• 무역상무연구
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• 제14권
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• pp.237-256
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• 2000

Electronic commerce has been threatening to address the transaction inefficiencies in international trade that is conducted through letters of credit(L/Cs) and other forms of traditional paper-based financial instruments. The replacement of traditional paper documets with electronic alternatives is becoming more of a relity within a number of business sectors. The conceptual model of electronic L/Cs presented in this paper is intended to provide a framework for discussing the development of a paperless credit. The TradeCard network provides a business-to-business e-commerce infrastructure that enables buyers and sellers to conduct and settle international trade transactions securely over the Internet. Sellers and Buyers should select the best payment methods of traditional L/Cs, electronic L/Cs, TradeCard, Bank Credit Card etc. in consideration of their business circumstances.

• East Asian Economic Review
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• 제23권3호
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• pp.311-329
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• 2019

Since China's opening to international trade, the rapid growth of the country's export sector has been coupled by an intensification of migratory outflows of ethnic Chinese. The literature has already stressed the beneficial role of migration in enhancing bilateral trade. The present paper applies a gravity model in order to capture the impact of migration on Chinese exports for a relatively long period of time (1995-2017) where significant developments take place. We estimated four regressions, each of them confirming the positive network effects of migration for boosting export growth. Apart from the main finding, it appears that the role of institutional and geographical proximity can prove to be complementary for trade enhancement. The results finally suggest mixed effects due to the countries' import openness, indicating that China's free trade agreements acts as a substitute for smoothing trade competition from third countries.

• 한국경제지리학회지
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• 제20권2호
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• pp.121-136
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• 2017

본고에서는 2005년부터 2014년까지 47개국 57개 농식품 수출입 자료를 이용하여 글로벌 교역 네트워크의 측면에서 한국 농식품의 교역 구조를 파악하였다. 본 연구의 주요 분석 결과는 다음과 같다. 첫째, 상품별로 네트워크 구조의 차별성이 나타난다. 즉, 채소, 과실, 가공식품의 순으로 컴포넌트 수가 유의하게 큰 것으로 분석되었다. 둘째, 상품에 따라 커뮤니티 구조가 동태적으로 변화하는 과정이 차별적이다. 교역 네트워크 내에서 일부 상품의 커뮤니티 구조가 역동적으로 변화하는 반면에, 개방의 확대 추세에도 불구하고 구조 변화가 나타나지 않는 상품군이 상존한다. 셋째는 우리 농식품의 국제 경쟁력 강화 추세가 나타난다는 것이다. 57개 분석 대상 농식품의 상위 네트워크에서 한국의 외향 연결도수가 드러나는 상품은 총 26개 품목에 불과하다. 그럼에도 불구하고 일부 채소류와 가공식품 등에서 국제경쟁력의 확대 가능성이 있는 것으로 나타났다.

• 한국지역지리학회지
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• 제10권4호
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• pp.787-799
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• 2004

본 연구는 대도시 산업 지역사회 존립기반 연구의 일환으로 대구시 북성로 공구상가를 사례로 기업간 거래 네트워크의 실태를 분석하였다. 이 지역은 영세소규모의 공구 판매업체 집적지로 이들 업체가 거래 관계를 맺고 있는 주요 업체들을 주로 북성로 및 인접지역에 분포하는 전형적인 도심형 산업지역사회를 구성하고 있다. 북성로 총구상가가 산업지역사회로서 존립할 수 있었던 가장 중요한 기반은 상가내 제품 수급상의 장기적인 거래 네트워크였다. 지역 업체들은 거래 관계에 있어 순수한 시장 메커니즘에 의존하기 보다는 사회자본에 기초한 기업간 네트워크 관계에 더 의존하고 있었다. 기업간 거래 네트워크를 맺게 되는 이유는 무리한 주문의 경우에도 거래가 가능하였다는 점과 외상거래가 가능한 점이였다. 이러한 기업간 거래 네트워크의 기능 및 역할에 있어서는 업체 상호간에 기술이전과 학습이 가장 중요하며, 장기간의 거래 네트워크를 유지함에 있어서는 공간적 접근성보다는 관계적 접근성이 오히려 중요한 의미를 가진다.

• 한국항만경제학회지
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• 제31권1호
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• pp.69-84
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• 2015

본고는 개입 승법계절 ARIMA모형과 인공신경망모형을 이용하여 해상운송 물동량을 추정하고 사전적 예측치를 도출하였다. 개입 ARIMA의 추정결과 오차항에서 자기상관이 존재하지 않고 정규성이 존재함으로써 오차항의 기본가정이 잘 충족되고 있음을 확인하였다. 그리고 개입 승법계절 ARIMA모형과 인공신경망모형에 대해 예측실적 오류를 ME, MAE, RMSE, MSE로 측정한 결과 ARIMA $(2,1,0)(1,0,1)_{12}$이 가장 우수한 예측모형임을 확인할 수 있었다. 2015년부터 2019년까지의 기간에 대해 개입 ARIMA모형을 이용한 해상운송 물동량의 사전적 예측치 결과 4.54%에서 4.99%의 연평균 증가율을 보였고, 인공신경망모형을 이용한 예측결과 2.00%에서 2.44%까지의 연평균 증가율을 나타냈다.

• 통상정보연구
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• 제4권2호
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• pp.131-153
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• 2002

An information technology revolution is sweeping the world driven by digitalization and tremendous popularity of the Internet. Electronic commerce and trade is the mainstream of this trend, and realization of a cyberspace without physical, spatial, and time restraints has led radical structural changes in international trade. Northeast Asia including Korea, China and Japan is becoming more important as a core economic region in terms of economic growth, intra-regional trade in particular. The introduction to electronic trade system and networks would playa vital role in speeding up trade of commodities, service and information etc. Therefore the study aims to examine a scheme to facilitate international trade in Northeast Asia by establishing information infrastructures. The study begins with reviewing current situation in information infrastructure such as the number of PC, utilization ratio of internet, information network, volume of electronic commerce. It is analyzed that what kinds of obstacles to facilitating electronic trade in Northeast Asian countries in terms of physical infrastructure, institutions, regulations, technologies regarding information exchange among countries. Finally this study presents some suggestions in order to remove the problems currently existed in vitalizing electronic trade.

• 한국의류산업학회지
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• 제18권2호
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• pp.139-148
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• 2016

There is an expanding global network of free trade agreements (FTA). High-quality, comprehensive free trade agreements play an important role to support global trade liberalization and are explicitly allowed under the World Trade Organization (WTO) rules. An FTA is an international treaty that removes barriers to trade and facilitates stronger trade and commercial ties that contribute to increased economic integration between participating countries. Korea benefits from the global FTA trend; however it has started and developed FTA negotiations later than other countries. Current FTA agreements exist with Chile, Singapore, EFTA, ASIAN, India, EU, Peru, USA, Turkey, Australia, and Canada; in addition, there are ongoing negotiations with China, Colombia, New Zealand, and Vietnam. FTA open up opportunities for the textile/clothing industry to expand businesses into key overseas markets. FTA improve market access across all areas of trade to help maintain and stimulate the competitiveness of textile/clothing firms. This study examines the expansion of free trade agreements in light of changes in the international trade environment and the status of the Korean textile/clothing industry. Korea's textile/clothing export/import products and concession of tariff, country of origin covered under Korea-US/China FTA are investigated to identify problems. This study provides practical and policy implications for the textile/clothing industry in regards to the Korea-US/China FTA.

• Journal of Mechanical Science and Technology
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• 제18권8호
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• pp.1327-1337
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• 2004

An efficient multi-objective optimization method is presented making use of neural network and a systematic satisficing trade-off method (STOM), in order to simultaneously improve both maneuverability and durability of tire. Objective functions are defined as follows: the sidewall-carcass tension distribution for the former performance while the belt-edge strain energy density for the latter. A back-propagation neural network model approximates the objective functions to reduce the total CPU time required for the sensitivity analysis using finite difference scheme. The satisficing trade-off process between the objective functions showing the remarkably conflicting trends each other is systematically carried out according to our aspiration-level adjustment procedure. The optimization procedure presented is illustrated through the optimum design simulation of a representative automobile tire. The assessment of its numerical merit as well as the optimization results is also presented.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2008년도 추계학술대회 및 정기총회
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• pp.329-341
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• 2008

Knowledge management has garnered attention due to its role of maintaining competitive advantage. Creating and sharing knowledge is an essential part of managing knowledge. However, the best knowledge is underutilized because employees tend to seek knowledge through their informal networks, not reach out to other sources for obtaining the best knowledge. Prior studies on informal networks pointed out a negative influence of heavy reliance on learning through informal networks but they paid little attention to a structure of informal networks and its impacts on diffusion of knowledge. The aim of our study is to show impacts of informal network on knowledge management by employing a network structure and investigating diffusion of knowledge within it. Our study found out that performance of learning becomes lower in a highly clustered network. Creating random links such as serendipitous learning can improve performance of knowledge management. When employees rely on a knowledge management system, creating random links is not necessary. Costs of adopting knowledge affect performance of knowledge management.

• East Asian Economic Review
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• 제23권1호
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• pp.3-26
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• 2019

This study investigates the effect of high-skilled inventor emigration rate on growth rate of the country of origin (COO). Inventor emigrants represent the human capital that can generate highly innovative work. The social network they form spurs knowledge diffusion and technology transfer back to their COOs, which in turn affects innovation and growth in their home countries. We run dynamic panel estimation for 154 countries during 1990-2011, and empirically show that a positive and statistically significant effect exists for the interaction of inventor emigration and trade. The result indicates that the direct negative impact of the brain drain can be mitigated by the positive feedback effect generated by the high-skilled inventor emigrants abroad. When coupled with an active trade policy that reinforces growth, countries can partially recoup the direct effect of the human capital loss. We stress the importance of international trade for successful technology transfer to occur, and offer insights for policies that can utilize the benefits of the rich social network of their high-skilled emigrants.