 생산가치의 증가와 가치사슬 간의 상호 작용에 의한 부가가치의 창출 등에 의해 플랫폼의 총 가치가 증가 될 수 있음을 논의한다. 마지막으로 공존 모형을 제안하고 실험을 통해 가치사슬 간의 공존 가능성을 제시한다.

• 한국프랜차이즈경영연구
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• 제8권1호
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• pp.43-53
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• 2017

Purpose - The coffee market in Korea has been dramatically developed and coffee chains dominate the Korean coffee market recently. Customer's perceived value is one of the marketing tools to get competitive advantages of coffee chains, and plays a critical role to study on coffee franchise industry. Thus, this study is to identify the effect of customer's perceived value (price, brand, service, and quality) on revisit intentions and word-of-mouth(WOM). Research design, data. and methodology - Customer's perceived values consists of four dimensions. 253 samples of 320 were used for data analyses excluding unusable responses. The data were analyzed with SPSS 21.0 and SmartPLS 3.0. Result - First, customer's perceived brand value and service value have a significant, positive effect on revisit intentions. Second, Price value and brand value have a positive influence on WOM. Third, gender difference plays a moderating role in the relationship between brand value and price value and WOM, and between brand value and revisit intentions. Conclusions - Males tend to focus more on their perceived brand value of coffee shops for revisit and recommendation, otherwise females consider price value to give an advice to others. Based on the results of this study, the marketers of coffee chains can develop effective strategies regarding gender difference as well.

• 한국멀티미디어학회논문지
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• 제10권12호
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• pp.1663-1670
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• 2007

One-way hash chains are important cryptographic primitives and have been used as building blocks of various cryptographic applications. Advantages of one-way hash chains are their simplicity and efficiency for generation based on low-powered processors with short time. However, a drawback of one-way hash chains is their difficulty of control to compute interval values of one-way hash chains. That is, when hash values in one-way hash chain are used as encryption keys, if one hash value is compromised, then the attacker can compute other encryption keys from the compromised hash value. Therefore, direct use of one-way hash chains as encryption keys is limited to many cryptographic applications, such as pay per view system and DRM system. In this paper, we propose a new concept which is called interval hash chain using a hash function. In particular, proposed hash chains are made for only computing interval hash values by using two different one-way hash chains. The proposed scheme can be applied to contents encryption scheme for grading and partially usable contents in DRM system.

• 한국경제지리학회지
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• 제19권2호
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• pp.399-416
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• 2016

본 연구의 목적은 베트남 커피변경지역이 글로벌 가치사슬에 통합되는 과정에서 나타나는 가치의 전유 및 실현관계를 고찰하고, 공유가치창출에 대한 지속가능한 커피 글로벌 가치사슬의 의미를 분석하고자 한다. 최근 베트남의 대표적 커피 변경지역인 닥락성은 일반 커피생산의 착취적 가치사슬에서 인증 커피 생산에 따른 공유가치사슬로의 전환을 경험하였다. 이와 같은 전환은 글로벌 가치사슬에서 지역의 교섭력과 경쟁우위를 강화시킴으로써 지속적인 가치 창출을 수반할 수 있을 것으로 기대되었다. 그러나 실질적으로 농가, 중개인, 외국 가공업체와 같은 지역 이해관계자간 이윤 분배의 위계성이 더욱 심화되는 현상이 나타났다. 이와 같은 현상의 원인은 크게 두 가지 측면에서 나타났다. 첫째, 다국적기업, 중개인, 농가 간 전속관계의 형성은 이해관계자에게 안정적인 시장을 확보해 주었지만, 다국적 기업이 전속 커피 중개인을 통해 농가를 간접적으로 통제함으로써 이해관계자 간 위계가 더욱 심화되었다. 둘째, 공유가치창출의 명목으로 농가로 전가된 사회적 및 생태적 비용이 농가의 경제적 이윤 획득을 악화시킨 반면에 다국적기업으로의 비대칭적이고 위계적인 이윤 분배를 가져왔다. 그 결과, 닥락성에 보다 위계적이고 종속적인 글로벌 가치사슬이 형성되었다.

• 무역학회지
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• 제46권4호
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• pp.95-112
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• 2021

The Regional Comprehensive Economic Partnership (RCEP) signed by the 15 Asian countries in 2020 forms the world's largest free trading bloc. Using data for the period 2001 - 2019, this study evaluates global value chains (GVCs) among the RCEP members, with a primary focus on GVC backward participation which involves imports intermediates embodied in exports. This study finds that the RCEP's intra-regional linkages, particularly with the ASEAN members, are significantly higher than its extra-regional linkages in trade and GVC backward participation. Among the individual RCEP member countries, Korea is found to have a particularly strong intra-regional linkages with the ASEAN members in both trade and GVC participation.

• Journal of Korea Trade
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• 제23권4호
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• pp.103-114
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• 2019

Purpose - This paper investigates the structure of exports across countries in terms of value added. Exports value added is examined under two categories, domestic and overseas. Using a statistical classification method by distance based on these two value added categories, this paper estimates the similarity of exports value added across countries including Korea. Design/methodology - The model of study is to employ a generalized distance function and then derive the Manhattan and Euclidean distances. The paper also performs cluster analysis using the Partitioning Around Medoids (PAM) and hierarchical methods to classify the 44 sample countries considered in this study. Findings - Our main findings are as follows. The 44 countries can be classified under 5 groups by their domestic and overseas value added in exports. Korea has a sandwich global value chains (GVCs) position between Japan, China, and Taiwan in the East Asian region. Originality/value - Existing papers point out the double counting problem of trade statistics as the intermediate goods trade across borders increases. This paper addresses the double counting problem by using the World Input-Output Table. The paper shows the need to explore the similarity of value added in exports structure across countries and investigate the GVCs position and role of each country.

• 무역학회지
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• 제46권6호
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• pp.21-38
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• 2021

China adopts the "Outline of the 14th Five-Year Plan for National Economic and Social Development of the People's Republic of China and the Long-Range Objectives Through the Year 2035" in the context of tremendous changes in the international environment. A new development paradigm is proposed to prioritize domestic circulation, reinforcing both domestic and international circulations. The industrial policies of China's "14th Five-Year Plan" will have an impact on Korea. Thus it is necessary for Korea to cooperate with China to actively respond to changes in the industrial chains and value chains in Asia and the world. Over the past 29 years since the establishment of diplomatic relation between China and South Korea, the two countries have enjoyed close economic and trade relations. China-ROK cooperation is critical to regional economic development in the Fourth Industrial Revolution and the era of remarkable changes in the world's political and economic structure. China is a robust developing country, while Korea is a developed one in with steady foothold in the world economy. China and South Korea should work together to contribute to the rapid recovery and development of the world economy instead of becoming competitors.

• KDI Journal of Economic Policy
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• 제38권4호
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• pp.45-76
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• 2016

This paper measures the extent to which South Korea participated in global value chains (GVCs) from 1995 through 2011 and scrutinizes the consequences of such participation on the Korean economy. To this end, the World Input Output Database is utilized to calculate GVC income, GVC employment, and value-added exports created by Korean and foreign industries. Our findings show that Korea radically internationalized its production activities during the sample period, widening the gap between gross exports and value-added exports. We also document that Korea's participation in GVCs has changed the value-added and employment structures in domestic industries in accordance with their comparative advantages while exacerbating the degree of wage inequality.

• Journal of Computational Design and Engineering
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• 제3권1호
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• pp.53-62
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• 2016

The current trends of product customization and repair of high value parts with individual defects demand automation and a high degree of flexibility of the involved manufacturing process chains. To determine the corresponding requirements this paper gives an overview of manufacturing process chains by distinguishing between horizontal and vertical process chains. The established way of modeling and programming processes with CAx systems and existing approaches is shown. Furthermore, the different types of possible adaptions of a manufacturing process chain are shown and considered as a cascaded control loop. Following this it is discussed which key requirements of repair process chains are unresolved by existing approaches. To overcome the deficits this paper introduces repair features which comprise the idea of geometric features and defines analytical auxiliary geometries based on the measurement input data. This meets challenges normally caused by working directly on reconstructed geometries in the form of triangulated surfaces which are prone to artifacts. Embedded into function blocks, this allows the use of traditional approaches for manufacturing process chains to be applied to adaptive repair process chains.

• 무역학회지
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• 제47권4호
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• pp.233-254
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• 2022

Although there is growing literature evidence of linkages between global value chains (GVCs) and foreign direct investment (FDI), the results are mixed and ambiguous by geographic dimension, time period and sectoral scope. Moreover, bilateral approaches on these connections have been rarely analyzed. In this context, we investigate the effect of bilateral greenfield FDI and cross-border M&A on GVC linkages between host countries and source countries. We match three-year averages of bilateral FDI and UNCTAD-Eora GVC value-added data from 2005 to 2019 between 37 OECD sources and 176 host countries (37 OECD versus 139 non-OECD countries). In the structural gravity model, the empirical specification includes bilateral and country-period fixed effects and uses a Poisson Pseudo-Maximum Likelihood (PPML) estimator. We find that greenfield and M&A FDI promote forward and backward GVC linkage for all sectors between OECD countries, whereas greenfield FDI promotes backward GVC linkage between OECD and non-OECD countries. In addition, the results indicate that the degree of influence of GVCs by FDI flows is greater for forward GVC than backward GVC among OECD countries.